# SDR AALA201905229008

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: May 21, 2019
- Submitted: May 23, 2019
- Operation: Air carrier
- Aircraft: [N177US](https://openairdocs.org/aircraft/N177US), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 1517
- Aircraft time: 60,636 hours, 22,763 cycles
- System (JASC): [3350 · Emergency Lighting](https://openairdocs.org/jasc/3350)
- Part: Power Supply
- Part number: 32145510
- Part serial: 2274
- Condition: Inoperative
- Location: Cabin
- Part time: 60,805 hours, 22,825 cycles
- 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/AALA201905229008

## Discrepancy

AIRCRAFT IN BASE VISIT: MAINTENANCE FOUND INOP EMERGENCY LIGHT EPSU-EMERGENCY POWER SUPPLY UNIT BATTERY PASSENGER CREW DOOR 843 IN PASSENGER CABIN  (1 EA). MAINTENANCE REPLACED THE EMERGENCY POWER SUPPLY UNIT FIN 14WL IAW AMM 33-51-38-000-001-A.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.