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AMM 33-42-00-710-001 Operational Test of the Landing Lights AMM 33-42-11-000-001 Removal of the Landing Light 7LB (8LB) AMM 33-42-11-400-003 Installation of the Landing Light 7LB (8LB) ASM 33-42/01
 3. Fault Confirmation
__________________
 A. Do the operational test of the landing lights (Ref. AMM TASK 33-42-00-710-001).
 4. Fault Isolation
_______________
 A. If the test shows that the LANDING LIGHT 7LB (8LB) retracts but the light does not go off:
 - do a check for 115 VAC at the LANDING LIUGHT 7LB (8LB) connector A/L and A/K (Ref. ASM 33-42/01).
 (1) If there is 115 VAC:
 - replace the LANDING LIGHT 7LB (8LB) (Ref. AMM TASK 33-42-11-000-001) and (Ref. AMM TASK 33-42-11-400-003).
 B. Do the test as given in the Para. 3. A.
 5. Close-up
________
 A. Put the aircraft back to its initial configuration.

 LANDING LIGHTS - TASK SUPPORTING DATA
_____________________________________

 Landing Lights - 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 ∞∞33-42-00∞∞∞∞∞∞∞∞∞∞Page 302
 Feb 01/98 CES

 RUNWAY TURNOFF LIGHTS - FAULT ISOLATION PROCEDURES
__________________________________________________
 TASK 33-43-00-810-801
 Failure of the Right Runway Turn off Light
 1. Possible Causes
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 - LT-RUNWAY TURNOFF, R (3LC2)

 - wiring

 - RELAY-PWR SPLY, RWY TURN OFF LT (6LC)

 - C/B-LIGHTING/EXT LT/RWY TURN OFF/R (1LC2)

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
IPC 334308 AMM 33-43-00-710-001 Operational Test of the Runway Turnoff Lights AMM 33-43-11-000-001 Removal of the Runway Turnoff Light (3LC1, 3LC2) AMM 33-43-11-400-001 Installation of the Runway Turnoff Light (3LC1, 3LC2) ASM 33-43/01
 3. Fault Confirmation
__________________
 A. Test Do the operational test of the runway turn off lights (Ref. AMM TASK 33-43-00-710-001).
 4. Fault Isolation
_______________
 A. If during the operational test when you set the EXT LT/RWY TURN OFF switch (2LC) to ON, the right turn off light does not operate correctly:
 - do a check of the circuit breaker (1LC2) status.
 (1) If the circuit breaker is closed:
 - do a continuity check between the circuit breaker (1LC2) and the right runway turn off light (3LC2) pin A/A.
 (a) If there is continuity:
 - do a check for 115VAC between the pin A/A and A/B of the right runway turn off light (3LC2).
 1 If there is 115VAC:
_
 - replace the LT-RUNWAY TURNOFF, R (3LC2) (Ref. AMM TASK 33-43-11-000-001) and (Ref. AMM TASK 33-43-11-400-001),
 「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 ∞∞33-43-00∞∞∞∞∞∞∞∞∞∞Page 201
 Feb 01/98 CES 2 If there is no 115VAC:

_
 - do a check and repair the wiring from the right runway turn off light (3LC2) pin A/B to the ground terminal (Ref. ASM 33-43/01).
 (b) If there is no continuity:
 - replace the RELAY-PWR SPLY, RWY TURN OFF LT (6LC) (Ref. IPC 334308).
 1 If the fault continues:
_
 - do a check for 115VAC at the power supply relay (6LC) pin A/A2.
 a If there is 115VAC:
_
 - repair the wiring between the power supply relay (6LC) pin A/A1 and the pin A/A of the right runway turn off light (3LC2) (Ref. ASM 33-43/01).
 b If there is no 115VAC:
_
 - replace the C/B-LIGHTING/EXT LT/RWY TURN OFF/R (1LC2) . If the fault continues:
 - repair the wiring between the power supply relay (6LC) pin A/A2 and the circuit breaker (1LC2) (Ref. ASM 33-43/01).
 (2) If the circuit breaker is open:
 - close the circuit breaker.
 (a) If the circuit breaker trips:
 - replace the LT-RUNWAY TURNOFF, R (3LC2) (Ref. AMM TASK 33-43-11-000-001) and (Ref. AMM TASK 33-43-11-400-001).
 1 If the fault continues:
_
 - do a check for a short to ground at the wiring between the right runway turn off light (3LC2) pin A/A and the circuit breaker (1LC2) (Ref. ASM 33-43/01).
 a If there is a short to ground:
_ - repair the related wiring.
 b If there is no short to ground:
　
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