Service difficulty report · Power Supply · Boeing 737990ER

Difficulty date
December 18, 2024
Submitted
December 20, 2024
Operation
Air carrier
Aircraft
N435AS
Make and model
Boeing 737990ER
Aircraft serial
43292
Aircraft time
41,551 hours, 12,981 cycles
Part
Power Supply
Part number
D71702001
Condition
Inoperative
Location
Zone 200
Component
Emergency Power
Component part number
D71702001
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

EMERGENCY LIGHT ASSOCIATED WITH BATTERY PACK M1676 ARE INOP. GROUNDED - YES. REMOVED, REPLACED AND PERFORMED INSTALL TEST OF EMERGENCY POWER SUPPLY M1676 PER B737-900 AMM 33-51-06-960-806, TEST GOOD.