PWR SPLY UNIT 3LV conn. B/A to LIGHT-BEACON UPPER 7LV conn. A/A,
PWR SPLY UNIT 3LV conn. B/B to LIGHT-BEACON UPPER 7LV conn. A/B,
PWR SPLY UNIT 3LV conn. B/C to LIGHT-BEACON UPPER 7LV conn. A/C,
PWR SPLY UNIT 3LV conn. A/12 to GND,
PWR SPLY UNIT 3LV conn. A/14 to GND (Ref. ASM 33-48/01).
B. Do the test as given in the Para. 3.A .
5. Close-up
________
A. Put the aircraft back to its initial configuration.
TASK 33-48-00-810-804
Beacon Lights - The Lower Anti-Collision Beacon Light does not flash
1. Possible Causes
_______________
- LIGHT-BEACON, LOWER (6LV)
- PWR SPLY UNIT-LOWER BEACON (4LV)
- PWR SPLY-RELAY (9LV)
- EXT LT BEACON-SWITCH (2LV)
- wiring
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 33-48-00-710-001 Operational Test of the Anti-Collision/Strobe Lighting AMM 33-48-12-000-001 Removal of the Lower Beacon/Strobe Light 6LV from the Fuselage Outside AMM 33-48-12-400-001 Installation of the Lower Beacon/Strobe Light 6LV
from the Fuselage Outside AMM 33-48-37-000-001 Removal of the Power Supply Unit 4LV AMM 33-48-37-400-001 Installation of the Power Supply Unit 4LV ASM 33-48/01
3. Fault Confirmation
__________________
A. Do the operational test of the Anti-Collision/Strobe Lighting and confirm that the lower anti-collision beacon light does not flash (Ref. AMM TASK 33-48-00-710-001).
4. Fault Isolation
_______________
A. If the test confirms the fault:
- replace the LIGHT-BEACON, LOWER (6LV) (Ref. AMM TASK 33-48-12-000-001) and (Ref. AMM TASK 33-48-12-400-001).
(1) If the fault continues:
- do a check for 200 VAC at the PWR SPLY UNIT (4LV) connectors A/1, A/2 and A/3 (Ref. ASM 33-48/01)
(a) If there is approx. 200 VAC:
- replace the PWR SPLY UNIT-LOWER BEACON (4LV) (Ref. AMM TASK 33-48-37-000-001) and (Ref. AMM TASK 33-48-37-400-001).
(b) If there is no 200 VAC:
- do a check of the PWR SPLY-RELAY (9LV) and replace it if necessary.
(2) If the fault continues:
- do a check of the EXT LT BEACON-SWITCH (2LV) and replace it if necessary.
(3) If the fault continues:
- do a check and repair the wiring between: CB 5LV conn. A2 to PWR SPLY-RELAY 9LV conn. A/A2, CB 5LV conn. B2 to PWR SPLY-RELAY 9LV conn. A/B2, CB 5LV conn. C2 to PWR SPLY-RELAY 9LV conn. A/C2, CB 5LV conn. A2 to EXT LT BEACON-SWITCH 2LV conn. 1B,
PWR SPLY-RELAY 9LV conn. A/A1 to PWR SPLY UNIT 4LV conn. A/1,
PWR SPLY-RELAY 9LV conn. A/B1 to PWR SPLY UNIT 4LV conn. A/2,
PWR SPLY-RELAY 9LV conn. A/C1 to PWR SPLY UNIT 4LV conn. A/3,
PWR SPLY-RELAY 9LV conn. A/X1 to EXT LT BEACON-SWITCH 2LV conn. 2B,
PWR SPLY-RELAY 9LV conn. A/X2 to GND,
PWR SPLY UNIT 4LV conn. B/A to LIGHT-BEACON LOWER 6LV conn. A/A,
PWR SPLY UNIT 4LV conn. B/B to LIGHT-BEACON LOWER 6LV conn. A/B,
PWR SPLY UNIT 4LV conn. B/C to LIGHT-BEACON LOWER 6LV conn. A/C,
PWR SPLY UNIT 4LV conn. A/12 to GND,
PWR SPLY UNIT 4LV conn. A/14 to GND (Ref. ASM 33-48/01).
B. Do the test as given in the Para. 3.A .
5. Close-up
________
A. Put the aircraft back to its initial configuration.
TASK 33-48-00-810-805
Strobe lights - The Anti-Collision Strobe Lights will not switch off
1. Possible Causes
_______________
- LT-STROBE SW 11LV
- PWR SPLY-RELAY 12LV
- wiring
- LGD SIGNAL-RELAY 13LV
- LGCIU-2 5GA2
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
R 32-31-00-810-802 LGCIU Fault AMM 33-48-00-710-002 Operational Test of the Anti-Collision/Strobe
Lighting
ASM 32-31/04
ASM 32-31/06
ASM 32-62/02
ASM 33-48/01
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