Service difficulty report · Battery · Boeing 74745E

Difficulty date
July 10, 2019
Submitted
July 10, 2019
Operation
Air carrier
Aircraft
N579UP
Make and model
Boeing 74745E
Aircraft serial
26062
Aircraft time
102,874 hours, 17,280 cycles
Part
Battery
Part number
20131A
Part serial
18644
Condition
Discharged
Location
Cabin
Stage of operation
IN
How discovered
C
Nature of condition
L
Precautionary procedure
K

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

What was found

INSPECTION TYPE:SV FOUND UPPER DECK EMERGENCY LIGHT L5734, L1382 , L5607, L5604, L5524, M4716, M4714 INOPERATIVE.1. IAW WDM 33-51-12 AND WDM 33-51-13 REV.34.02 PERFORMED WIRING CHECK, FOUND POWER SUPPLY M5055 AND M5056 FAILED. 2. IAW AMM 33-51-04-902-001-001 REV.95.04 REPLACED EMERGENCY LIGHT POWER SUPPLY BATTERY M5055 AND M5056. 3. IAW AMM 33-51-04-902-001-001 REV.95.04 PERFORMED POWER SUPPLY TEST , RESULT WAS SATISFACTORY.

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