(b) If the 28VDC is not available do a wiring check (Ref. ASM 28-15/02) of the aircraft wiring between the RELAY-L WING TK LOW LEVEL CHANNEL B (7QP) terminals A2, X1, and the C/B-FUEL/XFR VALVE 2/WING/L (3QP).
(c) Repair all the unserviceable wiring and connectors (Ref. ESPM 20-00-00).
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 001-049, 051-099, 101-149, 151-199, ∞∞28-15-00∞∞∞∞∞∞∞∞∞∞Page 223
201-299, 401-499, Aug 01/05 CES
(d) Check with a multimeter to make sure that 28VDC is available at:
- terminal A2, RELAY-R WING TK LOW LEVEL CHANNEL A (8QP)
- terminal X1, RELAY-R WING TK LOW LEVEL CHANNEL A (8QP).
(e) If the 28VDC is not available do a wiring check (Ref. ASM 28-15/02) of the aircraft wiring between the RELAY-R WING TK LOW LEVEL CHANNEL A (8QP) terminals A2, X1, and the C/B-FUEL/XFR VALVE 2/WING/R (4QP).
(f) Repair all the unserviceable wiring and connectors.
(6) Do the test given in Para 3.B.
(7) If the fault continues, check/replace the RELAY-L WING TK LOW LEVEL CHANNEL B (7QP) 103VU.
(8) Do the test given in Para 3.B.
(9) If the fault continues check/replace the RELAY-R WING TK LOW LEVEL CHANNEL A (8QP) 103VU.
(10) Do the test given in Para 3.B.
(11) If the fault continues check/replace the RELAY-L OR R FWD XFR VALVE OPEN LATCH (14QP) 103VU.
(12) Do the test given in Para 3.B.
(13) If the fault continues do a wiring check (Ref. ASM 28-15/02) of the aircraft wiring between:
- the pin B, ACTUATOR-TRANSFER VALVE, L FWD SPAR (9QP) and the terminal B1, RELAY-R WING TK LOW LEVEL CHANNEL A (8QP)
- the terminal B2, RELAY-R WING TK LOW LEVEL CHANNEL A(8QP) and the terminal A1, RELAY-L WING TK LOW LEVEL CHANNEL B (7QP)
- the terminal X2, RELAY-L WING TK LOW LEVEL CHANNEL B (7QP) and the terminal A, RELAY-L OR R FWD XFR VALVE OPEN LATCH (14QP)
- the terminal X2, RELAY-R WING TK LOW LEVEL CHANNEL A (8QP) and the terminal B, RELAY-L OR R FWD XFR VALVE OPEN LATCH (14QP)
- the terminal 1, RELAY-L OR R FWD OPEN LATCH (14QP) and the pin 11B, connector AA, FLSCU-2 (9QJ)
- the terminal 3, RELAY-L OR R FWD OPEN LATCH (14QP) and the pin 11B, connector AA, FLSCU-1 (7QJ)
- the pin 1C, connector AA, FLSCU-1 (7QJ) and the C/B-FUEL/XFR VALVE 2/WING/R (4QP)
- the pin 1C, connector AA, FLSCU-2 (9QJ) and the C/B-FUEL/XFR VALVE 2/WING/L (3QP).
(14) Repair all the unserviceable wiring and connectors.
(15) Do the test given in Para 3.B.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1R EFF : 001-049, 051-099, 101-149, 151-199, ∞∞28-15-00∞∞∞∞∞∞∞∞∞∞Page 224
201-299, 401-499, Aug 01/05 CES TASK 28-15-00-810-808
Intercell XFR Valve Failure (Left Rear) - Open When Fuel Not Low Level
WARNING : OBEY THE FUEL SAFETY PROCEDURES.
_______
WARNING : WHEN YOU DO WORK ON THE FUEL SYSTEM WIRING, YOU MUST USE TEST
_______ EQUIPMENT THAT IS APPROVED (REFER TO INTERNATIONAL OR NATIONAL SPECIFICATIONS FOR INTRINSICALLY SAFE TEST EQUIPMENT, E.G. EN50-020, UL913 OR EQUIVALENT). TEST EQUIPMENT THAT IS NOT APPROVED CAN CAUSE FIRE OR AN EXPLOSION.
1. Possible Causes
_______________
- ACTUATOR-TRANSFER VALVE, L REAR SPAR (11QP)
- aircraft wiring
- RELAY-L WING TK LOW LEVEL CHANNEL A (5QP) 103VU
- RELAY-R WING TK LOW LEVEL CHANNEL B (6QP) 103VU
- RELAY-L OR R REAR XFR VALVE OPEN LATCH (13QP) 103VU
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific multimeter
B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
ESPM 20-00-00 AMM 28-15-00-740-002 Functional (BITE) Test of the Intercell Transfer
Valves
AMM 28-15-51-000-002 Removal of the Actuator 11QP(12QP)
AMM 28-15-51-400-002 Installation of the Actuator 11QP(12QP)
AMM 28-46-00-740-001 Functional (BITE) Test
ASM 28-15/01
TFU 28.15.00.003
TSM INTRO, 3.G(2)(b)2_
