Service difficulty report · Battery Pack · Boeing 777222

Difficulty date
March 24, 2021
Submitted
March 26, 2021
Operation
Air carrier
Aircraft
N798UA
Make and model
Boeing 777222
Aircraft serial
26928
Aircraft time
97,192 hours, 13,025 cycles
Part
Battery Pack
Part number
D71701100
Part serial
156264
Condition
No Test
Location
Emergency Lights
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

EMERGENCY EXIT LIGHTING SYSTEM OPERATIONAL CHECK - DOOR SLIDE LIGHTS INOP AT R2, L1, AND L2 T/S DOOR L1 EMERGENCY SLIDE LIGHT REF WDM 33-51-13-1 PG 1 FOUND BATTERY PACK AT M33424 DOES NOT HOLD A CHARGE. SUGGEST REPACING BATTERY PN AD-D717-01-100 BATTERY PACK PN AD-D717-01-100 BATTERY PACK M33097 NOT HOLDING A CHARGE SUGGEST REPLACING T/S EMERGENCY DOOR 2 R AND LEFT REF WDM 33-51-14-1 PG 1 FOUND REPLACED BATTERY PACK AT M33424 REF WDM 33-51-13-1. OPS CHK GOOD FOR DOOR L2 EMERGENCY SLIDE LIGHT REPLACED BATTER PACKS L1 M33424 AND R2 M33097 CKS OK