YES
1 VISUALLY CHECK PNEUMATIC SYSTEM DUCTING, HPT CLEARANCE
CONTROL COOLING AIR TUBING, 
AND HPT-LPT COOLING AIR TUBES 
FOR SUBSTANTIAL LEAKAGE 
SOURCES (71-00-58, FIG. 107). 
ARE SUBSTANTIAL LEAKAGE SOURCES FOUND?
COMPONENTS AS REQUIRED. 
High EGT/Takeoff Thrust EGT Limited - High Nacelle Temperature 
Figure 105
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL //////////////////////// 
PREREQUISITES NONE
AUTO DECEL
1 VISUALLY CHECK ENGINE 
INLET FOR FOD AND EXHAUST AREA 
FOR METAL PARTICLES.
 IS FOD OR METAL PARTICLES FOUND? 
YES 
21 REPAIR/REPLACE ENGINE
(71-00-02) AS REQUIRED.
 IF FOD FOUND, REFER TO BIRD STRIKE/FOD TROUBLE SHOOTING (71-00-47).
Auto Decel 
Figure 106
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL //////////////////////// 
PREREQUISITES NONE 
FLAMEOUT WITH UNSUCCESSFUL RESTARTWITH FUEL FLOW INDICATION
INLET FOR FOD AND EXHAUST 
AREA FOR METAL PARTICLES. 
IS FOD OR METAL PARTICLES 
FOUND?
NO
YES
3 EXAMINE THE MAGNETIC CHIP 
DETECTORS (AMM 79-00-00/601).
ARE INDICATIONS OF INTER-NAL ENGINE/GEARBOX FAILURE 
FOUND?
NO
YES
5 EXAMINE THE AIRPLANE FUEL 
SYSTEM FOR WATER 
(AMM 12-11-00/301).
 IS WATER FOUND? 
NO 
NO
6 EXAMINE THAT FUEL PUMP 37 REPLACE THE FUEL PUMP IMPELLER TURNS (AMM 71-00-59/101, FIG. 102).
DOES IMPELLER TURN? 
YES 
NO
9 EXAMINE THE AIRPLANE FUEL 
FEED SYSTEM (AMM 28-22-00/ 
101). 
IS THE OPERATION OK?
YES 
YES
11 EXAMINE THE ENGINE FUEL 
FILTER CARTRIDGE 
(AMM 73-11-02/601).
IS THERE ANY TRACE OF 
BRONZE IN FILTER?
NO 
YES
13 EXAMINE THE AIRPLANE AND 
STRUT FOR FUEL SYSTEM LEAKS 
(AMM 28-22-41/401).
 ARE LEAKS FOUND?
NO 
SEE SHEET 2 (BLOCK 15) (AMM 71-00-02/401) AS NECESSARY. 
IF FOD IS FOUND, REFER TO BIRD STRIKE/FOD TROUBLE-SHOOTING (AMM 71-00-47/001).
Flameout with Unsuccessful Restart with Fuel Flow Indication 
Figure 107 (Sheet 1)
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 ú  Mar 15/98 
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. 
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CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL //////////////////////// 
FROM SHEET 1 (BLOCK 13)
INCLUDING TUBE DRAIN HOLES FOR LEAKS, DAMAGE, OR BLOCKAGE (AMM 71-00-59/101, FIG. 104). 
ARE LEAKS, DAMAGE, OR BLOCKAGE FOUND? 
CDP TUBE AS REQUIRED. 
NO
YES
17 BORESCOPE INSPECT BOOSTER, HPC 3RD-,5TH-, AND 9TH-STAGE BLADES COMBUSTION CHAMBER, 
HPT BLADES AND 1ST-STAGE LPT 
BLADES (AMM 72-00-00/601). 
IS DAMAGE BEYOND ACCEP-
TABLE LIMITS FOUND?
NO 
NO
19 REPLACE THE MEC 
(AMM 73-21-01/401). 
CAN ENGINE BE TRIMMED WITH 
NORMAL PARAMETERS?
Flameout with Unsuccessful Restart with Fuel Flow Indication 
Figure 107 (Sheet 2)
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