engine start procedures

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POWER PLANT - MAINTENANCE PRACTICES
ENGINE GROUND SAFETY PRECAUTIONS............................................................................................................ 2
THE AIR INLET (FIG.201) ................................................................................................................................................. 2
ENGINE EXHAUST AND FAN DISCHARGE (FIG. 201, 202, 203, 204) ................................................................................. 2
ENGINE IGNITION SYSTEM HIGH VOLTAGE ...................................................................................................................... 2
HOT ENGINE PARTS ......................................................................................................................................................... 2
FUEL AND OIL.................................................................................................................................................................. 3
PRESSURIZED OIL SYSTEM .............................................................................................................................................. 3
DE-ICING FLUID ............................................................................................................................................................... 3
THRUST LEVER MOVEMENT ............................................................................................................................................ 3
WIND DIRECTION (FIG. 205) ............................................................................................................................................ 3
ENGINE NOISE (FIG. 206)................................................................................................................................................. 3
DRY CHEMICAL FIRE EXTINGUISHING AGENTS................................................................................................................ 3
ENGINE OPERATION LIMITS .................................................................................................................................... 4
EXHAUST GAS TEMPERATURE (EGT) LIMITS .................................................................................................................. 4
OIL PRESSURE LIMITS (FIG. 207) ..................................................................................................................................... 4
OIL TEMPERATURE LIMITS .............................................................................................................................................. 4
OIL CONSUMPTION GUIDELINES ...................................................................................................................................... 4
ROTOR OPERATION SPEED LIMITS (REDLINE SPEED LIMIT) .............................................................................................. 4
STARTER OPERATION GUIDELINE .................................................................................................................................... 4
VIBRATION GUIDELINES .................................................................................................................................................. 4
PROCEDURES TO PREPARE THE ENGINE FOR OPERATION .......................................................................... 5
PREPARE THE ENGINE BEFORE A START IN COLD WEATHER ........................................................................................... 5
PREPARE THE ENGINE AFTER SHUTDOWN IN COLD WEATHER ........................................................................................ 5
PREPARE THE ENGINE FOR THE START PROCEDURE ........................................................................................................ 6
APU ELECTRIC START PROCEDURE .................................................................................................................... 10
ENGINE START PROCEDURES ................................................................................................................................ 12
BEFORE START............................................................................................................................................................... 12
ENGINE AUTOMATIC START PROCEDURE ...................................................................................................................... 13
ENGINE MANUAL START PROCEDURE ........................................................................................................................... 14
MANUAL OVERRIDE START PROCEDURE ....................................................................................................................... 15
ENGINE CROSS BLEED START PROCEDURE.................................................................................................................... 16
STOP THE ENGINE PROCEDURE ............................................................................................................................ 17
USUAL ENGINE STOP PROCEDURE ................................................................................................................................. 17
EMERGENCY ENGINE STOP PROCEDURE ........................................................................................................................ 18
NACELLE/STRUT OVERHEAT WARNING PROCEDURE .................................................................................. 19
PROCEDURE................................................................................................................................................................... 19
MINIMUM GROSS WEIGHT FOR ENGINE OPERATION TABLE 202 ................................................................................... 20
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ENGINE GROUND SAFETY PRECAUTIONS
The Air Inlet (Fig.201)
There is strong air suction as the air goes into the engine. The suction is very strong when
the engine operates at takeoff power.
Clean the area in front of the air inlet before the engine is operated. All loose objects must
be removed.
Engine Exhaust and Fan Discharge (Fig. 201, 202, 203, 204)
Jet Velocity
The engine exhaust and fan discharge air moves very fast at takeoff power. The air
blown behind the engine can move loose stones and other material to a long
distance. The hazard areas are shown on these figures, at minimum idle power,
break away thrust power, and takeoff power.
Jet Exhaust Temperature
The engine exhaust temperature is very hot at idle and takeoff power. The high
temperature goes a long distance behind the engine. The exhaust temperature is
sufficient to damage the asphalt pavement. Concrete is the recommended material
for the area behind the engines.
Toxicity
Tests show that there is a small concentration of carbon monoxide in the jet
exhaust. The exhaust gas is bad to breathe and can cause injury to your eyes. Do
not breathe the jet exhaust gas.
Thrust Reverser
The thrust reverser is usually used after the airplane is on the ground, but can also
be used when the airplane is parked for maintenance checks of the thrust reverser.
When the thrust reverser operates, the fan discharge air blows out to the sides of
the engine and goes to the front. The hazard areas are shown in the figure, reverse
minimum idle power.
Engine Ignition System High Voltage
The engine ignition system supplies high energy and high voltage to start the engine. An
electrical shock from this system can kill or cause injury to persons.
The ignition system operates when the engine starts. But, the ignition system can be used
when the engine is not operated.
Hot Engine Parts
After engine operation, make sure you are very careful about the heat from the hot section
and the exhaust area.
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Fuel and Oil
Engine fuel and oil can make your skin dry if it stays on your skin for a long time. If the fuel
or oil touches your skin, remove the fuel or oil from your skin as soon as possible.
Pressurized Oil System
The engine oil tank is pressurized during operation. The oil pressure slowly decreases
after the engine is shutdown. Make sure you do not remove the cap from the engine oil
tank for a minimum five minutes after the engine shutdown.
De-icing Fluid
The de-icing fluid is applied on the airplane to remove and prevent ice on the wings,
fuselage and engine nacelles. Make sure you do not apply the de-icing fluid into the
engine inlet or exhaust.
Thrust Lever Movement
When it is possible, the thrust lever movements must be slow and smooth.
Wind Direction (Fig. 205)
Wind direction and speed can cause stability problems for the engine.
Position the airplane to limit the amount of crosswind into the engine inlet. If there is a
crosswind, obey the operational limitations for the wind velocity.
