SDR CALA2024022200504

Service difficulty report · Battery Pack · Boeing 777222

Difficulty date: February 21, 2024
Submitted: February 22, 2024
Operation: Air carrier
Aircraft: N792UA
Make and model: Boeing 777222
Aircraft serial: 26934
Aircraft time: 106,167 hours, 14,134 cycles
System (JASC): 3350 · Emergency Lighting
Part: Battery Pack
Part number: ADD71701100
Condition: Discharged
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

M/D L2 DOOR 1EA EMER LT POWER PACK(M33096) FOUND LOW CAPACITY,OR IGINATED BY EMP V905377,REF TO HAECO NON ROUTINE NO.9479192,SPEC NO.B777-25-3-7250. PERFORMED BY EMP V905377,REPLACED L2 DOOR EMER LT POWER PACK(M33 096) AND CARRIED OUT OPERATION TEST FOUND NORMAL AS PER AMM 33-5 1-06-960-802 REV 100,IDT BY TA496.