TASK 33-51-00-810-845
Failure of the Crossaisle Lights (Floor Proximity Emergency Escape Path Marking System) controlled by EPSU 13WL
1. Possible Causes
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- WALL-MOUNTED EMERGENCY-EXIT-MARKER (90WL5)
- WALL-MOUNTED EMERGENCY-EXIT-MARKER (90WL6)
- SEAT/WALL-MOUNTED EMERGENCY-EXIT LOCATION-LIGHT (361WL3)
- wiring
2. Job Set-up Information
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A. Referenced Information
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REFERENCE DESIGNATION
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AMM 33-51-00-710-007 Operational Test of the Emergency Lighting in the
Cabin by 'LIGHT EMER' Pushbutton Switch AMM 33-51-00-710-010 Operational Test of the Emergency Lights via MCDU AMM 33-51-13-000-001 Removal of the Cabin Wall-Mounted
Emergency-Exit-Markers AMM 33-51-13-400-001 Installation of the Cabin Wall-Mounted Emergency-Exit-Markers AMM 33-51-18-000-001 Removal of the Seat/Wall-Mounted Emergency-Exit Location-Light AMM 33-51-18-400-001 Installation of the Seat/Wall-Mounted Emergency-Exit
Location-Light
ASM 33-51/04
ASM 33-51/04
3. Fault Confirmation
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A. Do the operational test of the emergency lights via MCDU (Ref. AMM TASK 33-51-00-710-010).
4. Fault Isolation
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A. If the test gives a different maintenance message, do the trouble shooting procedure related to the maintenance message.
B. If the operational test gives the maintenance message:
(1) FPEEPMS CROSSAISLE LT/EPSU(13WL)AFT L:
- do the Operational Test of the Emergency Lighting in the Cabin by Pushbutton Switch (Ref. AMM TASK 33-51-00-710-007).
- during the test monitor the WALL-MOUNTED EMERGENCY-EXIT-MARKER (90WL5), WALL-MOUNTED EMERGENCY-EXIT-MARKER (90WL6), and the
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 106-149, 301-399, 401-499, ∞∞33-51-00∞∞∞∞∞∞∞∞∞∞Page A253
Aug 01/05 CES SEAT/WALL-MOUNTED EMERGENCY-EXIT LOCATION-LIGHT (361WL3) (Ref. ASM 33-51/04).
- replace the WALL-MOUNTED EMERGENCY-EXIT-MARKER (90WL5) (Ref. AMM TASK 33-51-13-000-001) and (Ref. AMM TASK 33-51-13-400-001) if not illuminated.
- replace the WALL-MOUNTED EMERGENCY-EXIT-MARKER (90WL6) (Ref. AMM TASK 33-51-13-000-001) and (Ref. AMM TASK 33-51-13-400-001) if not illuminated.
- replace the SEAT/WALL-MOUNTED EMERGENCY-EXIT LOCATION-LIGHT (361WL3) (Ref. AMM TASK 33-51-18-000-001) and (Ref. AMM TASK 33-51-18-400-001) if not illuminated (Ref. ASM 33-51/04).
(a) If the fault continues and:
1_ The WALL-MOUNTED EMERGENCY-EXIT-MARKER (90WL5) is not
illuminated:
- do a check and repair the wiring between:
lamp module 90WL5 pin 3 and EPSU 13WL pin -H.
lamp module 90WL5 pin 1 and GND (Ref. ASM 33-51/04).
2_ The WALL-MOUNTED EMERGENCY-EXIT-MARKER (90WL6) is not
illuminated:
- do a check and repair the wiring between:
the lamp module 91WL6 pin 3 and EPSU 13WL pin -H.
the lamp module 91WL6 pin 1 and GND (Ref. ASM 33-51/04).
3_ The SEAT/WALL-MOUNTED EMERGENCY-EXIT LOCATION-LIGHT (361WL3)
is not illuminated:
- do a check and repair the wiring between:
the lamp module 361WL3 pin 3 and EPSU 13WL pin -H.
the lamp module 361WL3 pin 1 and GND (Ref. ASM 33-51/04).
C. Do the test given in para. 3.
5. Close-up
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本文链接地址：A320 Trouble Shooting Manual 排故手册 LIGHTS 灯光(136)
