Service difficulty report · Circuit Breaker · Boeing 737890

Difficulty date
February 21, 2010
Submitted
February 23, 2010
Operation
Air carrier
Aircraft
N570AS
Make and model
Boeing 737890
Aircraft serial
35185
Aircraft time
11,653 hours, 3,368 cycles
Part
Circuit Breaker
Part number
BACC18AC10
Condition
Defective
Location
Cockpit
Stage of operation
NR
How discovered
O
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

LEFT CENTER FUEL PUMP INOP. REMOVED AIRCRAFT POWER. ACCOMPLISHED FIM TASK 28 22 00 810 817. INSPECTED LEFT CTR FUEL BOOST PUMP WIRINGS C/B C845 R54 D11434 R962 D49996P/J D5348J/P AND D802. INSULATION AND CONTINUITY CHECK GOOD FROM C845 TO D802 REF WDM 28 23 11 AND AMM 28 22 00 200 801. NO FAULTS FOUND DURING INSPECTIONS. REPLACED C/B C845 RELAY R54 AND R962 AS PRECAUTIONARY PER TSR. RE-APPLY A/C POWER. LEFT CTR BOOST PUMP AND GFI OPERATIONAL TEST GOOD PER AMM TASK 28 22 41 720 802. DURING LEFT CTR PUMP OPERATION ACCOMPLISHED WIRINGS SHAKE AND TAP DOWN FROM C/B C845 TO PUMP CONNECTOR D802 WITH NO FAULTS. VERIFIED LEFT CTR BOOST PUMP SUCCESSFULLY TRANSFERS 15 000 LBS OUT OF CTR TANK.