737-300 400 500 AMM 飞机维护手册 仪表 INSTRUMENTS(22)

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 WARNING: TO AVOID INJURY TO PERSONNEL, STAY CLEAR OF LEADING EDGE
_______ SLATS, WHICH CAN MOVE AUTOMATICALLY (UNLESS OTHERWISE INHIBITED) DURING MAINTENANCE WHEN EITHER HYDRAULIC SYSTEM IS PRESSURIZED, AND TRAILING EDGE FLAPS ARE IN POSITION 1, 2, OR 5, AND NOSE OR MAIN LANDING GEAR AIR/GROUND RELAYS SENSE AN AIRBORNE CONDITION.
 F.  If AIR/GND relay (R277) is to be replaced, open AIR/GND RELAY & LIGHTS circuit breaker on P6-2 circuit breaker panel, to remove power from the relay coil. Removing power from relay coil places the relay in airborne condition.
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 31-24-01
 ú ú 02 Page 101 ú Nov 15/90
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
PREREQUISITES MAKE SURE THESE CIRCUIT BREAKERS ARE CLOSED: FLIGHT RECORDER AC FLIGHT RECORDER DC POS SENSORS
MAKE SURE THE AIRPLANE IS IN THIS CONFIGURATION: ELECTRICAL POWER IS ON (AMM 24-22-00/201)
FLIGHT RECORDER BITE AND ACTIVATION TEST
NO
YES

1 DO THIS TASK:
PREPARE FOR

30 PUT THE "TEST-NORMAL"

TROUBLESHOOTING.
PUT THE "TEST-NORMAL" SWITCH ON THE FLIGHT RECORDERTEST MODULE TO THE "TEST" POSITION.
DID THE "OFF" LIGHT ON THE TEST MODULE GO OUT?
SWITCH IN THE "NORMAL" POSITION.
 PUSH AND HOLD THE GROUND SENSING TEST SWITCH ON THE E11 PANEL.
DID THE "OFF" LIGHT GO OUT?

YES
NO

YES NO NO
4 OPEN AND CLOSE THE FLIGHT

64 THESE CODES SHOW INTER-RECORDER AC CIRCUIT BREAKER.

MITTENT FAULTS IN FAULT PUSH AND HOLD THE "READ"
HISTORY. BUTTON ON THE FDAU.
 IF THE "DFDAU FAIL" LIGHT
YES
THE "FAIL", "CAUTION", AND
IS ON, REPLACE THE FDAU "DFDR FAIL" LIGHTS ON THE FDAU (AMM 31-24-22/401). WILL COME ON MOMENTARILY AND
IF THE "DFDAU FAIL" LIGHT THE "STATUS" DISPLAY WILL SHOW IS OFF, CONTINUE THE TEST FROM FFF THEN 888. AFTER APPROXI-BLOCK 5. MATELY 4 SECONDS THE "FAIL", "CAUTION", AND "DFDR" LIGHTS WILL GO OUT.
65 THESE CODES WILL SHOW IF
DID THE "STATUS" DISPLAY THE FLIGHT DATA RECORDER
CHANGE TO 000?
IS NOT OPERATING. MAKE SURE THE "TEST-NORMAL" SWITCH IS IN

YES THE "TEST" POSITION.
IF THE PROBLEM CONTINUES, SEE SHEET 2 REPLACE THE FLIGHT DATA (BLOCK 5) RECORDER (AMM 31-24-11/401).
Flight Recorder BITE and Activation Test
Figure 101 (Sheet 1)

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 31-24-01
 ú ú 09 Page 102 ú Nov 15/95
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A

737-300/400/500
MAINTENANCE MANUAL

FROM SHEET 1
(BLOCK 4)
YES

NO NO

5
RELEASE THE "READ"

66 REPLACE THE FLIGHT
BUTTON. PUT THE "TEST-NORMAL"

RECORDER TEST MODULE SWITCH TO THE "NORMAL"
(AMM 31-24-12/401).
YES
POSITION. PUSH AND HOLD THE
IF THE PROBLEM CONTINUES, GROUND SENSING TEST SWITCH ON REPLACE THE AIR/GROUND RELAY, THE E11 PANEL. R277, ON THE E11 PANEL
DID THE "OFF LIGHT GO OUT? (WDM 32-31-01). IF THE PROBLEM CONTINUES,
YES EXAMINE THE AIR/GROUND RELAY TO THE FLIGHT RECORDER TEST MODULE (WDM 31-31-01).
REPAIR THE PROBLEMS THAT YOU FIND.

NO

6 RELEASE THE GROUND SENSING

67 REPLACE THE ENGINE
TEST SWITCH. THE "OFF" LIGHT

ACCESSORY UNIT (AMM 78-34-06/WILL COME ON. OPEN THE FLIGHT 401).RECORDER DC CIRCUIT BREAKER ON IF THE PROBLEM CONTINUES, THE P18 PANEL. CONNECT A
EXAMINE THE CIRCUIT FROM OIL JUMPER FROM PINS 1 AND 2 OF
PRESSURE SWITCH NO. 1 TO THE THE OIL PRESSURE SWITCH PLUG
FLIGHT RECORDER TEST MODULE (D752, ON THE LEFT SIDE OF THE(WDM 31-31-01; 78-32-11). ENGINE) TO THE NO. 1 ENGINE. REPAIR THE PROBLEMS THAT CLOSE THE FLIGHT RECORDER
YOU FIND. DC CIRCUIT BREAKER ON THE P18 PANEL. DID THE "OFF" LIGHT GO OUT?

YES SEE SHEET 3
(BLOCK 7)

Flight Recorder BITE and Activation Test
Figure 102 (Sheet 2)

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