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SDR CALA2021080401247

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Service difficulty report · Battery Pack · Boeing 777222

FAA SDR system

Difficulty date
August 2, 2021
Submitted
August 4, 2021
Operation
Air carrier
Aircraft
N784UA
Make and model
Boeing 777222
Aircraft serial
26951
Aircraft time
101,039 hours, 13,238 cycles
System (JASC)
3350 · Emergency Lighting
Part
Battery Pack
Part number
D71701100
Part serial
151929
Condition
Discharged
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

DOOR L3 EMERGENCY LIGHTING BATTERY PACK M33405 DOESN''T OPERATE D URING FUNCTIONAL TEST REF HAECO NON-ROUTINE NO.9446468,ORIGINATE D BY EMP V905359,SPEC NO.B777-33-3-7015. PERFORMED BY EMP V905359,REPLACED DOOR L3 BATTERY PACK M33405 AN D PERFORMED LIGHT TEST,THE RESULT WAS NORMAL PER AMM 33-51-06-96 0-802 REV 92A,IDT BY TA472.