# SDR DALA2024101109969

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 11, 2024
- Submitted: October 11, 2024
- Operation: Air carrier
- Aircraft: [N508DN](https://openairdocs.org/aircraft/N508DN), registered now
- Make and model: Airbus A350-941
- Registry model: [Airbus A350-941](https://openairdocs.org/model/airbus-a350-941) (OpenAirDocs)
- Aircraft serial: 0190
- Aircraft time: 30,036 hours, 2,860 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Battery
- Condition: Failed
- Location: Zone 200
- Stage of operation: IN
- How discovered: C
- Nature of condition: L
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2024101109969

## Discrepancy

WHILE WORKING LOG 0512079, SYSTEM FAULTED EPSU AT 3L. TROUBLE SHOOT FOUND EPSU BATTERY BAD. R/R BATTERY AT 3L (101WL3) REF A350 AMM 33-51 OPS CHECKS GOOD. OK FOR SVC. (LP# 6474403)

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