(b) If the fault continues:

 - do a check of the XFMR-TAIL NAVIGATION LIGHT (13LA) and replace it if necessary (Ref. AMM TASK 33-41-16-000-001) and (Ref. AMM TASK 33-41-16-400-001).

 (c) If the fault continues:

 - do a check and repair the wiring between: LT-NAVIGATION, TAIL (15LA) connector A/4 and XFMR-TAIL NAVIGATION LIGHT (13LA) connector A/4, XFMR-TAIL NAVIGATION LIGHT (13LA) connector A/4 and RELAY (7LA) connector B/1,
 「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 ∞∞33-41-00∞∞∞∞∞∞∞∞∞∞Page 203
 Feb 01/98 CES

 LT-NAVIGATION, TAIL (15LA) connector A/5 and XFMR-TAIL
 NAVIGATION LIGHT (13LA) connector A/5,
 XFMR-TAIL NAVIGATION LIGHT (13LA) connector A/5 and GND (Ref.
 ASM 33-41/01).

 (2) If the LT-NAVIGATION, L WING TIP (9LA) does not come on, but one or more navigation lights come on:

 - replace the related lamp.
 (a) If the fault continues:

 - do a check of the LT-NAVIGATION, L WING TIP (9LA) and replace it if necessary (Ref. AMM TASK 33-41-11-000-001) and (Ref. AMM TASK 33-41-11-400-001).

 (b) If the fault continues:

 - do a check and repair the wiring between: LT-NAVIGATION, L WING TIP (9LA) connector A/D and RELAY (7LA) connector B/1 LT-NAVIGATION, L WING TIP (9LA) connector A/E and GND (Ref. ASM 33-41/01).

 (3) If the LT-NAVIGATION, R WING TIP (10LA) does not come on, but one or more navigation lights come on:

 - replace the related lamp.
 (a) If the fault continues:

 - do a check of the LT-NAVIGATION, R WING TIP (10LA) and replace it if necessary (Ref. AMM TASK 33-41-11-000-001) and (Ref. AMM TASK 33-41-11-400-001).

 (b) If the fault continues:

 - do a check and repair the wiring between: LT-NAVIGATION, R WING TIP (10LA) connector A/D and RELAY (7LA) connector A/1, LT-NAVIGATION, R WING TIP (10LA) connector A/E and GND (Ref. ASM 33-41/01).

 (4) If no navigation lights come on:

 - do a check of the RELAY (7LA) and replace it if necessary.
 (a) If the fault continues:

 - do a check of the SWITCH (3LA) and replace it if necessary.

 (b) If the fault continues:

 - do a check and repair the wiring between: RELAY (7LA) connector A/2 and CB 2LA, RELAY (7LA) connector B/2 and CB 2LA, RELAY (7LA) connector X/1 and CB 2LA, RELAY (7LA) connector X/2 and GND (Ref. ASM 33-41/01).
 C. Do the test as given in the Para.3.A.
 「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 ∞∞33-41-00∞∞∞∞∞∞∞∞∞∞Page 204
 Feb 01/98 CES 5. Close-up

________
 A. Put the aircraft back to its initial configuration.

 LANDING LIGHTS - FAULT ISOLATION PROCEDURES
___________________________________________
 TASK 33-42-00-810-801
 Landing Lights - Landing Light 7LB (8LB) does not extend
 1. Possible Causes
_______________
 - LANDING LIGHT 7LB (8LB)

 - wiring

 - SWITCH-LAND/ON/OFF/RETRACT 5LB

 2. Job Set-up Information
______________________
 A. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE DESIGNATION
 -------------------------------------------------------------------------------
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) does not extend:
 - do a check for 115 VAC at the LANDING LIGHT 7LB (8LB) connector A/A (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).

 (2) If there is no 115 VAC:

 - do a check and repair the wiring if necessary between: SWITCH-LAND/ON/OFF/RETRACT 5LB pin 8 and the related LANDING LIGHT conn. A/B, SWITCH-LAND/ON/OFF/RETRACT 5LB pin 2 or 4 and the related LANDING LIGHT conn. A/C, GND and the related LANDING LIGHT conn. A/K,
 SWITCH-LAND/ON/OFF/RETRACT 5LB pin 1 and CB 3LB (4LB), SWITCH-LAND/ON/OFF/RETRACT 5LB pin 5 and CB 3LB (4LB) (Ref. ASM 33-42/01).
　
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