Replacement of the Halogen Bulb of the Taxi Light

TASK 33-46-12-960-002-A
Replacement of the Halogen Bulb of the Taxi Light

WARNING: WEAR GLASSES AND PROTECTIVE CLOTHING WHEN YOU DO WORK ON THE LIGHT. THE LAMP IS PRESSURIZED AND AN EXPLOSION CAN OCCUR.

CAUTION: DO NOT TOUCH THE LAMP GLASS WITH YOUR FINGERS. THE OILS FROM YOUR SKIN WILL QUICKLY CAUSE DETERIORATION OF THE LAMP. IF YOU ACCIDENTALLY TOUCH THE LAMP GLASS, CLEAN IT WITH A LINT-FREE CLOTH.

NOTE: This procedure is only applicable for halogen-bulb taxi lights.

ZONE: 711
FIN: 8LR

1. Reason for the Job
Self explanatory
2. Job Set-up Information
A. Fixtures, Tools, Test and Support Equipment

REFERENCE	QTY	DESIGNATION
No specific	1	AIR SOURCE 0.3 TO 0.7 BAR (5 TO 10 PSI)- FILTERED, DRY
No specific	AR	SAFETY CLIP - CIRCUIT BREAKER
No specific	1	TAPE - ADHESIVE

B. Consumable Materials

REFERENCE	DESIGNATION
(Material No.08BBD1)	Non Aqueous Cleaner-- Isopropyl Alcohol -
(Material No.14SBA1)	Textile-Lint free Cotton -

C. Work Zones and Access Panels

ZONE/ACCESS	ZONE DESCRIPTION
711	NOSE GEAR

D. Expendable Parts

FIG.ITEM	DESIGNATION	IPC-CSN
4	CLAMP	AIPC 33-46-12-01-010
7	HALOGEN BULB	AIPC 33-46-12-01-050
8	HALOGEN BULB	AIPC 33-46-12-01-050

E. Referenced Information

REFERENCE	DESIGNATION
TASK 33-46-00-710-001-A	Operational Test of the Taxi and Take Off Lights
Halogen Bulb

3. Job Set-up
Subtask 33-46-12-865-066-A

A. Open, safety and tag this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
122VU	LIGHTING/EXT LT/TAXI AND TAKE OFF/TAXI	1LR	W08

4. Procedure
Subtask 33-46-12-020-055-A

A. Removal of the Halogen Bulb
(1) For the ZODIAC taxi light:
(a) Remove the screw (1), washer (2) and insulating washer (3).
(b) Remove the clamp (4).
(c) Pull the lens (5) away from the support (9).
1 Put an TAPE - ADHESIVE to hold the mirror (10) in position on the support (9).
(d) Remove the two screws (6) and the two washers (7).
(e) Carefully remove the halogen bulb (8).
(2) For the HONEYWELL taxi light:
(a) Remove the four screws (1).
(b) Remove the retainer (2).
(c) Pull the lens (3) away from the support (9).
1 Put an TAPE - ADHESIVE to hold the mirror (8) in position on the support (9).
(d) Remove the two screws (4) and the two washers (5).
(e) Carefully remove the halogen bulb (7).

Subtask 33-46-12-420-055-A

B. Installation of the Halogen Bulb
(1) For the ZODIAC taxi light:

CAUTION: WHEN YOU INSTALL THE HALOGEN BULB ON THE EQUIPPED MIRROR, MAKE SURE THAT THE PINCH SEAL END POINTS UP. IF THE INSTALLATION DIRECTION IS NOT CORRECT, THERE IS A RISK THAT THE BULB WILL NOT OPERATE CORRECTLY.

CAUTION: USE ONLY CLEAN, LINT-FREE GLOVES WHEN YOU TOUCH THE BULB AND THE MIRROR.

(a) Make sure that the pinch seal (11) end points up.
(b) Put a new AIPC 33-46-12-01-050 HALOGEN BULB (8) in position.
(c) Install the two washers (7) and the two screws (6).
(d) Tighten the two screws (6). Tighten the two screws (6) again a quarter turn more.
(e) Remove the adhesive tape from the mirror (10).
(f) Clean the component interfaces and the adjacent area.
(g) If you touch the lens (5) with your fingers, clean the surface of the lens (5) and the mirror (10) with Textile-Lint free Cotton - (Material No.14SBA1) .
(h) Use the AIR SOURCE 0.3 TO 0.7 BAR (5 TO 10 PSI)- FILTERED, DRY and dry the surface of the lens (5) and the mirror (10) with a low airflow.
(i) Put the clamp (4), with the chamfer behind the substitude halogen lamp and the brackets turned down, on the optic support (9) to safety the sealed beam.
(j) Put the clamp (4) in position.
1 If the clamp (4) is twisted, install a new AIPC 33-46-12-01-010 CLAMP (4).
(k) Compress the clamp (4) with your hand to move the two brackets near each other and install the insulating washer (3), flat washer (2) and screw (1).
(l) Put a gage with a thickness of 7 +0 mm or -0.2 mm (0.2756 +0.0000 in. or -0.0079 in.) between the two brackets of the clamp (4).

NOTE: You can use the bulb handling tool-gage to measure the distance between the two brackets of the clamp (4).

(m) Tighten the screw (1).

CAUTION: DO NOT USE THE BULB HANDLING TOOL TO TIGHTEN THE CLAMP SCREW. DAMAGE CAN OCCUR TO THE COMPONENTS IF THE BULB HANDLING TOOL BREAKS. USE THE CORRECT TOOL TO TIGHTEN THE CLAMP SCREW.

1 Tighten the screw (1) until the two brackets touch the gage without distortion.
(n) Remove the gage.
(2) For the HONEYWELL taxi light:

CAUTION: USE ONLY CLEAN, LINT-FREE GLOVES WHEN YOU TOUCH THE BULB AND THE MIRROR.

(a) Make sure that the pinch seal (6) end points up.
(b) Put a new AIPC 33-46-12-01-050 HALOGEN BULB (7) in position.
(c) Install the two washers (5) and the two screws (4).
(d) Tighten the two screws (4). Tighten the two screws (4) again a quarter turn more.
(e) Remove the adhesive tape from the mirror (8).
(f) Clean the component interfaces and the adjacent area.
(g) Clean the surface of the lens (3) with Non Aqueous Cleaner-- Isopropyl Alcohol - (Material No.08BBD1) .
(h) Dry the surface of the lens (3) with a Textile-Lint free Cotton - (Material No.14SBA1) .
(i) Put the lens (3) in position on the mirror (8).
(j) Put the retainer (2) in position.
(k) Install the four screws (1).
(l) Tighten the four screws (1).

Subtask 33-46-12-865-071-A

C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):

PANEL	DESIGNATION	FIN	LOCATION
** ON A/C ALL
122VU	LIGHTING/EXT LT/TAXI AND TAKE OFF/TAXI	1LR	W08

Subtask 33-46-12-710-054-A

D. Operational Test
(1) Do the operational test of the taxi light (Ref. AMM TASK 33-46-00-710-001).

5. Close-up
Subtask 33-46-12-942-054-A

A. Make sure that the work area is clean and clear of tools and other items.

[Rev.10 from 2021] 2026.04.01 00:55:59 UTC