Engine Noise (Fig. 206)
The engine makes sufficient noise to cause damage to your ears. See the Noise Hazard
chart for limits. If you listen to the full amount of the engine noise, you can temporarily
cause your ears to become less sensitive. If you listen to the engine noise for a long time,
you can become permanently deaf. When you are near an engine that is in operation,
always use ear protection to decrease the quantity of sound energy which reaches your
ears.
Dry Chemical Fire Extinguishing Agents
Dry chemical fire extinguishing agents are not recommended.
If you use fire extinguishing agents, do this task: Engine Exposure to Fire and
Extinguishing Agents Inspection.
Water is not recommended to remove the dry chemical fire extinguishing agents. These
fire extinguishing agents are not water soluble. Water can cause the fire extinguishing
agents to collect and bond to the engine parts. This can cause the engine performance to
decrease, corrosion and more damage if the engine is not cleaned correctly.
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ENGINE OPERATION LIMITS
Exhaust Gas Temperature (EGT) Limits
B777-200
Ground Start: 750°C.
the engine EGT limit is up to 1030°C for five minutes.
there is no time limit on EGT below 1015°C.
B777-300
Ground Start: 750°C.
the engine EGT limit is up to 1090°C for five minutes.
there is no time limit on EGT below 1050°C.
Oil Pressure Limits (Fig. 207)
You must have a minimum of 10 psig at minimum idle and the main oil pressure must
increase as N2 increases.
Oil Temperature Limits
B777-200 : 124°C Continuous, and 135°C for 15 minutes at all power settings.
B777-300 : 132°C Continuous, and 143°C for 15 minutes at all power settings .
Minimum oil temperature for engine operation is -40 °C.
Oil Consumption Guidelines
B777-200 : Oil consumption is not to be more than 0.89 quarts/hour (0.84 litters/hour).
B777-300 : Oil consumption is not to be more than 0.69 quarts/hour (0.65 litters/hour)
If the engine has a slow or sudden increase in oil consumption, look for external oil leaks
or damage to the engine bearing compartments.
Rotor Operation Speed Limits (Redline speed limit)
B777-200 : The maximum N1 is 2465 rpm (109%).
The maximum N2 is 10918 rpm (117%).
B777-300 : The maximum N1 is 2602 rpm (110.5%).
The maximum N2 is 11292 rpm (121%).
Starter Operation Guideline
Starter air pressure during operation is approximately 30-45 psig.
The starter duty cycle is two start cycles as follows:
5 minutes maximum on, cool for 10 minutes before the next operation.
Vibration Guidelines
N1 Rotor - VIB Advisory level, 4.0 UNITS
N2 Rotor - VIB Advisory level, 4.0 UNITS
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PROCEDURES TO PREPARE THE ENGINE FOR OPERATION
Prepare the Engine Before a Start in Cold Weather
1. It is usually not necessary to increase the temperature of the engine before you do a
start in cold weather. The start engine procedure will usually be sufficient. It is possible
that heat will be necessary for the conditions that follow:
 The rotors are locked with ice.
 Ice and snow are on the inlet cowl, fan cowl panels, and the external surfaces
and joints of the thrust reverser.
 Ice is on the acoustic liners of the inlet cowl, LPT blades and the primary nozzle.
2. Before you start the engine, make sure the N1 rotor turns freely. If the N1 rotor will not
turn freely, do these steps:
 Install a cover on the engine primary nozzle.
 Attach the applicable hot air duct from a heater to the engine.
 Apply heat to the engine gas path until the N1 rotor turns freely.
 Turn the N2 rotor with the starter to make sure that N2 rotor turns freely.
3. If snow or ice holds the fan cowl panels or thrust reversers closed, apply heat as
necessary to remove the snow and ice.
 Remove all snow and ice before you open the fan cowl panels or the thrust
reversers.
4. If ice has collected on the acoustic panels in the inlet cowl, the LPC or LPT fan blades,
or in the primary nozzle, apply heat to remove all ice.
5. Remove the cover from the primary nozzle.
Prepare the Engine After Shutdown in Cold Weather
1. Snow and rain can enter the engine and make ice when the engine is not in operation.
Ice can lock the rotors to the stators. Ice can also cause the rotor system to be
unbalanced.
2. When snow or rain can cause ice in the engine, install the protective covers on the inlet
and the primary nozzle as soon as possible after engine shutdown.
 Install the protective cover on the primary nozzle when the engine temperature
has decreased sufficiently (usually two to four hours).
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Prepare the Engine for the Start Procedure
External inspection check
1. Remove the air inlet and exhaust covers if they are installed.
2. Point the airplane in the wind, as necessary.
3. Make sure the nose landing gear is in the forward direction.
4. Install the lock pins in the landing gear.
5. Install the safety pins in the landing gear doors. (If LG doors still open during engine
test)
6. Install the chocks in front and to the rear of the main gear tires (with parking break ON).
7. Make sure that all loose objects are removed from the air inlet and from the ground
area around the air inlet.
8. Do a visual check for damage or ice on the inlet cowl, fan blades, fan spinner, T12
sensor, and external cowl surfaces.
 Make sure the thrust reverser is stowed.
 Make sure the latch engagement for the fan cowl and thrust reverser latches is
correct.
 If you find ice on these parts, you must remove the ice from the engine with hot
air (See the paragraph : Prepare the Engine Before a Start in Cold Weather).
9. Do a visual check of the core exhaust (LPT) nozzle for damage and unwanted material.
(If you find materials, do a Combustion Section and High Pressure Turbine Section
Stage One Nozzle Leading Edge borescope Inspection before the subsequent start).
10.Do a check of the drain ports for fuel, oil and hydraulic leaks.
 Make sure that fuel drained from the engine does not cause a fire.
