Service difficulty report · Battery Pack · Boeing 777222

Difficulty date
July 16, 2021
Submitted
July 19, 2021
Operation
Air carrier
Aircraft
N777UA
Make and model
Boeing 777222
Aircraft serial
26916
Aircraft time
100,487 hours, 17,907 cycles
Part
Battery Pack
Part number
ADD71701100
Condition
Malfunctioned
Location
Door 1 R
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

DOOR 1R M33094 EMERGENCY POWER SUPPLY FOUND MALFUNCTION - ORIGIN ATED BY EMP V905495 ON HAECO NR 9445934, SPEC NO.B777-33-3-7031. PERFORMED BY EMP V905456, DOOR 1R EMERGENCY LIGHT POWER SUPPLY P ACK REPLACED AND OPERATIONAL TEST CARRIED OUT, FOUND NORMAL AS P ER AMM 33-51-06-960-802 REV 92.