-
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.
CAUTION : WHEN YOU REPLACE THE FUEL PUMP(S) 21QA(26QA) OR 25QA(22QA), 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.
1. Reason for the Job
__________________
Self Explanatory
1EFF : ALL 1 28-21-51Page 401 1 1 May 01/04 1 1 1CES 1
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific blanking caps
No specific circuit breaker(s) safety clip(s)
No specific safety barriers
No specific thin plastic scraper
No specific container 2.0 l (0.5283 USgal)
No specific access platform 2.8 m (9 ft. 2 in.)
R 558-1-05903 1 EXTRACTOR - FUEL PUMP 558-1-05903-002 1 EXTRACTOR TOOL
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
28-00-00-910-001 Fuel Safety Procedures
28-25-00-650-001 Pressure Defuel
33-42-11-000-001 Removal of the Landing Light 7LB (8LB)
28-21-51-991-001 Fig. 401
28-21-51-991-004 Fig. 402
3. Job Set-up
__________
(Ref. Fig. 401/TASK 28-21-51-991-001, 402/TASK 28-21-51-991-004)
Subtask 28-21-51-941-057
A. Safety Precautions
WARNING : OBEY THE FUEL SAFETY PROCEDURES.
_______
(1)
You must obey the fuel safety procedures (Ref. TASK 28-00-00-910-001) when you do work on the fuel system.
(2)
Put the safety barriers in position.
1EFF : ALL 1 28-21-51Page 402 1 1 Aug 01/05 1 1 1CES 1
R Fuel Pump 21QA(26QA) and 25QA(22QA) Figure 401/TASK 28-21-51-991-001
1EFF : 1 1 1CES ALL 1 111 28-21-51 Page 403 May 01/01
Fuel Pump Extractor Figure 402/TASK 28-21-51-991-004
1EFF : 1 1R 1CES ALL 1 11 1 28-21-51 Page 404 May 01/01
Subtask 28-21-51-865-050
R B. Open, safety and tag this(these) circuit breaker(s):
-------------------------------------------------------------------------------
PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
R R R R FOR 21QA, 25QA 121VU FUEL/L WING TK/PUMP2 SPLY 121VU FUEL/L WING TK/PUMP1 SPLY 122VU LIGHTING/LANDING LT/L/CTL 122VU LIGHTING/LANDING LT/L/SPLY 123VU L WING TK/PUMP 1/STBY SPLY FOR 22QA, 26QA 121VU FUEL/R WING TK/PUMP2 SPLY 121VU FUEL/R WING TK/PUMP1 SPLY 122VU LIGHTING/LANDING LT/R/CTL 122VU LIGHTING/LANDING LT/R/SPLY 123VU R WING TK/PUMP 1/STBY SPLY 7QA 1QA 3LB 1LB 11QA 8QA 2QA 4LB 2LB 12QA N26N23 T05 T04AD12Q26Q23 T07 T06AE12
Subtask 28-21-51-010-052
C. Get Access
(1) Put the access platform in position below zone 540(640).
(2) Remove the front fairing (7) and the cover-plate (5) assembly as follows:
R R NOTE : There can be sealant between the front fairing and the____ under-wing skin. If necessary, use a thin plastic scraper to disengage the parts.
(a) Hold the cover-plate (5) and remove the bolts (6).
(b) Remove the cover-plate (5) and the front fairing (7) assembly from the under-wing skin.
(3) Disconnect the electrical connector from the electrical receptacle (14).
(4) Put blanking caps on the electrical connector and the receptacle (14).
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