Service difficulty report · Battery Pack · Boeing 74744AF

Difficulty date
May 21, 2021
Submitted
May 21, 2021
Operation
Air carrier
Aircraft
N570UP
Make and model
Boeing 74744AF
Aircraft serial
35667
Aircraft time
50,659 hours, 8,109 cycles
Part
Battery Pack
Part number
20131A
Part serial
97394
Condition
Inoperative
Location
Emergency Light
Stage of operation
IN
How discovered
9
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

INSPECTION TYPE:18FOFOUND L1 DOOR EMERGENCY LIGHT INOPI.A.W. AMM 33-51-04-902-001-001 REV.101.01 REPLACED THE L1 DOOR EMERGENCY LIGHT BATTERY ASSY (M5170) AT U/D L/H STA 550 AND PERFORMED EMERGENCY LIGHT OPERATIONAL TEST, RESULT WAS SATISFACTORY

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