11.Make sure that all circuit breakers on these panels are closed:
 APU Auxiliary Panel, P49
 Power Panel - Left, P100
 Power Management Panel - Left, P110
 Power Panel - Right, P200
 Power Management Panel - Right, P210
 Power Panel - Auxiliary, P300
 Power Management Panel - Standby, P310
 Power Panel - Ground Service/Handling, P320
12.Close all doors.
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Flight deck inspection check
1. Supply Primary External Power to the Main 115V AC Buses
 Put the EQUIPMENT COOLING switch on the AUTO position.
 Put the WXR mode switch in the TEST position during ground maintenance
activities.
 If a ground cart is available do this procedure :
Make sure the AVAIL light in the PRIMARY EXT PWR switch comes on.
Set the BATTERY switch to the ON (latched) position.
Push the PRIMARY EXT PWR switch.
Make sure the ON light in the PRIMARY EXT PWR switch comes on.
Set the BATTERY switch to the OFF.
Make sure the L BUS TIE and R BUS TIE switches are in the AUTO position.
 If a ground cart is not available :
Supply the APU generator power to the 115V AC buses:
Set the BATTERY switch to the ON (latched) position.
Set the APU GEN switch to the ON (latched) position.
Set the L BUS TIE and R BUS TIE switches to the AUTO (latched) position.
Start the APU (See APU start procedure).
Make sure the ON light in the APU GEN switch comes on.
Make sure there is sufficient fuel in each of the left and right main fuel tanks to cool the
left, center, and right hydraulic system heat exchangers.
 A minimum of 4794 pounds of fuel in each of the left and right main fuel tanks is
necessary to cool the left and right hydraulic system heat exchangers.
 A minimum of 7303 pounds of fuel in the right main fuel tank is necessary to cool
the center hydraulic system heat exchanger.
 Make sure you have the correct minimum gross weight for engine operation at
high power (Table 202) Page 20.
 If the minimum gross weight charts are used, the follow steps that give
instructions for the usage: (Fig. 207A)
 Determine what will be the "Test Thrust" and what will be the "Balance Thrust"
used for the engine test to be run.
 On the Gross Weight/ C.G. plot, locate the curve that is labeled with the correct
test thrust and balance thrust.
 Locate a point on the plot that corresponds to the gross weight and C.G. location
of the airplane. The C.G location is measured in "% MAC" (Mean Aerodynamic
Chord), with 0% meaning a forward C.G. and 100% an aft C.G.
 Make sure the airplane point on the plot is above the curve for the test thrust and
balance thrust to be used.
2. Put the L, C and R PRIMARY and DEMAND HYDRAULIC pump selectors on the
overhead panel, P5, to ON or AUTO. (Start from Right hydraulic system to Left
System)
 Make sure the hydraulic systems are fully pressurized and operational.
3. Make sure both brake meter pressures indicate approximately 3000 psig on the
LANDING GEAR AND STEERING maintenance page.
4. Examine the engine oil level in the engine oil tank.
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5. Check IDG Oil Level in the EICAS electrical maintenance Page 1 for NORMAL read
out.
6. Check the backup generator oil level in the EICAS electrical maintenance Page 1 for
NORMAL read out.
7. Make sure the forward thrust levers are in the idle thrust position.
8. Make sure that all circuit breakers on the Overhead Circuit Breaker Panel are closed.
9. Make sure the applicable engine fire switch handle is in its usual position.
10.Make sure the parking brake lever is pulled up in the ON position.
11.Open these circuit breakers and attach DO-NOT-CLOSE tags:
 11E6 WXR L1
 1E16 WXR R.
12.If you do not want the warning speakers to sound during an engine operation (If you
operate the engine at 60% N1 or less, it is not necessary to open these circuit
breakers), Open these circuit breakers and attach DO-NOT-CLOSE tags:
 11C1 WARNING SPEAKER-L
 11C14 WARNING SPEAKER-R
13.Do a check on EICAS display for previous fault messages. If necessary, press the
CANCEL/RECALL to clear before you start the engine.
14.If necessary, Put the EMERGENCY and BEACON LIGHTS to ON.
15.Make sure that the airplane is clear and that there are no persons in the dangerous
areas.
16.If you operate the engine at high power, make sure the flaps are fully retracted.
17.Pressurize the Pneumatic System.
 Put these switches in the OFF position:
L PACK
R PACK
ANTI-ICE
AFT CGO TEMP SELECT
BULK CGO TEMP SELECT
 Put these switches on the BLEED AIR/PRESSURIZATION module in the AUTO
position:
L ISLN
R ISLN
C ISLN
APU
 Put these switches on the BLEED AIR/PRESSURIZATION module in the ON
position:
L ENG AIR
R ENG AIR
 Make sure the L and R ENGINE START selector is in the NORM position.
 Procedure to Pressurize with the Ground Air Source :
WARNING :
DO NOT CONNECT THE AIR SOURCE IF THE MANIFOLD IS ALREADY
PRESSURIZED.
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Connect the air source (0-50 psig) to the HP ground connector(s).
Start the ground air source and do not supply more than 50 psig.
Make sure the L and R MANIFOLD DUCT PRESSURE is more than 20 psig.
 Procedure to Pressurize Pneumatic System with the APU
Start the APU (See APU start procedure).
Make sure the L and R MANIFOLD DUCT PRESSURE is more than 20 psig.
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APU ELECTRIC START PROCEDURE
The left main fuel tank must contain a minimum of 430.9 kg of fuel to start and operate the
APU for one hour. Schedule 306.2 kg of fuel for each hour of the APU operation after the
first hour.
CAUTION:
COLD WEATHER OPERATION OF THE APU ON THE GROUND DURING VISIBLE
PRECIPITATION MAY LEAD TO COMPRESSOR DAMAGE.
