DOES THE "REVERSER" FAULT INSTALL THE ORIGINAL LIGHT COME ON?ACCESSORY UNIT.

NO
27 REPAIR THE CIRCUIT FROM THE CONNECTORS AS NECESSARY (WDM 78-31-11,-21).

REVERSER Fault Light Comes On When Reverser is Extended.
Reverser Operation is Normal
Figure 121 (Sheet 3)

 C97176
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH TWO LIGHT EAU ú

 71-00-50
 WITH AND WITHOUT SYNC LOCKS  ú CONFIG 7 ú C01 Page 171 ú Jul 15/95
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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
2 ENG 1 THR REV CONT SYS ENG 1 THR REV IND SYS ENG 2 SYNC LOCK
2 ENG 2 SYNC LOCK-ALTN
2 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
WARNING:BE CAREFUL WHEN YOU DO WORK NEAR THE THRUST REVERSER AND WHEN YOU OPERATE THE FLIGHT DECK CONTROLS. INJURY TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR.
21 REPLACE THE ENGINE ACCES-SORY UNIT, M528 (AMM 78-34-06/ 401).

YES
11 LOOK FOR HYDRAULIC LEAKS

BETWEEN THE TEE IN THE STRUT
AND THE ACTUATORS ON THE SLOW
SIDE.
DO YOU SEE A LEAK?

NO
SEE SHEET 2 (BLOCK 12) 22 REPAIR, REPLACE OR TIGHTEN THE CONNECTIONS OR TUBING ASNECESSARY.
1

DO THESE STEPS TO MAKE SURE THE SYSTEM IS SERVICEABLE:
. 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 Lights (SLEEVE DISAGREE and RESTOW) Come On
When Reverser is Extended. Reverser Operates Normally.
Figure 122 (Sheet 1)

C97177
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH SIX LIGHT EAU ú

 71-00-50
 WITH AND WITHOUT SYNC LOCKS  ú  CONFIG  7
 ú  C01  Page 172
 ú  Jul 15/95 

BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
////////////////////////A / /
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
FROM SHEET 1 (BLOCK 11)
NO
YES

12 EXTEND THE THRUST REVERSER

23 REMOVE THE FOREIGN SLEEVES (AMM 78-31-00/201). OBJECTS.
DO THE DEACTIVATION PROCE-REPAIR AS NECESSARY, OR
DURE FOR THE THRUST REVERSER REPLACE THE THRUST REVERSER
SYSTEM FOR GROUND MAINTENANCE HALF (AMM 78-31-01/401). (AMM 78-31-00/201).

 LOOK FOR FOREIGN OBJECTS THAT COULD JAM THE TRACKS AND
SLIDERS. DO YOU SEE FOREIGN
OBJECTS?
NO
YES
13 LOOK AT THE REVERSER 24 REPAIR OR REPLACE THE
ACTUATORS FOR EVIDENCE OF ACTUATORS OR ATTACHMENT
BINDING.  (AMM 78-31-03/401).

MAKE SURE THAT THE
ACTUATORS ARE ATTACHED TO
THE TORQUE BOX AND SLEEVE.
 ARE THE ACTUATORS OK?NO

25 LOOK FOR BROKEN FLEX SHAFTS. REPLACE FLEX SHAFT(S) (AMM 78-31-04/401).

Reverser Fault Lights (SLEEVE DISAGREE and RESTOW) Come On
When Reverser is Extended. Reverser Operates Normally.
Figure 122 (Sheet 2)

 C97178
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH SIX LIGHT EAU ú

 71-00-50
 WITH AND WITHOUT SYNC LOCKS  ú CONFIG 7 ú C01 Page 173 ú Jul 15/95
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
　
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