Service difficulty report · Power Supply · Boeing 737990ER

Difficulty date
January 3, 2020
Submitted
January 9, 2020
Operation
Air carrier
Aircraft
N237AK
Make and model
Boeing 737990ER
Aircraft serial
36357
Aircraft time
14,327 hours, 4,762 cycles
Part
Power Supply
Part number
D71702001
Condition
Failed
Location
Cabin
Stage of operation
IN
How discovered
C
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 COMMON TO L2 DOOR BATTERY PACK DISCHARGE CHECK FAILED. GROUNDED - YES. REMOVED AND REPLACED POWER SUPPLY AND OPS CHECK GOOD IAW ASA B737-900 AMM 33-51-06.