# SDR AALA201909109008

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 9, 2019
- Submitted: September 10, 2019
- Operation: Air carrier
- Aircraft: [N155NN](https://openairdocs.org/aircraft/N155NN), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 6940
- Aircraft time: 12,129 hours, 4,580 cycles
- System (JASC): [2560 · Emergency Equipment](https://openairdocs.org/jasc/2560)
- Part: Power Unit
- Part number: UNIT1247004015
- Part serial: 147760
- Condition: Faulty
- Location: Cabin
- Stage of operation: NR
- 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/AALA201909109008

## Discrepancy

AIRCRAFT NOT GROUNDED: FLOOR AND CEILING EMERGENCY EXIT LIGHT ON BRIGHT UNDER NORMAL PWR IN FLIGHT AT L3 AND L4 LEFT AND RIGHT. REMOIVED AND REPLACED 12WL POWER SUPPLY UNIT AND BATTERY IAW  AMM 33-51-38.

---
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.