ENG 1 THR REV IND SYS
 ENG 2 SYNC LOCK
 ENG 2 SYNC LOCK-ALTN
 ENG 2 THR REV CONT SYS

Reverser Fault Lights (SLEEVE DISAGREE and RESTOW) Stay On When Reverser Is
Extended. Reverser Operates Normally.
Figure 125 (Sheet 1)

C97181
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH SIXTEEN LIGHT EAU ú

 71-00-50
 WITH AND WITHOUT SYNC LOCKS  ú CONFIG 7 ú C01 Page 176 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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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 1)
YES
YES

11 LOOK FOR HYDRAULIC LEAKS

22 REPAIR, REPLACE OR TIGHTEN BETWEEN THE TEE IN THE STRUT THE CONNECTIONS OR TUBING AS AND THE ACTUATORS ON THE SLOW NECESSARY. SIDE.

DO YOU SEE A LEAK? NO
YES12 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 FLEXSHAFTS. REPLACE FLEX SHAFT(S) (AMM 78-31-04/401).

Reverser Fault Lights (SLEEVE DISAGREE and RESTOW) Stay On When Reverser Is
Extended. Reverser Operates Normally.
Figure 125 (Sheet 2)

C97182
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH SIXTEEN LIGHT EAU ú

 71-00-50
 WITH AND WITHOUT SYNC LOCKS  ú CONFIG 7 ú C01 Page 177 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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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
MAKE SURE THE AIRPLANE IS IN THIS CONFIGURATION:
 HYDRAULIC POWER IS ON (AMM 29-15-00/201) "REVERSER UNLOCKED" ENGINE FIRE SWITCHES PUSHED IN THRUST REVERSER SLEEVES RETRACTED
LIGHT ON OR ON INTER-MITTENTLY IN FLIGHT
WARNING:
OR ON THE GROUND. "REVERSER" LIGHT DID NOT COME ON.
1 DO A CHECK OF THE SENSOR-TO-TARGET GAPS ON THE NOT
(RIGHT REVERSER HALF) (AMM 78-34-03/201). ARE THE GAPS IN THE ALLOW-ABLE LIMITS?
YES
22 REPLACE THE PROXIMITY SEN-SORS FOR THE APPLICABLE REVER-SER HALF (AMM 78-34-03/201).
DO THE SYSTEM TEST FOR THE THRUST REVERSER: NORMAL OPER-ATION TEST (AMM 78-31-00/501).
IF THE "REVERSER UNLOCKED" LIGHT DID NOT GO OFF, EXAMINETHE CIRCUIT FROM THE NOT STOWED PROXIMITY SENSORS TO THE EAU (WDM 78-31-11,-21).
REPAIR THE PROBLEMS THATYOU FIND.AIRPLANES WITH THRUST REVERSER SYNC LOCKS DO THE SYSTEM TEST FOR THE
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 ADJUST THE SENSOR-TO-TARGET GAPS ON THE APPLICABLE NOT STOWED PROXIMITY SENSOR (AMM 78-34-03/201).
DO THE SYSTEM TEST FOR THE THRUST REVERSER: NORMAL OPER-ATION TEST (AMM 78-31-00/501).
IF THE "REVERSER UNLOCKED"LIGHT DID NOT GO OFF, CONTINUE AT BLOCK 22.

THRUST REVERSER: NORMAL OPER-ATION TEST (AMM 78-31-00/501).
IF THE "REVERSER UNLOCKED"
LIGHT DID NOT GO OFF, REPLACE
THE EAU (AMM 78-34-06/401).
REVERSER UNLOCKED Light On or On Intermittently in Flight or on the Ground.
REVERSER Light Did Not Come On.
Figure 126

C97183
 EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH TWO OR SIX LIGHT EAU ú
　
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