71-00-42
ALL ú ú C02 Page 124 ú Jul 15/98
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
PREREQUISITESNONE
FLAMEOUT WITH NO RESTART ATTEMPT DUE TO LOW WINDMILLING RPM OR NO N2 RPM
Flameout with Unsuccessful Restart due to Low Windmilling RPM or No N2 RPM
Figure 111
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71-00-42
ALL ú ú C02 Page 125 ú Nov 15/92
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
PREREQUISITES
ENGINE OPERATION
FLAMEOUT WITH NO RESTART ATTEMPT FOR NON-ENGINE RELATED REASONS
YES
1
VISUALLY EXAMINE ENGINE
INLET FOR FOD AND EXHAUST AREA
FOR METAL PARTICLES.
IS FOD OR METAL PARTICLES FOUND?
NO
YES
2 EXAMINE THE MAGNETIC CHIP DETECTORS (AMM 79-00-00/601).
ARE INDICATIONS OF INTER-NAL ENGINE/GEARBOX FAILURE FOUND?
31 REPAIR/REPLACE THE ENGINE
(AMM 71-00-02/401) AS
NECESSARY.
IF FOD IS FOUND, REFER TO BIRD STRIKE/FOD TROUBLE-SHOOTING (AMM 71-00-47/001).
DOES THE IMPELLER TURN? YES
SEE SHEET 2 (BLOCK 7)
Flameout with No Restart Attempt for Non-Engine Related Reasons Figure 112 (Sheet 1)
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ú C02 Page 126
ú Nov 15/97
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
FROM SHEET 1
(BLOCK 6)
YES
NO
7
MANUALLY TURN THE N2 ROTOR
39 REPLACE THE ENGINE
(AMM 72-00-00/201). (AMM 71-00-02/401).
REMOVE A BORESCOPE PLUG (S6 THRU S8) AND SEE IFTHE N2 ROTOR TURNS (AMM 72-00-00/601).
DOES THE N2 ROTOR TURN NORMALLY?
YES NO
8 DO A TEST OF THE AIRPLANE
FUEL FEED SYSTEM
(AMM 28-22-00/101).
IS THE OPERATION OK?
YES YES
9 EXAMINE THE ENGINE FUEL
FILTER CARTRIDGE
(AMM 73-11-02/601).
IS THERE ANY TRACE OF BRONZE IN THE FILTER?
NOYES
10 EXAMINE THE AIRPLANE AND
STRUT FOR FUEL SYSTEM LEAKS
(AMM 28-22-41/401).
ARE LEAKS FOUND?
NO YES
11 EXAMINE THE CDP TUBE 48 CLEAN/REPAIR/REPLACE THE
WITH THE TUBE DRAIN HOLES CDP TUBE AS NECESSARY.
FOR LEAKS, DAMAGE, OR BLOCKAGE
(AMM 71-00-59/101, FIG. 104).
ARE LEAKS, DAMAGE, OR BLOCKAGE FOUND?
NO SEE SHEET 3
(BLOCK 12)
Flameout with No Restart Attempt for Non-Engine Related Reasons Figure 112 (Sheet 2)
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
FROM SHEET 2 (BLOCK 11) NO
NO
NO
23 REPLACE THE MEC (AMM 73-21-01/401). CAN THE ENGINE BE TRIMMED WITH ENGINE PARAMETERS NORMAL?
YES
Flameout with No Restart Attempt for Non-Engine Related Reasons Figure 112 (Sheet 3)
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