Service difficulty report · Power Supply · Boeing 7379

Difficulty date
January 4, 2026
Submitted
January 13, 2026
Operation
Air carrier
Aircraft
N973AK
Make and model
Boeing 7379
Aircraft serial
43346
Aircraft time
14,068 hours, 4,102 cycles
Part
Power Supply
Part number
D71701100
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

RIGHT OVERWING AND BEHIND THE WING EMERGENCY LIGHTS FAILED CAPACITY TEST. GROUNDED - YES. REMOVED AND REPLACED BATTERY PACK M1671 IAW AMM 33-51-06-960-802. OPS CHECKED GOOD.

More about the Boeing 737-9