Service difficulty report · Power Supply · Boeing 7379

Difficulty date
December 28, 2023
Submitted
January 17, 2024
Operation
Air carrier
Aircraft
N919AK
Make and model
Boeing 7379
Aircraft serial
44087
Aircraft time
10,147 hours, 3,065 cycles
Part
Power Supply
Part number
D71702001
Condition
Inoperative
Location
Cabin
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

EMERGENCY BATTERY PACK POWER SUPPLY M1673 FAILS CAPACITY CHECK. GROUNDED - YES. REMOVED, REPLACED AND PERFORMED INSTALLATION TEST OF EMERGENCY BATTERY PACK POWER SUPPLY M1673 IAW-MAX9 AMM33-51-06-960-803, TEST GOOD.

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