SDR AALA202412308003

Service difficulty report · Battery Pack · Boeing 7878

Difficulty date: April 30, 2024
Submitted: December 30, 2024
Operation: Air carrier
Aircraft: N816AA
Make and model: Boeing 7878
Aircraft serial: 40634
Aircraft time: 30,601 hours, 4,159 cycles
System (JASC): 3350 · Emergency Lighting
Part: Battery Pack
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

AIRCRAFT WAS NOT GROUNDED: PER W/C : 78T21033001 : EMERGENCY LIGHTING SYSTEM OPERATIONAL CHECK STEP C, WBU 03, NEEDS TO BE REPLACED. **SUPPLEMENTAL SDR FOR AALA202405038003** (CLOSED) MAINTENANCE REPLACED, WELS BATTERY WCU03, PER TASK CARD 78C20033001.

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