SDR DALA2026010600104

Service difficulty report · Battery Pack · Airbus A350941

Difficulty date: January 5, 2026
Submitted: January 6, 2026
Operation: Air carrier
Aircraft: N529DN
Make and model: Airbus A350941
Aircraft serial: 0735
Aircraft time: 2,587 hours, 205 cycles
System (JASC): 3350 · Emergency Lighting
Part: Battery Pack
Condition: Faulted
Location: Zone 200
Stage of operation: IN
How discovered: C
Nature of condition: L, J
Precautionary procedure: K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

AFTER LANDING DISPATCH MESSAGE "CABIN EMER EXIT LIGHT". FAULT CODE 3350F00Q PERFORMED RESET OF CIDS1,2 & BITE TEST OF EPSU, STILL NO HELP. RE RACKED BATTERY PACK (102WL2) OF EPSU, TEST OK. MSG CLEARED PER TSM A350-A-33-51-XX-07001-412A-A & AMM A350-A-25-23-66-01ZZZ-520Z-A. (LP# 8399756)

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