Service difficulty report · Power Supply · Boeing 737990ER

Difficulty date
May 12, 2026
Submitted
May 19, 2026
Operation
Air carrier
Aircraft
N275AK
Make and model
Boeing 737990ER
Aircraft serial
61556
Aircraft time
24,464 hours, 7,836 cycles
Part
Power Supply
Part number
D71702001
Condition
Inoperative
Location
Zone 200
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 LIGHTS ASSOCIATED WITH POWER SUPPLY M2626 ARE INOP. GROUNDED - YES. REMOVED AND REPLACED EMERGENCY POWER SUPPLY M2626, OPS TEST GOOD , IAW B737NG AMM 33-51-06.