SDR CALA2021071901133

Service difficulty report · Battery Pack · Boeing 777222

Difficulty date: July 16, 2021
Submitted: July 19, 2021
Operation: Air carrier
Aircraft: N204UA
Make and model: Boeing 777222
Aircraft serial: 28713
Aircraft time: 94,562 hours, 12,441 cycles
System (JASC): 3350 · Emergency Lighting
Part: Battery Pack
Part number: ADD71701100
Condition: Low
Location: Door 3l
Stage of operation: IN
How discovered: O
Nature of condition: O
Precautionary procedure: O

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

EMERGENCY LT OPERATIONAL CHECK FOUND L3 EMERGENCY LT BATTERY (M33400) LOW CAPACITY, REF TO HAECO NON-ROUTINE NO.9445971, SPEC NO. B777-33-3-7031. PERFORMED BY EMP V905494 IDT BY TA687, DOOR 3L EMERGENCY LIGHT BATTERY PACK M33400 REPLACED, INSTALLATION TEST PERFORMED, FOUND RESULT NORMAL REF TO AMM 33-51-06-960-802 REV 92.