1. Make sure there are no free objects near the APU.
2. Make sure that these circuit breakers are closed:
 Overhead Circuit Breaker Panel, P11:
11A17 APU FUEL S/O VALVE
 APU Auxiliary Panel, P49:
49A3 APUC 2
 Standby Power Management Panel, P310:
310B1 DC FUEL PUMP
310B6 APUC 1
310B7 APU INLET DR ACTR
310H7 APU GCU
310K8 APU CRK CTRL
310L11 APU INLET DOOR/FUEL SOV CTRL
 Ground Service/Handling Power Panel, P320:
320L12 APU OIL HTR ASSY (INOP)
320L12 APU OIL HTR ASSY
1. Set the switches :
 Set the BATTERY switch to the ON position.
 Make sure the APU GEN switch is in the ON position.
2. If electrical power is available, do the test for the fire detection system:
 Push and hold the FIRE/OVHT TEST switch.
 After 5 seconds, the TEST PASSED message will show on EICAS.
 Release the FIRE/OVHT TEST switch.
3. If electrical power is available, show the APU maintenance page on EICAS.
 Move the APU selector to the ON position.
 After the 8.5 seconds, the APUC MODE display will show APUC IDLE.
Make sure the EICAS STATUS message, APU OIL QTY, does not show.
1. Do the steps that follow to start electrically the APU.
 Make sure the APU BLEED switch is in the OFF position.
 Move the APU selector switch on the P5 panel to START and release it to ON.
 If the APU selector was in the OFF position and then moved to START, the
FAULT light on the P5 overhead panel will flash one time.
 If the APU maintenance page shows, look at the RPM and EGT indications.
 The APU RUNNING message will show on EICAS when the APU is on speed.
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2. If you did not examine the APU oil quantity, make sure the EICAS STATUS message,
APU OIL QTY, does not show.
3. If you did not do the test for the fire detection system, do the steps that follow :
CAUTION:
DO NOT HOLD THE FIRE/OVHT SWITCH FOR MORE THAN 30 SECONDS. IF YOU
HOLD THE FIRE/OVHT SWITCH FOR MORE THAN 30 SECONDS, THE APU WILL DO
AN EMERGENCY SHUTDOWN.
 Push and hold the FIRE/OVHT TEST switch.
 After 5 seconds, the TEST PASSED message will show on EICAS.
 Release the FIRE/OVHT TEST switch.
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ENGINE START PROCEDURES
CAUTION :
BEFORE APPLY THIS PROCEDURE YOU MUST DO THE « PROCEDURES TO
PREPARE THE ENGINE FOR OPERATION »
Before start
1. Set the FUEL L(R) PUMPS FWD and AFT switches to ON for the fuel tank on the same
side as the engine that will be started.
2. Set the forward thrust lever to minimum idle.
3. Set the reverser thrust lever to the forward (down) position.
4. Make sure you pressurize the pneumatic system.
5. Make sure the APU is in operation.
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Engine Automatic Start Procedure
1.
2.
3.
4.
5.
Set the ENGINE AUTOSTART switch to ON.
Set the applicable ENGINE L(R) START/IGNITION switch to START.
Set the applicable L(R) FUEL CONTROL switch to RUN.
Make sure the SAV duct pressure is approximately between 30-45 psig.
Monitor N1, N2, oil pressure, fuel flow, and EGT to make sure the automatic start
procedure is satisfactory or unusual indications.
6. When the engine reaches the idle speed, make sure the ENGINE L(R)
START/IGNITION is automatically set to NORM.
7. Depressurize the Pneumatic System.
NOTES :
 In Autostart mode EEC monitors all parameters except Oil Pressure.
 The EEC (FADEC) will automatically signal to stop the start if one of these failure
conditions occurs:
If EGT does not increase in 15 seconds after fuel is introduced in the engine
If the N1 rotor does not start to turn by 60% N2 (locked N1 rotor)
If the EGT is more than the automatic start limits
If there is an engine surge indication.
 The EGT must start to increase in less than 15 seconds from the time the fuel is ON.
 If the EGT does not increase in 15 seconds after the fuel and ignition are ON, the EEC
(FADEC) will automatically signal to turn off the fuel and ignition. EEC will motor the
engine for 30 seconds to remove the fuel and vapors, and try to start the engine again
with the two ignition systems.
 If the N1 does not turn by the time the engine reaches idle, stop the engine
immediately.
 Make sure the fuel flow shows approximately 225 KPH before engine light off.
 If the EGT increases too fast or is more than the start temperature limit, the EEC
(FADEC) should stop the start attempt. If not, stop the engine immediately.
 During a stop in the automatic start procedure, the EEC (FADEC) will automatically
signal to engage the starter at the maximum starter speed for 30 seconds to dry motor
the engine.
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Engine Manual Start Procedure
1.
2.
3.
4.
5.
6.
7.
Set the ENGINE AUTOSTART switch to OFF.
Set the applicable ENGINE L(R) START/IGNITION switch to START.
Make sure the SAV duct pressure is approximately between 30-45 psig
Make sure the N2 increases.
Make sure the engine oil pressure increases.
Make sure the N1 increases.
Set the applicable L(R) FUEL CONTROL switch to RUN when N2 is at maximum
motoring speed. (NOT LESS THAN 22%)
8. Monitor the N1, N2, fuel flow, and the EGT carefully during the start procedure for all
unusual indications.
9. Make sure the applicable ENGINE L(R) START/IGNITION switch goes to the NORM
position approximately at 65-67% of N2 idle speed.
10.Depressurize the Pneumatic System.
WARNING
 Monitor the start carefully for one of the conditions that follow:
The N2 rotor does not start to turn.
The N2 rotor does not turn at the usual motor speed.
The N1 rotor does not start to turn when the N2 reaches the 60%.
The oil pressure does not increase after the FUEL CONTROL switch is set to RUN.
If one or more of the above conditions occur during start, stop the engine immediately.
 Monitor the start carefully for one of the conditions that follow:
The fuel flow or ignition is accidentally stopped.
The EGT does not start to increase in less than 15 seconds after the FUEL
CONTROL switch is set to RUN.
