Service difficulty report · Power Supply · Boeing 737990ER

Difficulty date
September 22, 2023
Submitted
September 27, 2023
Operation
Air carrier
Aircraft
N434AS
Make and model
Boeing 737990ER
Aircraft serial
61620
Aircraft time
27,636 hours, 8,578 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 LIGHTS AT L1 DOOR AND INSIDE CABIN NOT WORKING. GROUNDED - YES. REPLACED ALL APPLICABLE EMERGENCY LIGHT POWER SUPPLY OPS CHECK GOOD IAW 737-900 AMM 33-51-06-960-806 AND 33-51-00-720-801.