# SDR DALA2020101903400

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 16, 2020
- Submitted: October 19, 2020
- Operation: Air carrier
- Aircraft: [N368DN](https://openairdocs.org/aircraft/N368DN), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 8695
- Aircraft time: 4,670 hours, 1,999 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Condition: Malfunctioned
- Location: Emergency Lights
- Stage of operation: IN
- How discovered: 9
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2020101903400

## Discrepancy

DOOR 3L EMERGENCY EXIT LIGHT + FWD CEILING IDENTIFIER LIGHT FLICKERS.  CORRECTIVE ACTION: PERFORMED EPSU TEST THROUGH CIDS 1, FAULTS EPSU 11WL.  R & R THE 11WL EPSU, PER A321 AMM 33-51.  ALL OPS GOOD, FAULT MESSAGE CLEAR.  NO OTHER DEFECTS NOTED.  ORIGINAL BATTERY REINSTALLED.

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