Service difficulty report · Battery Pack · Boeing 737990ER

Difficulty date
November 20, 2022
Submitted
November 29, 2022
Operation
Air carrier
Aircraft
N493AS
Make and model
Boeing 737990ER
Aircraft serial
41727
Aircraft time
24,037 hours, 7,561 cycles
Part
Battery Pack
Part number
D71702001
Condition
Discharged
Location
Emergency Lights
Stage of operation
IN
How discovered
9
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 ACCOMPLISHMENT OF ASA T/C 78233008 OPS CHECK OF EMERGENCY LIGHTS AISLE EMERGENCY LIGHT AT SEAT ROW 27ABC IS INOP. GROUNDED - YES. VERIFIED- INSTALLED NEW EMERGENCY LT ASSY - NO HELP. REF B737-900 MM 33-51-06, REMOVED/ & REPLACED M2626 POWER SUPPLY/BATT ASSY. OPS NORMAL REF SAME. ORIG SUB DATE: 11/23/2022