# SDR AALA202012249013

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 21, 2020
- Submitted: January 4, 2021
- Operation: Air carrier
- Aircraft: [N156UW](https://openairdocs.org/aircraft/N156UW), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 5684
- Aircraft time: 22,523 hours, 9,045 cycles
- System (JASC): [2620 · Extinguishing System](https://openairdocs.org/jasc/2620)
- Part: Control Panel
- Part number: 330TS08Y
- Part serial: 893
- Condition: Defective
- Location: Fire Suppression
- Part time: 51,330 hours, 29,384 cycles
- Stage of operation: DE
- How discovered: O
- Nature of condition: J
- Precautionary procedure: O
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202012249013

## Discrepancy

AIRCRAFT WAS NOT GROUNDED.  AT TOP OF DESCENT THE APU DISCHARGE LIGHT ILLUMINATED.    REPLACED FIRE PANEL 1WD AND ACCOMPLISHED A SATISACTORY OPERATIONAL CHECK PER AMM 26-12-12.

---
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.
