SDR ASAA2025011355250

Service difficulty report · Battery Pack · Boeing 737990ER

Difficulty date: January 13, 2025
Submitted: January 15, 2025
Operation: Air carrier
Aircraft: N248AK
Make and model: Boeing 737990ER
Aircraft serial: 62469
Aircraft time: 30,923 hours, 10,033 cycles
System (JASC): 3350 · Emergency Lighting
Part: Battery Pack
Part number: D71702001
Condition: Discharged
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

WHILE ACCOMPLISHING T/C 78233001 FOUND EMERGENCY LIGHTS AT THE FOLLOWING LOCATIONS INTERIOR OVERHEAD ROWS 3,7,11,17,21 EXTERIOR LEFT OVERWING FWD AND RIGHT OVERWING AFT TO BE INOP. GROUNDED - YES. REPLACED EMERGENCY LT BATTERY PACK ASSY AT ROWS 7 ABC, 22 ABC, 22 DEF ALL LT OP CHK GOOD. REF AMM 33-51-06.