Service difficulty report · Battery Pack · Boeing 737990ER

Difficulty date
April 20, 2026
Submitted
April 22, 2026
Operation
Air carrier
Aircraft
N251AK
Make and model
Boeing 737990ER
Aircraft serial
62470
Aircraft time
35,323 hours, 11,466 cycles
Part
Battery Pack
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

INTERIOR EMER LIGHTS BETWEEN ROW 1-11 ON LH SIDE INOP. GROUNDED - YES. REPLACED LH ROW 1-11 EMER LIGHT BATTERY PACK IAW AMM 33-51-06. OPS CHECK GOOD. 4APR676B.