Service difficulty report · Battery Pack · Boeing 74744AF

Difficulty date
May 10, 2021
Submitted
May 10, 2021
Operation
Air carrier
Aircraft
N574UP
Make and model
Boeing 74744AF
Aircraft serial
35663
Aircraft time
49,610 hours, 7,433 cycles
Part
Battery Pack
Part number
20131A
Part serial
100664
Condition
Inoperative
Location
Emergency Lights
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 CREW REST EMERGENCY LIGHT INOPI.A.W. AMM 33-51-04-902-001-001 REV.101.01 REPLACED THE U/D EMERGENCY LIGHT BATTERY (M5169), AND PERFORMED EMERGENCY LIGHT OPERATIONAL TEST, RESULT WAS SATISFACTORY

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