Service difficulty report · Battery Pack · Boeing 777223

Difficulty date
September 11, 2020
Submitted
September 15, 2020
Operation
Air carrier
Aircraft
N759AN
Make and model
Boeing 777223
Aircraft serial
32638
Aircraft time
72,766 hours, 9,229 cycles
Part
Battery Pack
Part number
285W0955102
Condition
Failed
Location
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 WAS GROUNDED (SHORT TERM STORAGE): 2R DOOR EMERGENCY POWER ASSIST SYSTEM GREEN TEST LIGHT DID NOT COME ON WHEN EMERGENCY POWER ASSIST SYSTEM IS ARMED. REMOVED AND REPLACED DOOR 2R EMERGENCY POWER ASSIST SYSTEM BATTERY PACK ASSEMBLY (ALA202009139020) AND INSTALLED NEW EMERGENCY POWER ASSIST SYSTEM 9V BATTERIES (ALA202009139021) TO NEW DOOR 2R EMERGENCY POWER ASSIST SYSTEM BATTERY PACK ASSEMBLY, IAW AMM 52-10-00 AND TEST CHECKED GOOD.