(4) Install the fuel pump fairings (Ref. AMM TASK 28-21-49-400-001). Make sure that the fuel pump supply cable does not get caught under the fairings.
(5) Remove the ground support and maintenance equipment, the special and standard tools and all other items.
「一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一一1 EFF : ALL ∞∞28-21-00∞∞∞∞∞∞∞∞∞∞Page 226
May 01/05 CES
**ON A/C ALL
TASK 28-21-00-810-802
Fuel Pumps - Right Wing Tank Fuel Pump No. 1 (Inner) 22QA System Malfunction
WARNING : OBEY THE FUEL SAFETY PROCEDURES.
_______
WARNING : DO NOT CLOSE AN OPEN (TRIPPED) CIRCUIT BREAKER RELATED TO A
_______
FUEL-PUMP.
IF YOU CLOSE THE CIRCUIT BREAKER, THERE IS A RISK:
- OF FIRE OR OF AN EXPLOSION
- OF DAMAGE TO THE AIRCRAFT WIRING AND STRUCTURE.
R WARNING : WHEN YOU DO WORK ON THE FUEL SYSTEM WIRING, YOU MUST USE TEST
_______ R EQUIPMENT THAT IS APPROVED (REFER TO INTERNATIONAL OR NATIONAL R SPECIFICATIONS FOR INTRINSICALLY SAFE TEST EQUIPMENT, E.G. EN50-020, R UL913 OR EQUIVALENT). TEST EQUIPMENT THAT IS NOT APPROVED CAN CAUSE R FIRE OR AN EXPLOSION.
1. Possible Causes
_______________
- PUMP-FUEL NO 1, R WING TK (22QA)
- CNTOR-R WING TK PUMP 1 SPLY (18QA)
- PRESS SW-FUEL PUMP NO 1, R WING TK (24QA)
- SEQUENCE VALVE of the fuel-pump (22QA)
- C/B-FUEL/R WING TK/PUMP 1 SPLY (2QA)
- aircraft wiring
- pressure switch sealing valve
- pressure switch plug (banjo adaptor attachment bolt)
- pressure switch fuel supply pipe-line between the fuel pump canister 3QM and the pressure switch 24QA
2. Job Set-up Information
______________________
A. Fixtures, Tools, Test and Support Equipment
-------------------------------------------------------------------------------REFERENCE QTY DESIGNATION -------------------------------------------------------------------------------
No specific multimeter
No specific 500VDC insulation tester
99A28404000000 1 ADAPTOR - SEQUENCE VALVE
「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 : ALL ∞∞28-21-00∞∞∞∞∞∞∞∞∞∞Page 227
May 01/04 CES B. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
28-21-00-810-827 Fuel - L(R) Wing Tank Pumps 1, Power Supply (Normal)
- C/B-1QA(2QA) Tripped AD 2002-221(B) ASRM 57-21-11 AWM 93-01-07 AWM 93-01-20 AWM 93-01-21 ESPM 20-52-21 ESPM 20-52-24 ESPM 20-53-21 AMM 28-21-00-710-001 Operational Test of the Wing-Tank Fuel Control AMM 28-21-00-710-007 Operational Test of the Main Fuel-Pump System with
Fuel Flow by Transfer AMM 28-21-15-000-003 Removal of the Fuel-Pump Pressure-Switch. AMM 28-21-15-400-001 Installation of the Fuel-Pump Pressure-Switch. AMM 28-21-45-000-001 Removal of the Sequence Valve AMM 28-21-45-400-003 Installation of the Sequence Valve AMM 28-21-49-000-001 Removal of the Fuel Pump Fairings AMM 28-21-49-400-001 Installation of the Fuel Pump Fairings AMM 28-21-51-000-001 Removal of the Fuel Pumps 21QA(26QA) and 25QA(22QA) AMM 28-21-51-400-001 Installation of the Fuel Pumps 21QA(26QA) and
25QA(22QA)
AMM 51-76-12-300-001 Local Repair of the Fuel Tank Sealant
AMM 51-76-12-300-002 Repair of the Fuel Tank Fillet
SB 24-1070
SIL 57-0086
ASM 28-21/01
TSM 24 PB 101
AWM 28-21-02
3. Fault Confirmation
__________________
A. Table of the circuit breakers referred to in this procedure:
-------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------
121VU FUEL/R WING TK/PUMP1 SPLY 2QA Q23
B. Test
WARNING : DO NOT CLOSE AN OPEN (TRIPPED) CIRCUIT BREAKER RELATED TO A
_______ FUEL-PUMP. IF YOU CLOSE THE CIRCUIT BREAKER, THERE IS A RISK:
- OF FIRE OR OF AN EXPLOSION
- OF DAMAGE TO THE AIRCRAFT WIRING AND STRUCTURE.
「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 : ALL ∞∞28-21-00∞∞∞∞∞∞∞∞∞∞Page 228
May 01/04 CES
(1) Examine the C/B-FUEL/R WING TK/PUMP 1 SPLY (2QA). 中国航空网 www.aero.cn 航空翻译 www.aviation.cn 本文链接地址：A320 Trouble Shooting Manual 排故手册 FUEL 燃油1(77)
