Service difficulty report · Battery · Boeing 737990ER

Difficulty date
December 30, 2023
Submitted
February 10, 2024
Operation
Air carrier
Aircraft
N402AS
Make and model
Boeing 737990ER
Aircraft serial
41189
Aircraft time
41,482 hours, 13,156 cycles
Part
Battery
Part number
D71701100
Condition
No Test
Location
Emergency Lights
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

LEFT OVERWING EMERGENCY LIGHTS FAILED BATTERY TEST. GROUNDED - YES. REMOVED AND INSTALLED SERVICEABLE BATTERY PACKS & CHARGER S/N 213871 OPS CHECKS GOOD IAW B737-900 AMM 33-51-06-960-805, 33-51-06-960-806.