N2 slowly accelerates with a fast increase in EGT to the limits of 750 °C.
If the EGT increases too fast or is more than the start temperature limit (750 °C).
If one or more of the above conditions occur during start, stop the engine immediately
then dry Motor for 30 seconds.
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Manual Override Start Procedure
1.
2.
3.
4.
5.
6.
7.
Set the ENGINE AUTOSTART switch to ON.
Set the applicable ENGINE L(R) START/IGNITION switch to START.
Tell ground crew to turn the SAV manual control handle to open the starter air valve.
Make sure the N2 increases.
Make sure the engine oil pressure increases.
Make sure the N1 increases.
Set the applicable L(R) FUEL CONTROL switch to RUN when N2 is at maximum
motoring speed. (NOT LESS THAN 22%)
8. Monitor the N1, N2, fuel flow, and the EGT carefully during the start procedure for all
unusual indications.
9. At 62% N2, tell the ground crew to turn the SAV manual control handle to close the
valve.
10.Make sure the applicable ENGINE L(R) START/IGNITION switch goes to the NORM
position at approximately 65-67% of N2.
11.Depressurize the Pneumatic System.
WARNING
 Monitor the start carefully for one of the conditions that follow:
The N2 rotor does not start to turn.
The N2 rotor does not turn at the usual motor speed.
The N1 rotor does not start to turn when the N2 reaches the 60%.
The oil pressure does not increase after the FUEL CONTROL switch is set to RUN.
If one or more of the above conditions occur during start, stop the engine immediately.
 Monitor the start carefully for one of the conditions that follow:
The fuel flow or ignition is accidentally stopped.
The EGT does not start to increase in less than 15 seconds after the FUEL
CONTROL switch is set to RUN.
N2 slowly accelerates with a fast increase in EGT to the limits of 750 °C.
If the EGT increases too fast or is more than the start temperature limit (750 °C).
If one or more of the above conditions occur during start, stop the engine immediately
then dry Motor for 30 seconds.
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Engine Cross Bleed Start Procedure
1. Start the opposite engine using one of the previous procedures.
2. Let the engine become stable at the idle.
3. Set the AIR CONDITIONING L and R PACK switches to AUTO.
 Make sure the flow control valves in the Cabin Air Conditioning and Temperature
Control System (CACTCS) are OPEN and there is stable flow to the packs.
4. Make sure that the L and R MANIFOLD DUCT PRESSURE is more than 20 psig.
5. Set the applicable BLEED AIR L(R) ENG switch (for opposite engine) to ON.
6. Set the BLEED AIR APU switch to OFF.
7. Set the BLEED AIR L(R) ENG switch (for start engine) to OFF.
8. Set the FUEL L(R) PUMPS FWD and AFT switches ON for the fuel tank on the same
side as the engine that will be started.
9. Set the forward thrust lever to minimum idle.
10.Set the reverser thrust lever to the forward (down) position.
11.Increase the opposite engine speed to 67-69% N2.
12.Make sure that the L and R MANIFOLD DUCT PRESSURE is more than 30 psig.
13.Start the engine using the automatic start procedure.
14.Decrease the opposite engine speed to idle and permit the two engines to stabilize at
minimum idle.
15.Depressurize the Pneumatic System.
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STOP THE ENGINE PROCEDURE
Usual Engine Stop Procedure
1. Move the thrust lever to the minimum idle.
 If the engine was operated at more than 70% N1, operate the engine at
minimum idle for 10 minutes before you stop the engine.
 If the engine was operated at 70% N1 or less, operate the engine at minimum
idle for 5 minutes before you stop the engine.
2. Make sure the BLEED AIR L, R, and C ISLV, and APU switches are in the ON
positions.
3. Make sure the external power or APU power is available before you shutdown the
engine.
4. Set the L(R) FUEL CONTROL switches to CUTOFF.
5. Monitor the EGT, N1, N2, and fuel flow indication on engine shutdown.
6. Look for any indication of fire after the engine is shutdown.
 If you see signs of a fire, immediately do the emergency stop procedure and
motor the engine.
7. Set the AIR CONDITIONING L and R PACK switches to OFF.
Keep pneumatic pressure for at least 1 minute for pack cool down.
1. Set the FUEL L(R) PUMPS FWD and AFT switches to OFF.
2. Set these hydraulic demand pumps switches:
 HYDRAULIC DEMAND L and R ELEC switches to OFF.
 HYDRAULIC DEMAND C1 and C2 AIR switches to OFF.
Depressurize Right Hydraulic system last to avoid hydraulic fluid transfers.
1. If the circuit breakers were pulled to prevent operation of the warning speakers, close
these circuit breakers:
 11C1 WARNING SPEAKER-L
 11C14 WARNING SPEAKER-R
2. Close these circuit breakers:
 11E6 WXR L R/T
 11E16 WXR R R/T
3. Turn the APU SELECTOR from ON to the OFF.
4. Shutdown the electrical power.
6/29/2017
17
Emergency Engine Stop Procedure
IF AN ENGINE HAS AN INTERNAL ENGINE FIRE, DO THESE STEPS:
1.
2.
3.
4.
Move the thrust lever to the minimum idle.
Set the applicable L(R) FUEL CONTROL switch to CUTOFF.
Monitor the EGT, N1, N2, and fuel flow for indication of an engine shutdown.
When the N2 speed decreases below 30% on the EICAS display:
 Set the applicable ENGINE L(R) START/IGNITION switch to START.
 Motor the engine for 30 seconds, or until the fire goes out.
 Set the applicable ENGINE L(R) START/IGNITION switch to NORM.
5. If the internal fire continues, use a fire extinguishing agent to put out the fire.
6. Contact ATC.
IF ENGINE HAS AN EXTERNAL ENGINE FIRE, DO THESE STEPS:
1.
2.
3.
4.
