(b)
If you cannot correct the problem, replace the engine (AMM 71-00-02/401).
S 816-078-C00
(2) Do the troubleshooting procedure if these conditions occur
(AMM 71-00-44/101):
(a)
Oil use shows a slow and continuous increase
(b)
Oil use increases suddenly
(c)
Oil use is more than 0.2 gallons for each hour
(0.75 liters/hour).
M. Hard Landings That Are More Than the Limits:
S 216-079-C00
(1) Visually examine these components for damage:
(a)
Inlet cowl, exhaust sleeve and exhaust nozzle and all the fasteners.
(b)
Abradable material on the fan inlet case (AMM 72-33-00/601).
(c)
The forward and aft engine mounts on the engine (AMM 71-21-00/601).
(d)
Accessory components attached for the engine.
(e)
All ducts, tubes, hoses and fittings (look for leaks, cracks or distortion).
(f)
The aft flange on the turbine frame (AMM 72-56-00/601).
S 216-080-C00
(2) Do the borescope inspection procedure for the 1st-, 3rd-, and 8th-stage HPC blades.
N. Engine Stall (Surge)
S 216-081-C00
(1)
Visually examine the fan rotor blades (AMM 72-31-02/601) and the abradable material (AMM 72-33-00/601).
(2)
Visually examine the exhaust area for metal particles.
S 216-082-C00
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. ú
72-00-00
ALL ú ú C03 Page 682P ú Mar 12/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
Engine Operations Above the Limits and High Engine Stress Inspection
_____________________________________________________________________
S 216-083-C00
(3) Do a borescope inspection of these components:
(a)
The 4th-stage of the booster blades
(b)
The 1st-, 3rd- and 8th-stage HPC blades
(c)
The HPT blades
(d)
The 1st-stage LPT blades.
S 816-084-C00
(4) Do the troubleshooting procedure to find and correct the cause of the engine stall (AMM 71-00-43/101).
O. High Vertical G Forces Applied to the Engine During In Plant
Transportation.
S 216-147-C00
CAUTION: PERSONNEL MUST OBEY THE INSTRUCTIONS TO TRANSPORT THE ENGINE AS
_______ GIVEN IN AMM 71-00-04/201. REFER ANY CHANGE TO CFMI FOR ENGINE FINAL STATUS. IF YOU DO NOT OBEY THIS PROCEDURE YOU CAN CAUSE DAMAGE TO THE ENGINE.
(1) Visually examine the surfaces of the engine and flange areas for damage such as buckling, deformation and cracks.
(a) Get more information from CFMI if the engine hits the ground.
S 986-086-C00
WARNING:_______BE CAREFUL WHEN YOU TURN THE FAN ROTOR. MAKE SURE YOU ARE IN A STABLE POSITION. ALSO, YOU MUST WEAR HEAVY PROTECTIVE GLOVES TO PREVENT DAMAGE TO YOUR HANDS. IF YOU DO NOT OBEY THESE INSTRUCTIONS, INJURIES TO PERSONS AND DAMAGE TO EQUIPMENT CAN OCCUR.
(2) Turn the fan rotor with your hand.
(a) If the bearings are rough, if there are unusual noises or if the rotor binds, replace the engine (AMM 71-00-02/401).
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