1. Reason for the Job
__________________
R R Self Explanatory
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific safety barriers
No specific warning notice
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
24-41-00-861-002 Energize the Aircraft Electrical Circuits from the External Power 24-41-00-862-002 De-energize the Aircraft Electrical Circuits Supplied from the External Power
3. Job Set-up
__________
Subtask 33-42-00-941-051
A. Safety Precautions R (1) Put the safety barriers in position. R (2) Put the safety barriers in position. R (3) Put a warning notice in position on the panel 25VU to tell persons
not to operate the landing lights.
Subtask 33-42-00-861-050
B. Aircraft Maintenance Configuration
(1) Energize the aircraft electrical circuits (Ref. TASK 24-41-00-861-002).
Subtask 33-42-00-865-050
C. Make sure that this(these) circuit breaker(s) is(are) closed:
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
122VU LIGHTING/LANDING LT/R/CTL 4LB T07 122VU LIGHTING/LANDING LT/R/SPLY 2LB T06 122VU LIGHTING/LANDING LT/L/CTL 3LB T05 122VU LIGHTING/LANDING LT/L/SPLY 1LB T04
4. Procedure
_________
Subtask 33-42-00-710-050
A. Operational Test of the Landing Lights
(1)
Make sure that the travel range(s) of the applicable landing light(s) is(are) clear.
(2)
Do this test: NOTE : This test is for the left landing light. For the right landing
____ light, use the indications in parenthesis.
-------------------------------------------------------------------------------ACTION RESULT -------------------------------------------------------------------------------
On panel 25VU:
1.
Set the LAND L(LAND R) switch to OFF.
2.
Set the LAND L(LAND R) switch to ON.
3.
Set the LAND L(LAND R) switch to OFF.
4.
Set the LAND L(LAND R) switch to RETRACT.
5.
Set the LAND L(LAND R) switch to ON.
6.
Set the LAND L(LAND R) switch to RETRACT.
5. Close-up
________ Subtask 33-42-00-862-050At zone 571(671):
-
the landing light extends fully innot more than 10 seconds.
-
the landing light comes on.
-
the landing light goes off.
-
the landing light retracts in notmore than 10 seconds.
-
the landing light extends
-before the landing light is fully extended, the light comes on.
-the landing light retracts
-after the landing light starts to retract, the light goes off.
A. Aircraft Maintenance Configuration
(1) De-energize the aircraft electrical circuits (Ref. TASK 24-41-00-862-002).
Subtask 33-42-00-942-051
B. Removal of Equipment
(1)
Remove the safety barriers.
(2)
Remove the warning notice(s).
(3)
Remove the ground support and maintenance equipment, the special and standard tools and all other items.
LIGHT - LANDING (7LB,8LB) - REMOVAL/INSTALLATION________________________________________________
TASK 33-42-11-000-001
Removal of the Landing Light 7LB (8LB)
WARNING : PUT THE SAFETY DEVICES AND THE WARNING NOTICES IN POSITION BEFORE YOU_______ START A TASK ON OR NEAR: - THE FLIGHT CONTROLS - THE FLIGHT CONTROL SURFACES - THE LANDING GEAR AND THE RELATED DOORS - COMPONENTS THAT MOVE.
WARNING : MAKE SURE THAT THE GROUND SAFETY-LOCKS ARE IN POSITION ON THE LANDING_______ GEAR.
WARNING : MAKE SURE THAT THERE ARE NO SIGNS OF FUEL CONTAMINATION IN THE_______ LANDING LIGHT ASSEMBLY. IF YOU FIND FUEL CONTAMINATION, NO PERSON MUST OPERATE THE LANDING LIGHT UNTIL: - YOU REPAIR THE FUEL LEAK - YOU REPLACE THE LANDING LIGHT ASSEMBLY. IF YOU DO NOT OBEY THIS PRECAUTION, IGNITION OF THE REMAINING FUEL IN THE LANDING LIGHT CAN OCCUR.
R R R R R R R R R R R R CAUTION : WHEN YOU REPLACE A LANDING LIGHT ASSEMBLY, EXAMINE THE APPLICABLE_______ LANDING LIGHT ASSEMBLY FOR SIGNS OF FUEL CONTAMINATION. IF YOU FIND FUEL CONTAMINATION, EXAMINE THE ITEMS THAT FOLLOW FOR SIGNS OF FUEL LEAKAGE: - THE FUEL PUMP(S) 21QA(26QA) OR 25QA(22QA) - THE WATER DRAIN VALVE 25QM(26QM) DIRECTLY FORWARD OF THE LANDING LIGHT ASSEMBLY. REFER TO AMM 28-11-00-06 FOR LEAKAGE LIMITS AND REPAIR AS NECESSARY. IF YOU DO NOT REPAIR THE LEAK, NO PERSONS MUST OPERATE THE APPLICABLE LANDING LIGHT UNTIL: - THE LEAK IS REPAIRED - THE LANDING LIGHT ASSEMBLY IS REPLACED.
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