Service difficulty report · Battery Pack · Boeing 777223

Difficulty date
June 14, 2021
Submitted
June 15, 2021
Operation
Air carrier
Aircraft
N786AN
Make and model
Boeing 777223
Aircraft serial
30250
Aircraft time
81,316 hours, 10,031 cycles
Part
Battery Pack
Condition
Failed
Location
R1 Door Assist
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

AIRCRAFT IN BASE MAINTENANCE: R1 DOOR EMERGENCY POWER ASSIST SYSTEM BATTERY TEST INDICATOR LIGHT GREEN AND AMBER LIGHTS FAILED TO COME ON. REPLACED BATTERY PACK PER AMM 52-11-20-805-002 AND 52-11-20-400-805-002.