3. Fault Confirmation
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A. Make sure that this(these) circuit breaker(s) is(are) closed:
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------121VU HYDRAULIC/LGCIU/SYS2 2GA Q35 121VU HYDRAULIC/LGCIU/SYS1/GRND SPLY 52GA Q34 122VU LIGHTING/EXT LT/BEACON/UPPER 1LV U06 122VU LIGHTING/EXT LT/BEACON/LOWER 5LV U03 122VU LIGHTING/WING/STROBE 10LV V05
B. Do the operational test of the Anti-Collision / Strobe Lighting (Ref. AMM TASK 33-48-00-710-002).
4. Fault Isolation
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A. If the test confirms the fault when during the test the switch LT-STROBE SW 11LV is in the OFF position:
- make sure that on the overhead panel 25VU the switch LT-STROBE SW 11LV is in the OFF position for the next step.
- do a check for approximately 115 VAC at the switch LT- STROBE SW 11LV, connector 2A (Ref. ASM 33-48/01).
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞33-48-00∞∞∞∞∞∞∞∞∞∞Page 210
May 01/04 CES (1) If there is approximately 115 VAC:
- open, safety and tag this(these) circuit breaker(s): CB 10LV.
- replace the switch LT-STROBE SW 11LV on panel 25VU.
- remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): CB 10LV.
(2) If there is no 115 VAC:
- open, safety and tag this(these) circuit breaker(s): CB 10LV.
- replace the PWR SPLY-RELAY 12LV on panel 103VU.
- remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): CB 10LV.
B. If the test confirms the fault only when the switch LT-STROBE SW 11LV is in the AUTO position:
- make sure that on the overhead panel 25VU the switch LT-STROBE SW 11LV is in the AUTO position for the next step.
(1) If the fault continues:
- open, safety and tag this(these) circuit breaker(s): CB 2GA CB 10LV.
- do a check and repair as necessary the wiring between: the LDG SIGNAL-RELAY 13LV connector Z and ground (Ref. ASM 33-48/01).
- remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): CB 2GA CB 10LV.
(2) If the fault continues:
- do a check for approximately 28 VDC at the LDG SIGNAL-RELAY 13LV, connector X (Ref. ASM 33-48/01).
(a) If there is approximately 28 VDC:
- open, safety and tag this(these) circuit breaker(s): CB 2GA CB 10LV.
- replace the LGD SIGNAL-RELAY 13LV on panel 103VU.
- remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s): CB 2GA CB 10LV.
(b) If there is no 28 VDC:
- do the trouble shooting procedure for a fault in the LGCIU-2 5GA2 or the related circuits (Ref. TASK 32-31-00-810-802) (Ref. ASM 32-62/02) (Ref. ASM 32-31/04) (Ref. ASM 32-31/06).
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞33-48-00∞∞∞∞∞∞∞∞∞∞Page 211
Feb 01/98 CES
C. Do the test as given in the Para. 3.A .
5. Close-up
________
A. Put the aircraft back to its initial configuration.
ANTI-COLLISION/STROBE LIGHTING - TASK SUPPORTING DATA
_____________________________________________________
Anti-Collision/Strobe Lighting - Block Diagram
Figure 301
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞33-48-00∞∞∞∞∞∞∞∞∞∞Page 302
Feb 01/98 CES
WING AND ENGINE SCAN LIGHTING - FAULT ISOLATION PROCEDURES
__________________________________________________________
TASK 33-49-00-810-801
Failure of the Right Wing and Engine Scan Lighting
1. Possible Causes
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- LT-WING & ENG SCAN, R (4LX)
- wiring
- SW EXT LT/WING (2LX)
- C/B-LIGHTING/EXT LT/WING/AND ENG SCAN/R (1LX)
2. Job Set-up Information
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A. Referenced Information
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REFERENCE DESIGNATION
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IPC 334908
AMM 33-49-00-710-001 Operational Test of the Wing and Engine Scan Lights
AMM 33-49-11-000-001 Removal of the Wing and Engine Scan Light (3LX, 4LX)
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