Service difficulty report · Power Supply · Boeing 737990ER

Difficulty date
October 30, 2020
Submitted
November 3, 2020
Operation
Air carrier
Aircraft
N491AS
Make and model
Boeing 737990ER
Aircraft serial
44109
Aircraft time
18,900 hours, 6,044 cycles
Part
Power Supply
Part number
D71702001
Condition
Inoperative
Location
Emergency Lights
Stage of operation
IN
How discovered
C
Nature of condition
L
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

L2 DOOR EMERGENCY LIGHT INOPERABLE. GROUNDED-YES. RELAMPED LIGHT AT L2 DOOR EXTERIOR LIGHT. NO HELP, CHECKED FOR VOLTAGE AT LIGHT ASSEMBLY WITH NO VOLTAGE FINDINGS. REPLACED LT AFT GALLEY POWER SUPPLY AND BATTERY, REF B737-900 AMM 33-51-06. L2 DOOR EXTERIOR LIGHT ILLUMINATES.