C97150
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH SIX LIGHT EAU ú

 71-00-50
 WITH AND WITHOUT SYNC LOCKS  ú CONFIG 7 ú C01 Page 155 ú Jul 15/94
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
PREREQUISITES
MAKE SURE THESE CIRCUIT BREAKERS ARE CLOSED: ENG 1 SYNC LOCK ENG 1 THR REV CONT SYS ENG 1 THR REV IND SYS ENG 2 SYNC LOCK ENG 2 SYNC LOCK-ALTN ENG 2 THR REV CONT SYS ENG 2 THR REV CONT SYS-ALTN ENG 2 THR REV IND SYS

MAKE SURE THE AIRPLANE IS IN THIS CONFIGURATION: ELECTRICAL POWER IS ON (AMM 24-22-00/201) HYDRAULIC POWER IS ON (AMM 29-15-00/201) ENGINE FIRE SWITCHES PUSHED IN THRUST REVERSER SLEEVES RETRACTED
REVERSER FAULT LIGHT
LOCKPIN INSTALLED IN THE THRUST REVERSER CONTROL ("VALVE DISAGREE")
VALVE (AMM 78-31-00/201) STAYS ON WHEN
WARNING:BE CAREFUL WHEN YOU DO WORK NEAR THE THRUST
REVERSER IS
REVERSER AND WHEN YOU OPERATE THE FLIGHT RETRACTED. REVERSER
DECK CONTROLS. INJURY TO PERSONS OR DAMAGE OPERATES NORMALLY. TO EQUIPMENT CAN OCCUR.

. ON THE ENGINE ACCESSORY UNIT, M528, PUSH THE RESET BUTTON TO ERASE THE FAULT INDICATIONS . DO THE OPERATIONAL TEST FOR THE THRUST REVERSER (AMM 78-31-00/501).
AIRPLANES WITH THRUST REVERSER SYNC LOCKS
Reverser Fault Light (VALVE DISAGREE) Stays On When Reverser is Retracted.
Reverser Operates Normally.
Figure 115 (Sheet 1)

C97151
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH SIX LIGHT EAU ú

 71-00-50
 WITH AND WITHOUT SYNC LOCKS  ú  CONFIG  7
 ú  C01  Page 156
 ú  Mar 15/99 

BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
FROM SHEET 1 (BLOCK 1)

23 REPLACE THE REVERSER CON-TROL VALVE MODULE, M1173 (M1174)(AMM 78-34-01/401).
NO

3 REMOVE PLUG D3052 (D3056)
24 REPLACE THE REVERSER CON-FROM THE REVERSER CONTROL TROL VALVE MODULE, M1173 VALVE MODULE, M1173 (M1174) (M1174)(AMM 78-34-01/401). (WDM 78-32-11,-21).
IS THERE CONTINUITY BETWEEN THE PLUG, PIN 7, AND GROUND?
YES
YES

12 CONNECT PLUG D3052 (D3056) 25 REPAIR THE SHORT CIRCUIT TO THE VALVE MODULE. REMOVE FROM CONNECTOR D1458A THE ENGINE ACCESSORY UNIT, (D1458B), PIN 24, TO THE VALVE M528, TO GAIN ACCESS TO CON-MODULE, CONNECTOR D3052 NECTOR D1458A (D1458B) (D3056), PIN 7 (WDM 78-32-11, (WDM 78-32-11,-21). -21).
IS THERE CONTINUITY BETWEEN PIN 24 AND GROUND?
NO
NO NO NO
2 DEPRESSURIZE THE A (B)
11 REMOVE PLUG D3054 (D3058)
HYDRAULIC SYSTEM. WAIT AT FROM THE REVERSER CONTROL
LEAST 30 SECONDS.  VALVE MODULE, M1173 (M1174).
DOES THE "VALVE DISAGREE" DOES THE VALVE "DISAGREE" LIGHT GO OFF? LIGHT GO OFF?

YES  YES

26 REPLACE THE ENGINE ACCESSORY UNIT, M528. (AMM 78-34-06/401).

Reverser Fault Light (VALVE DISAGREE) Stays On When Reverser is Retracted.
Reverser Operates Normally.
Figure 115 (Sheet 2)

C97152
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH SIX LIGHT EAU ú

 71-00-50
 WITH AND WITHOUT SYNC LOCKS  ú CONFIG 7 ú C01 Page 157 ú Jul 15/94
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
PREREQUISITES

REVERSER FAULT LIGHT ("SLEEVE DISAGREE") STAYS ON WHEN REVER-SER IS RETRACTED. REVERSER OPERATES NORMALLY.
NO

1 EXTEND AND RETRACT THE THRUST REVERSER SLEEVES
(AMM 78-31-00/201).
IS ONE SLEEVE SLOWER THAN THE OTHER BY 5 SECONDS OR MORE?
YES

MAKE SURE THESE CIRCUIT BREAKERS ARE CLOSED: ENG 1 SYNC LOCK
2 ENG 1 THR REV CONT SYS ENG 1 THR REV IND SYS ENG 2 SYNC LOCK
　
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