# SDR DALA2021101906446

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 19, 2021
- Submitted: October 19, 2021
- Operation: Air carrier
- Aircraft: [N111DC](https://openairdocs.org/aircraft/N111DC), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 10018
- Aircraft time: 1,771 hours, 1,119 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: None
- Condition: None
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/DALA2021101906446

## Discrepancy

EPSU SYSTEM TEST SHOWS EPSU AFT L (13WL) FAULT. T/S PER A321 TSM 33-51-00-810-836-A. ENSURED ALL 13WL ASSOCIATED LIGHTING OPS NORMALLY. FRONT FACING BITE ON 13WL SHOWED GREEN " GO" INDICATION. REMOVED CONNECTOR FROM 13WL AND RECONNECTED. PERFORMED EPSU SYSTEM TEST, ALL TEST OK. (LP# 6888409)

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