Service difficulty report · Battery Pack · Boeing 737990

Difficulty date
September 17, 2023
Submitted
September 18, 2023
Operation
Air carrier
Aircraft
N315AS
Make and model
Boeing 737990
Aircraft serial
30019
Aircraft time
68,303 hours, 27,757 cycles
Part
Battery Pack
Part number
D71702001
Condition
Inoperative
Location
Main Cabin
Stage of operation
IN
How discovered
O
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

DURING COMPLETION OF TC 78233001 LH & RH OVER-WING EMERGENCY EXIT LIGHTS FAILED TO REMAIN ON FOR 15 MINUTES MINIMUM. GROUNDED - YES. REPLACED EMERGENCY LIGHTS RH POWER SUPPLY AND BATTERY PACK, AND LH BATTERY PACK M1695, M1694 REF AMM 33-51-06 AND WDM 33-51-13-3, OPS NORMAL.