(2) Have the C/B-FUEL/2/L CTL AND R IND (9QA), R24 at 121VU and C/B-FUEL/2/R CTL AND L IND (10QA), R29 at 121VU tripped.
NOTE : If one C/B only operates, the FAULT legend of the related
____ PUMPS P/BSW will illuminate as the indication supplies are cross connected.
(3) Reset the C/Bs if found tripped.
(4) If unable to reset the C/Bs in 4.A.(3), replace the C/B-FUEL/2/L CTL AND R IND (9QA) 121VU and/or C/B-FUEL/2/R CTL AND L IND (10QA) 121VU.
(5) Do the Operational Test of the Wing-Tanks Fuel Control (Ref. AMM TASK 28-21-00-710-001).
「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 B218
May 01/04 CESR **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
TASK 28-21-00-810-833 Fuel Pumps - Center Tank Pumps 1 And 2 Do Not Run And No Fault Indication Shown WARNING : OBEY THE FUEL SAFETY PROCEDURES.
_______
1. Possible Causes
_______________
- C/B-FUEL/CTR TK/PUMPS 1 AND 2/CTL AND IND (31QA), R25 at 121VU and C/B-FUEL/CTR TK/PUMPS 1 AND 2/CTL AND IND (32QA), R26 at 121VU tripped
- C/B-FUEL/CTR TK/PUMPS 1 AND 2/CTL AND IND (31QA) 121VU
- C/B-FUEL/CTR TK/PUMPS 1 AND 2/CTL AND IND (32QA) 121VU
2. Job Set-up Information
______________________
A. Referenced Information
-------------------------------------------------------------------------------REFERENCE DESIGNATION -------------------------------------------------------------------------------
AMM 28-21-00-720-001 Functional Test of the Center-Tank Fuel Control AMM 33-14-00-710-001 Operational Test of the Annunciator Light Test System in the Cockpit
3. Fault Confirmation
__________________
A. Not applicable, the fault is evident.
4. Fault Isolation
_______________
A. Do the Operational Test of the Annunciator Light Test System (Ref. AMM TASK 33-14-00-710-001).
(1) Repair/replace as necessary any faults found in Para 4.A.
(2) Have the C/B-FUEL/CTR TK/PUMPS 1 AND 2/CTL AND IND (31QA), R25 at 121VU and C/B-FUEL/CTR TK/PUMPS 1 AND 2/CTL AND IND (32QA), R26 at 121VU tripped.
NOTE : The legends on the above C/Bs are incorrect:
____ - 31QA should read C/B-FUEL/CTR TK/PUMPS 1 CTL AND 2 IND
- 32QA should read C/B-FUEL/CTR TK/PUMPS 2 CTL AND 1 IND. NOTE : If only one C/B operates, the FAULT legend of the related
____ PUMPS P/BSW will illuminate as the indication supplies are cross connected.
(3) Reset the C/Bs if found tripped.
「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, ∞∞28-21-00∞∞∞∞∞∞∞∞∞∞Page B219
201-299, 401-499, Aug 01/05 CES
(4) If unable to reset the C/Bs in 4.A.(3), replace the C/B-FUEL/CTR TK/PUMPS 1 AND 2/CTL AND IND (31QA) 121VU and/or C/B-FUEL/CTR TK/PUMPS 1 AND 2/CTL AND IND (32QA) 121VU.
(5) Do the Functional Test of the Center-Tank Fuel Control (Manual Mode) (Ref. AMM TASK 28-21-00-720-001).
「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, ∞∞28-21-00∞∞∞∞∞∞∞∞∞∞Page B220
201-299, 401-499, Aug 01/05 CES
TASK 28-21-00-810-834
Fuel Pumps - Both Center Tank Pumps Off (Configuration), Forgot To Switch Them On
WARNING : OBEY THE FUEL SAFETY PROCEDURES.
_______
1. Possible Causes
_______________
2. Job Set-up Information
______________________
Not Applicable
3. Fault Confirmation
__________________
A. No maintenance steps are necessary. NOTE : This is a reminder for Flight Crew to switch on the center tank
____ pumps 1 and 2. The warning is only given in Flight Phases 2 and 6.
4. Fault Isolation
_______________
A. Not applicable.
「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, ∞∞28-21-00∞∞∞∞∞∞∞∞∞∞Page B221
201-299, 401-499, Aug 01/05 CES
**ON A/C ALL
