____ not easy to remove. Do not use tools which could damage the aircraft structure.

 TASK 33-49-11-400-001
 Installation of the Wing and Engine Scan Light (3LX, 4LX)
 WARNING : WEAR GLASSES AND PROTECTIVE CLOTHING WHEN YOU WORK ON THE LIGHT.

_______

 1.
 Reason for the Job

__________________
 Self Explanatory

 2.
 Job Set-up Information

______________________
 A. Fixtures, Tools, Test and Support Equipment
 -------------------------------------------------------------------------------
REFERENCE  QTY DESIGNATION
 -------------------------------------------------------------------------------
No specific blanking cap
 No specific lint-free cloth
 No specific non-metallic scraper
 No specific access platform 3.5 m (11 ft. 6 in.)

 B. Consumable Materials
 -------------------------------------------------------------------------------
REFERENCE  DESIGNATION
 -------------------------------------------------------------------------------
Material No. 09-019  USA AMS 3267/3
 LOW ADHESION CORROSION INHIBITING SEALANT
 (Ref. 20-31-00)

R  Material No. 11-003 USA ASTM D 740 METHYL-ETHYL-KETONE (Ref. 20-31-00)
 C. Referenced Information
 -------------------------------------------------------------------------------
REFERENCE  DESIGNATION
 -------------------------------------------------------------------------------
33-49-00-710-001 Operational Test of the Wing and Engine Scan Lights 33-49-11-991-001 Fig. 401

 3. Job Set-up
__________ Subtask 33-49-11-865-051
 A. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------FOR 4LX
 122VU LIGHTING/EXT LT/WING/AND ENG SCAN/R 1LX W03 FOR 3LX
 122VU LIGHTING/EXT LT/WING/AND ENG SCAN/L 5LX W02
 Subtask 33-49-11-010-052
 B. Get Access
 (1)
 Make sure that the access platform is in position in zone 230.

 (2)
 Make sure that the sidewall panel is removed in the forward passenger compartment:

 -
FOR 3LX
 231RW.

 -
FOR 4LX
 232KW.

 (3)
 Make sure that the thermal and acoustic insulation is removed in zone 231/232.

 4. Procedure
_________
 (Ref. Fig. 401/TASK 33-49-11-991-001) Subtask 33-49-11-914-050
 A. Installation of a sealant
 (1)
 Clean the component interface and/or the adjacent area.

 (2)
 Do an inspection of the component interface and/or the adjacent area.

 (3)
 Remove the used sealant from the aircraft structure with a non-metallic scraper.

 (4)
 Clean the aircraft structure with CLEANING AGENTS (Material No. 11-003) and a lint-free cloth.

 (5)
 Install the SEALANTS (Material No. 09-019) between the wing and engine scan light (1) and the structure (3) of the aircraft.

 Subtask 33-49-11-420-050
 B. Installation of the Wing and Engine Scan Light
 (1)
 Inside the forward passenger compartment, install the new wing and engine scan light (1).

 (2)
 Remove the blanking cap and connect the movable connector (4) to the light (1).

 (3)
 Outside the aircraft, tighten the 16 screws (2) which attach the wing and engine scan light (1) to the aircraft structure (3).

 Subtask 33-49-11-865-061
 C. Remove the safety clip(s) and the tag(s) and close this(these) circuit breaker(s):
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------FOR 4LX
 122VU LIGHTING/EXT LT/WING/AND ENG SCAN/R 1LX W03 FOR 3LX
 122VU LIGHTING/EXT LT/WING/AND ENG SCAN/L 5LX W02
 Subtask 33-49-11-710-050
 D. Operational Test of the Wing and Engine Scan Lights
 (1) Do the operational test of the Wing and Engine Scan Lights (Ref. TASK 33-49-00-710-001).

 5. Close-up
________

 Subtask 33-49-11-410-050
　
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