Service difficulty report · Power Supply · Boeing 7379

Difficulty date
October 22, 2025
Submitted
October 28, 2025
Operation
Air carrier
Aircraft
N972AK
Make and model
Boeing 7379
Aircraft serial
43389
Aircraft time
13,446 hours, 3,872 cycles
Part
Power Supply
Part number
D7170201
Condition
Inoperative
Location
Cabin
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

BATERY PACK CAPACITY CK FAILED AT FWD ENTRY LT, AFT ENTRY LT, AND 17-23 ROWS LOCATION. SRXR430X. GROUNDED - YES. REMOVED AND REPLACED BATTERY POWER SUPPLY AT M1671 AND BATTERY PACKS AT 1673, AND M1675 FED LT AND AFT LT AND PERFORMED OPS CHECK TESTED GOOD IAW B737 AMM 33-51-06-960-803 AND AMM 33-51-06-960-802. SRXR430X. (S/N 167617)

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