Service difficulty report · Battery Pack · Boeing 737990ER

Difficulty date
December 16, 2024
Submitted
December 17, 2024
Operation
Air carrier
Aircraft
N419AS
Make and model
Boeing 737990ER
Aircraft serial
41734
Aircraft time
43,397 hours, 13,598 cycles
Part
Battery Pack
Part number
ADD71701100
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

DURING T/C 78233008, FOUND RH OVERWING EMERGENCY EXIT SIGNS NOT ILLUMINATING. GROUNDED - YES. REMOVED AND REPLACED BATTERY PACK RELATED TO THE AFFECTED LIGHTS REF AMM 33-51-06. OPS CHECK GOOD. 1EA MIG 51A INSTALLED/REMOVED.