Service difficulty report · Battery Pack · Boeing 777300ER

Difficulty date
February 3, 2026
Submitted
February 4, 2026
Operation
Air carrier
Aircraft
N2737U
Make and model
Boeing 777300ER
Aircraft serial
62647
Aircraft time
37,616 hours, 4,055 cycles
Part
Battery Pack
Part number
D71701100
Condition
Discharged
Location
Zone 800
Stage of operation
IN
How discovered
V
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

OPERATIONAL TEST FDN R4 DOOR M33404 BATTERY PACK LOW CAPACITY, REPLACED R4 DOOR M33404 BATTERY PACK AND C/O OPERATIONAL TEST AS PER AMM 33-51-06-960-802 REV106,THE RESULT WAS NORMAL. RH DOOR 4 M33404 BATTERY PACK LOW CAPACITY. REPLACED AND PERFORMED INSTALLATION TEST, AND THE RESULT WAS NORMAL AS PER AMM33-51-06-960-802 REV 106 SDR WAS CREATED. ELB CLOSED.

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