YES
1 EXTEND THE THRUST REVERSER SLEEVES.
DO THE THRUST REVERSER DEACTIVATION PROCEDURE(AMM 78-31-00/201).
WITH THE REVERSE THRUST LEVER IN THE REVERSE IDLEPOSITION, PUSH THE APPLICABLE "T/R RESET" BUTTON ON THE ENGINE ACCESSORY UNIT, M528.
OPEN THE CIRCUIT BREAKER, "THR REV CONT SYS".
DISCONNECT CONNECTOR D3054 (D3058) FROM THE CONTROL VALVE MODULE, M1173 (M1174) (WDM 78-31-11,-21).
CLOSE THE CIRCUIT BREAKER, "THR REV CONT SYS".
DOES THE "REVERSER" LIGHT COME ON?
NO
SEE SHEET 2 (BLOCK 3)
CFM56 ENGINES
737-300/400/500/ /MAINTENANCE MANUAL ////////////////////////
PREREQUISITES
MAKE SURE THESE CIRCUIT BREAKERS ARE CLOSED:
ENG 1 THR REV CONT SYS
ENG 1 THR REV IND SYS
ENG 1 SYNC LOCK
ENG 2 SYNC LOCK
ENG 2 SYNC LOCK-ALTN
2 ENG 2 THR REV CONT SYS-ALTN
2
ENG 2 THR REV CONT SYS
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 ARE PUSHED IN
THRUST REVERSER SLEEVES ARE RETRACTED
_______BE CAREFUL WHEN YOU DO WORK NEAR THE THRUST
WARNING: REVERSER AND WHEN YOU OPERATE THE FLIGHT DECK CONTROLS. INJURY TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR.
22 REPLACE THE ENGINE ACCES-SORY UNIT, M528 (AMM 78-34-06/ 401).
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).
2 AIRPLANES WITH THRUST REVERSER SYNC LOCKS
REVERSER Fault Light Comes On When Reverser is Extended.
Reverser Operation is Normal
Figure 121 (Sheet 1)
C97174
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH TWO LIGHT EAU ú
71-00-50
WITH AND WITHOUT SYNC LOCKS ú CONFIG 7
ú C01 Page 169
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.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)
NO YES YES
3 CONNECT THE PLUG TO MODULE
11 EXAMINE BETWEEN THE TEE IN
M1173 (M1174). STRUT AND THE ACTUATORS ON THE
DO THE ACTIVATION PROCE-SLOW SIDE FOR HYDRAULIC LEAKS.DURE FOR THE THRUST REVERSER DO YOU SEE LEAKAGE? SYSTEM FOR GROUND MAINTENANCE
NO
(AMM 78-31-00/201). RETRACT AND EXTEND THE YES
THRUST REVERSER (AMM 78-31-00/
12 EXTEND THE THRUST REVERSER
24 REMOVE THE FOREIGN 201). SLEEVES. OBJECTS.
IS ONE SLEEVE SLOWER THAN DO THE DEACTIVATION PROCE-REPAIR OR REPLACE THE THE OTHER BY 5 SECONDS ORDURE FOR THE THRUST REVERSER THRUST REVERSER HALF MORE? SYSTEM FOR GROUND MAINTENANCE(AMM 78-31-01/401).
(AMM 78-31-00/201).
NO
EXAMINE THE THRUST REVER-
SER FOR FOREIGN OBJECTS AND
SEE SHEET 3 JAMMED TRACKS AND SLIDERS.
(BLOCK 4) DO YOU SEE FOREIGN OBJECTS
OR JAMMED TRACKS AND SLIDERS?
NO
YES
13 EXAMINE THE REVERSER ACTU-
25 REPAIR OR REPLACE THE ATORS FOR BINDING.ACTUATORS OR ATTACHMENT MAKE SURE THAT THE ACTUA-(AMM 78-31-03/401). TORS ARE ATTACHED TO THE TORQUE BOX AND SLEEVE.
ARE THE ACTUATORS OK?
LOOK FOR BROKEN FLEX SHAFTS.
REPLACE THE FLEX SHAFT(S), IF NECESSARY (AMM 78-31-04/ 401).
REVERSER Fault Light Comes On When Reverser is Extended.
Reverser Operation is Normal
Figure 121 (Sheet 2)
C97175
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH TWO LIGHT EAU ú
71-00-50
WITH AND WITHOUT SYNC LOCKS ú CONFIG 7 ú C01 Page 170 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 2 (BLOCK 3)
NO
NO
YES YES
14 REPLACE THE ENGINE ACCES-
28 REPLACE THE REVERSER CON-SORY UNIT, M528 (AMM 78-34-06/ TROL VALVE MODULE, M1173 401). (M1174)(AMM 78-34-01/401).
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