Service difficulty report · Battery Pack · Boeing 777300ER

Difficulty date
April 18, 2026
Submitted
April 20, 2026
Operation
Air carrier
Aircraft
N2142U
Make and model
Boeing 777300ER
Aircraft serial
63722
Aircraft time
38,256 hours, 4,230 cycles
Part
Battery Pack
Part number
ADD71701100
Condition
No Test
Location
Zone 200
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 LIGHT BATTERY PACK M33097,ABOVE DR 2R CTR, FAILED DEEP CAPACITY TEST. EMER LIGHT BATTERY PACK (M33097) REPLACED IAW AMM 33-51-06. INSTALLATION TEST PERFORMED IAW AMM 33-51-06 SATISFACTORY.

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