Move the thrust lever to the minimum idle.
Set the applicable L(R) FUEL CONTROL switch to CUTOFF.
Pull the applicable engine fire switch handle (DISCH LEFT or RIGHT).
If a FIRE ENG message remains displayed on the EICAS display :
 Turn the engine fire switch handle (DISCH LEFT or RIGHT) to the left or right
and hold for 1 second.
5. If after 30 seconds, FIRE ENG message remains displayed on the EICAS display:
 Turn the engine fire switch handle (DISCH LEFT or RIGHT) to the opposite
position (left or right) and hold for 1 second.
6. Contact ATC.
IF THE ENGINE HAS A FAILURE OR STALL, DO THESE STEPS :
1. Move the thrust lever to the minimum idle.
2. Set the applicable L(R) FUEL CONTROL switch to CUTOFF.
3. Determine the type of failure:
 If the flameout was not caused by an engine failure, do these steps:
Dry motor the engine for 30 seconds or more to make sure the N1 and N2
rotors operate satisfactorily.
Start the engine to make sure the N1, N2, and main oil pressure are
satisfactory.
 If the flameout was caused by an engine failure, do this step:
Correct the cause of the failure before you dry motor or start the engine.
6/29/2017
18
Nacelle/Strut Overheat Warning Procedure
Procedure
If you get one of these messages, OVERHEAT ENG L(R) or BLEED LEAK STRUT L(R),
on the EICAS display during an engine operation, do these steps:
1. Move the thrust lever to the idle position.
2. If the strut overheat indication stops, stop the engine as usual.
3. If the strut overheat indication continues, stop the engine immediately.
6/29/2017
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Minimum Gross Weight for Engine Operation Table 202
(AMM Rev Sep 07 2006)
GE 90-90 et GE 90-94
Minimum Gross Weight for Engine Operation (High Power) *[4]
Power Level
Minimum
Power Level
MAX CG (%MAC) *[5]
*[3]
Airplane
For Opposite
Gross
Engine *[2]
Weight*[1]
777-200
% N1
Minimum Idle (147200 Kgs) 0.0
44
Approach Idle (147200 Kgs) 0.0
44
60% N1
(147200 Kgs) 0.0
44
80% N1
(164000 Kgs) 0.0
34
80% N1
(147200 Kgs) 60.0
44
37
Takeoff (90K) (174700 Kgs) 60.0
36
Takeoff (94K) (179400 Kgs) 60.0
*[1] These values are the minimum gross weight that is necessary to operate the engine at the specified
power level and must be maintained for the duration of the engine run. The operating empty weight (OEW)
values that follow should be used when calculate for the minimum gross weight requirement: 777-200-IGW
(142,500Kgs).
Minimum fuel quantity and distribution must be maintained during the engine run to cool the hydraulic system
heat exchangers.
*[2] It is necessary to operate the opposite engine at this power level with the brakes applied, the parking set,
and the wheel chocks installed (6-12 inches away from the front wheel positions 1, 2, 3 and 4 of the front
tires, and behind but do not touch the rear wheel positions 9, 10, 11 and 12 of the rear tires). Make sure the
nose gear pointed straight ahead.
*[3] Make sure both RIGHT and CENTER hydraulic systems are fully pressurized and operational. Make sure
both brake meter pressures indicate approximately 3000 psig on the LANDING GEAR AND STEERING
maintenance page.
*[4] This table is valid for ambient temperatures of 0 degree F or greater.
*[5] Max CG calculation is not necessary if the airplane is in an OEW configuration with only fuel added to
satisfy the minimum airplane gross weight requirement.
6/29/2017
20
Minimum Gross Weight for Engine Operation Table 202
(AMM Rev Sep 7 ,2006)
GE 90-115
Minimum Gross Weight for Engine Operation (High Power) *[4]
Power Level
Minimum
Power Level
MAX CG (%MAC) *[5]
*[3]
Airplane
For Opposite
Gross
Engine *[2]
Weight*[1]
777-300
% N1
Minimum Idle (173590 Kgs) 0.0
37
Approach Idle (173590Kgs) 0.0
37
60% N1
(173590Kgs) 0.0
37
80% N1
(216818 Kgs) 0.0
29
80% N1
(173590Kgs) 60.0
37
35
Tk off (115K) (220455 Kgs) 60.0
*[1] These values are the minimum gross weight that is necessary to operate the engine at the specified
power level and must be maintained for the duration of the engine run. The operating empty weight (OEW)
values that follow should be used when calculate for the minimum gross weight requirement: 777-300-ER
(167994 Kgs).
Minimum fuel quantity and distribution must be maintained during the engine run to cool the hydraulic system
heat exchangers.
*[2] It is necessary to operate the opposite engine at this power level with the brakes applied, the parking set,
and the wheel chocks installed (6-12 inches away from the front wheel positions 1, 2, 3 and 4 of the front
tires, and behind but do not touch the rear wheel positions 9, 10, 11 and 12 of the rear tires). Make sure the
nose gear pointed straight ahead.
*[3] Make sure both RIGHT and CENTER hydraulic systems are fully pressurized and operational. Make sure
both brake meter pressures indicate approximately 3000 psig on the LANDING GEAR AND STEERING
maintenance page.
*[4] This table is valid for ambient temperatures of 0 degree F or greater.
*[5] Max CG calculation is not necessary if the airplane is in an OEW configuration with only fuel added to
satisfy the minimum airplane gross weight requirement.
6/29/2017
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SEE
A
175 FEET
EXHAUST HAZARD AREA
WARNING:
_______
KEEP ALL PERSONS OUT OF THE DANGEROUS AREA DURING ENGINE
OPERATION. IF THE SURFACE WIND IS MORE THAN 25 KNOTS,
INCREASE THE DANGEROUS AREA AT THE ENGINE INLET BY 20 PERCENT.
