Service difficulty report · Power Supply · Boeing 737990ER

Difficulty date
October 2, 2025
Submitted
October 7, 2025
Operation
Air carrier
Aircraft
N471AS
Make and model
Boeing 737990ER
Aircraft serial
41703
Aircraft time
40,738 hours, 12,607 cycles
Part
Power Supply
Part number
D71702001
Condition
Inoperative
Location
Zone 200
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 AISLE LIGHT AT ROW 9 INOP. GROUNDED - YES. REMOVED AND REPLACED BATTERY PACK M1676 IAW AMM 33-51-06-960-806 OPERATIONAL TEST GOOD. (S/N 117742)