SDR CALA2020010600070

Service difficulty report · Battery · Boeing 777222

Difficulty date: December 31, 2019
Submitted: January 6, 2020
Operation: Air carrier
Aircraft: N785UA
Make and model: Boeing 777222
Aircraft serial: 26954
Aircraft time: 101,382 hours, 13,377 cycles
System (JASC): 3350 · Emergency Lighting
Part: Battery
Part number: ADD7170100
Condition: Discharged
Location: Cabin
Stage of operation: IN
How discovered: C
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

''B'' ZONE L/H FWD CEILING AREA EMERGENCY LT BATT LOW CAPACITY, RE FER NON-ROUTINE NO.9497961, ORIGINATED, SPEC NO.B 777-33-3-7019. PERFORMED BY EMP, ''B'' ZONE L/H FWD CEILING AREA EMERGENC Y LT BATTERY (M33099) REPLACED, SYSTEM OPERATION TEST CARRIED OU T FOUND NORMAL REF AMM 33-51-00-710-801 REV.87.