CLEAN THE RAMP IF THERE IS SNOW, ICE, WATER, OIL OR OTHER
CONTAMINATION, OR MOVE THE AIRPLANE TO A LOCATION THAT IS CLEAN.
MAKE SURE THAT ALL PERSONS ARE SAFE BEFORE YOU START THE ENGINE.
MAKE SURE THE PERSONS IN THE FLIGHT COMPARTMENT CAN SPEAK TO ALL
PERSONS NEAR THE DANGEROUS AREA DURING ENGINE OPERATION.
OBEY ALL OF THE GROUND SAFETY PRECAUTIONS FOR THE ENGINES.
THE ENGINES CAN PULL PERSONS OR UNWANTED MATERIALS INTO THEM AND
CAUSE INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT.
Minimum Idle-Power Hazard Area
Figure 201 (Sheet 1)
6/29/2017
22
4 FEET
12-FOOT
RADIUS
45 INLET HAZARD AREA
A
____
NOTE:
THE DANGEROUS AREA IS SHOWN FOR THE LEFT ENGINE ONLY.
THE DANGEROUS AREA AROUND THE RIGHT ENGINE HAS THE SAME
DIMENSIONS. WHEN YOU OPERATE TWO ENGINES, THE DANGEROUS
AREA IS THE SUM OF THE LEFT AND RIGHT DANGEROUS AREAS.
Minimum Idle-Power Hazard Area
Figure 201 (Sheet 2)
6/29/2017
23
SEE
B
175 FEET
EXHAUST HAZARD AREA
(COWLING OPEN)
_______
WARNING:
KEEP ALL PERSONS OUT OF THE DANGEROUS AREA DURING ENGINE
OPERATION. IF THE SURFACE WIND IS MORE THAN 25 KNOTS,
INCREASE THE DANGEROUS AREA AT THE ENGINE INLET BY 20 PERCENT.
CLEAN THE RAMP IF THERE IS SNOW, ICE, WATER, OIL OR OTHER
CONTAMINATION, OR MOVE THE AIRPLANE TO A LOCATION THAT IS CLEAN.
MAKE SURE THAT ALL PERSONS ARE SAFE BEFORE YOU START THE ENGINE.
MAKE SURE THE PERSONS IN THE FLIGHT COMPARTMENT CAN SPEAK TO ALL
PERSONS NEAR THE DANGEROUS AREA DURING ENGINE OPERATION.
OBEY ALL OF THE GROUND SAFETY PRECAUTIONS FOR THE ENGINES.
THE ENGINES CAN PULL PERSONS OR UNWANTED MATERIALS INTO THEM AND
CAUSE INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT.
Minimum Idle-Power Hazard Area
Figure 201 (Sheet 3)
6/29/2017
24
FAN COWL PANELS
15-FOOT
RADIUS
45 INLET HAZARD AREA
(COWLS OPEN)
B
NOTE:
____
THE DANGEROUS AREA IS SHOWN FOR THE LEFT ENGINE ONLY.
THE DANGEROUS AREA AROUND THE RIGHT ENGINE HAS THE SAME
DIMENSIONS. WHEN YOU OPERATE TWO ENGINES, THE DANGEROUS
AREA IS THE SUM OF THE LEFT AND RIGHT DANGEROUS AREAS.
Minimum Idle-Power Hazard Area
Figure 201 (Sheet 4)
6/29/2017
25
670 FEET
SEE
A
EXHAUST HAZARD AREA
WARNING:
_______
KEEP ALL PERSONS OUT OF THE DANGEROUS AREA DURING ENGINE
OPERATION. IF THE SURFACE WIND IS MORE THAN 25 KNOTS,
INCREASE THE DANGEROUS AREA AT THE ENGINE INLET BY 20 PERCENT.
CLEAN THE RAMP IF THERE IS SNOW, ICE, WATER, OIL OR OTHER
CONTAMINATION, OR MOVE THE AIRPLANE TO A LOCATION THAT IS CLEAN.
MAKE SURE THAT ALL PERSONS ARE SAFE BEFORE YOU START THE ENGINE.
MAKE SURE THE PERSONS IN THE FLIGHT COMPARTMENT CAN SPEAK TO ALL
PERSONS NEAR THE DANGEROUS AREA DURING ENGINE OPERATION.
OBEY ALL OF THE GROUND SAFETY PRECAUTIONS FOR THE ENGINES.
THE ENGINES CAN PULL PERSONS OR UNWANTED MATERIALS INTO THEM AND
CAUSE INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT.
Breakaway Thrust-Power Hazard Area
Figure 202 (Sheet 1)
6/29/2017
26
11.0 FEET
28.5-FOOT
RADIUS
45 INLET HAZARD AREA
A
NOTE:
____
THE DANGEROUS AREA IS SHOWN FOR THE LEFT ENGINE ONLY.
THE DANGEROUS AREA AROUND THE RIGHT ENGINE HAS THE SAME
DIMENSIONS. WHEN YOU OPERATE TWO ENGINES, THE DANGEROUS
AREA IS THE SUM OF THE LEFT AND RIGHT DANGEROUS AREAS.
Breakaway Thrust-Power Hazard Area
Figure 202 (Sheet 2)
6/29/2017
27
2100 FEET
SEE
A
EXHAUST HAZARD AREA
_______
WARNING:
KEEP ALL PERSONS OUT OF THE DANGEROUS AREA DURING ENGINE
OPERATION. IF THE SURFACE WIND IS MORE THAN 25 KNOTS,
INCREASE THE DANGEROUS AREA AT THE ENGINE INLET BY 20 PERCENT.
CLEAN THE RAMP IF THERE IS SNOW, ICE, WATER, OIL OR OTHER
CONTAMINATION, OR MOVE THE AIRPLANE TO A LOCATION THAT IS CLEAN.
MAKE SURE THAT ALL PERSONS ARE SAFE BEFORE YOU START THE ENGINE.
