Service difficulty report · Battery Pack · Boeing 737990ER

Difficulty date
June 15, 2026
Submitted
June 19, 2026
Operation
Air carrier
Aircraft
N409AS
Make and model
Boeing 737990ER
Aircraft serial
41733
Aircraft time
47,966 hours, 15,207 cycles
Part
Battery Pack
Part number
ADD71701100
Condition
Faulted
Location
Zone 200
Stage of operation
IN
How discovered
V
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

EMERGENCY LIGHTS OUT AT, ROWS LEFT ROW 27 AND RIGHT ROWS 9,13, 25 AND 29. GROUNDED - YES. REMOVED AND REPLACED BATTERIES FOR EMERGENCY LIGHTS ON ROWS 9,13,25,27, AND 29. IAW AMM 33-51-06-960-805. OPS CHECKED GOOD.