Service difficulty report · Battery Pack · Boeing 777222

Difficulty date
August 11, 2015
Submitted
August 13, 2015
Operation
Air carrier
Aircraft
N787UA
Make and model
Boeing 777222
Aircraft serial
26939
Aircraft time
80,358 hours, 11,217 cycles
Engine
Pwa PW40903
Part
Battery Pack
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

TESTED & FOUND M33407 & M33409 EMER LIGHT STAY ON LESS THAN 15 MINUTES. REPLACED BOTH EMER LIGHT PACKS. OPERATIONS CHECKED NORMAL IAW AMM 33-51-06 REV 74.