Service difficulty report · Battery · Boeing 74744AF

Difficulty date
July 5, 2017
Submitted
July 5, 2017
Operation
Air carrier
Aircraft
N573UP
Make and model
Boeing 74744AF
Aircraft serial
35662
Aircraft time
34,903 hours, 5,416 cycles
Part
Battery
Part number
20131A
Part serial
100382
Condition
Inoperative
Location
Emergency Lights
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

UPPER DECK EMERGENCY LIGHTS L1533, L5733, L5767, AND M4915 INOPERATIVE. REPLACED THE EMERGENCY LIGHT BATTERY (M5169 )IAW AMM 33-51-04-902-001-001, REV 89.01, AND PERFORMED AN EMERGENCY LIGHT TEST, RESULTS WERE SATISFACTORY.

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