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the engine thrust ratings to the aircraft model.
Aircraft Models
The normal models are 737-600, 700, 800, and 900. Some other
variations can be 737-700 IGW (increased gross weight), and
737-700 BBJ (Boeing business jet).
POWER PLANT - SPECIFICATIONS
EFFECTIVITY
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CFM56 ENGINES (CFM56-7) 737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
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POWER PLANT - SPECIFICATIONS
POWER PLANT - SPECIFICATIONS
EFFECTIVITY
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CFM56 ENGINES (CFM56-7) 737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
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General
It is dangerous to work around engines. Use the entry/exit
corridor when the engine is in operation. Also, stay out of the
inlet and exhaust areas when the engine is in operation.
CAUTION: PERFORM FOD WALK IN FRONT OF AND AROUND
ENGINE INGESTION AREA PRIOR TO ENGINE
START.
These are the hazards around an engine in operation:
* Inlet suction
* Exhaust heat
* Exhaust velocity
* Engine noise.
Inlet Suction
Engine inlet suction can pull people and large objects into the
engine. At idle power, the inlet hazard area is a 10 ft (3.1 m)
radius around the inlet.
WARNING: IF THE WIND IS OVER 25 KNOTS, INCREASE THE
INLET HAZARD AREA BY 20 PERCENT.
Exhaust Heat
The engine exhaust is very hot for long distances behind the
engine. This can cause damage to personnel and equipment.
Exhaust Velocity
Exhaust velocity is very high for long distances behind the
engine. This can cause damage to personnel and equipment.
Engine Noise
Engine noise can cause temporary and permanent loss of
hearing. You must wear ear protection when near an engine in
operation.
Engine Entry/Exit Corridor
Engine entry corridors are between the inlet hazard areas and
the exhaust hazard areas. You should go near an engine in
operation only when:
* Engine is at idle
* You can speak with people in the flight compartment.
For additional safety, wear a safety harness when the engine is
in operation.
Training Information Point
The beacon light must be on while the engines are on.
POWER PLANT - ENGINE HAZARDS
EFFECTIVITY
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POWER PLANT - ENGINE HAZARDS
POWER PLANT - ENGINE HAZARDS
EFFECTIVITY
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General
There is a forward and aft engine mount. Each engine mount
attaches the engine to the strut. The forward engine mount
attaches to the fan frame. The aft engine mount attaches to the
turbine frame.
POWER PLANT - ENGINE MOUNTS
EFFECTIVITY
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POWER PLANT - ENGINE MOUNTS
POWER PLANT - ENGINE MOUNTS
EFFECTIVITY
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CFM56 ENGINES (CFM56-7) 737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
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General
The engine electrical harnesses connect at the fan cowl support
beam.
The electrical harnesses that connect on the right side of the fan
cowl support beam come from these components:
* Electronic engine control
* N1 speed sensor
* Oil tank (oil quantity transmitter)
* Inlet cowl thermal anti-ice valve
* Ignition exciters
* Fan frame compressor case vibration (FFCCV) sensor
* Bleed air regulator
* Ground wing thermal anti-ice solenoid valve
* Overheat/fire detector loop A and B.
The electrical harnesses that connect on the left side of the fan
cowl support beam come from these components:
* Start valve
* N2 speed sensor
* Integrated drive generator (IDG)
* Hydraulic system engine-driven pump
* Hydromechanical unit (HMU).
POWER PLANT - ELECTRICAL HARNESSES
　
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