MAKE SURE THE PERSONS IN THE FLIGHT COMPARTMENT CAN SPEAK TO ALL
PERSONS NEAR THE DANGEROUS AREA DURING ENGINE OPERATION.
OBEY ALL OF THE GROUND SAFETY PRECAUTIONS FOR THE ENGINES.
THE ENGINES CAN PULL PERSONS OR UNWANTED MATERIALS INTO THEM AND
CAUSE INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT.
Takeof f Thrust-Power Hazard Area
Figure 203 (Sheet 1)
6/29/2017
28
11.0 FEET
28.5-FOOT
RADIUS
45 INLET HAZARD AREA
A
NOTE:
____
THE DANGEROUS AREA IS SHOWN FOR THE LEFT ENGINE ONLY.
THE DANGEROUS AREA AROUND THE RIGHT ENGINE HAS THE SAME
DIMENSIONS. WHEN YOU OPERATE TWO ENGINES, THE DANGEROUS
AREA IS THE SUM OF THE LEFT AND RIGHT DANGEROUS AREAS.
Takeof f Thrust-Power Hazard Area
Figure 203 (Sheet 2)
6/29/2017
29
20 106-FOOT
RADIUS
LEFT ENGINE
HAZARD AREA
1
175 FEET
20 TWO-ENGINE
OPERATION
EXHAUST HAZARD AREA
WARNING:
_______
KEEP ALL PERSONS OUT OF THE DANGEROUS AREA DURING ENGINE
OPERATION. IF THE SURFACE WIND IS MORE THAN 25 KNOTS,
INCREASE THE DANGEROUS AREA AT THE ENGINE INLET BY 20 PERCENT.
CLEAN THE RAMP IF THERE IS SNOW, ICE, WATER, OIL OR OTHER
CONTAMINATION, OR MOVE THE AIRPLANE TO A LOCATION THAT IS CLEAN.
MAKE SURE THAT ALL PERSONS ARE SAFE BEFORE YOU START THE ENGINE.
MAKE SURE THE PERSONS IN THE FLIGHT COMPARTMENT CAN SPEAK TO ALL
PERSONS NEAR THE DANGEROUS AREA DURING ENGINE OPERATION.
OBEY ALL OF THE GROUND SAFETY PRECAUTIONS FOR THE ENGINES.
THE ENGINES CAN PULL PERSONS OR UNWANTED MATERIALS INTO THEM AND
CAUSE INJURIES TO PERSONS OR DAMAGE TO EQUIPMENT.
1
THE CONDITION FOR THE LEFT ENGINE IS SHOWN,
THE RIGHT ENGINE IS EQUIVALENT
Rev erse Minimum Idle-Power Hazard Area
Figure 204
6/29/2017
30
90 45 45 RELATIVE WIND
RECOMMENDED (30 KNOTS MAXIMUM
WIND VELOCITY)
1
PERMITTED (15 KNOTS MAXIMUM
WIND VELOCITY)
1
LIMITED UP TO THE FLIGHT IDLE
(5 KNOTS MAXIMUM WIND VELOCITY)
1
THE WIND VELOCITY IS FOR STABLE WIND CONDITIONS. DECREASE THE MAXIMUM WIND
LIMIT 5 KNOTS FOR GUSTY WIND CONDITIONS.
YOU CAN OPERATE THE APU DURING THE ENGINE OPERATION ON THE GROUND.
Pref erred Relativ e Wind Direction During an Engine Operation
Figure 205
6/29/2017
31
PERMISSIBLE DAILY NOISE EXPOSURE
777-200 SINGLE ENGINE OPERATION
4.0
3.5
(G
RO
UN
23
.4%
D
(B
2.0
ID
L
RE
E)
AK
AW
AY
)
2.5
23
.1%
N1
1.5
PP
RO
AC
H)
N1
62
.8%
(A
1.0
N1
TOTAL EXPOSURE TIME, HOURS PER DAY
3.0
0.5
.1%
N1
OW
(L
W
PO
ER
T
88
E
AK
F)
OF
KE O
9.2%
N1 9
L PO
(FUL
TA
WE R
FF)
0.0
0
50
100
150
200
250
300
RADIAL DISTANCE FROM OPERATING ENGINE, FEET
Single Engine Operation Noise Hazard
Figure 206
6/29/2017
32
350
90
85
80
75
PRESSURE IN THIS AREA IS ACCEPTABLE
FOR COLD CONDITION. TEMPERATURE RISE
SHOULD BE NOTED BEFORE HIGH THRUST
OPERATION.
70
65
INDICATED OIL PRESSURE - PSID
60
55
PRESSURE OUTSIDE THIS AREA
AFTER ENGINE OPERATION AT
CRUISE POWER OR GREATER FOR
AT LEAST FIVE MINUTES
IS CAUSE FOR
INVESTIGATION.
50
45
40
NORMAL OIL PRESSURE
ENVELOPE
35
30
25
20
1
15
10
OIL PRESSURE BELOW 10 PSID,
DO AN ENGINE SHUTDOWN.
5
0
55
60
65
70
75
80
85
90
95
100
105
110
115
120
N2 - PERCENT RPM
1
GROUND: FOR PRESSURE IN THIS AREA, THE CAUSE MUST BE CORRECTED BEFORE FLIGHT.
FLIGHT: FOR PRESSURE IN THIS AREA, THE TEMPERATURE AND PRESSURE MUST BE
MONITORED. SHUTDOWN ENGINE IF OIL TEMPERATURE IS MORE THAN THE LIMITS.
NOTE: DURING NEGATIVE G OPERATION CONDITIONS, OIL PRESSURE LESS THAN 10 PSID IS
____
PERMITTED FOR A MAXIMUM OF 15 SECONDS.
Oil Supply Pressure During Operation
Figure 207
6/29/2017
33
125

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