# SDR AALA202406050492

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 4, 2024
- Submitted: June 5, 2024
- Operation: Air carrier
- Aircraft: [N165US](https://openairdocs.org/aircraft/N165US), registered now
- Make and model: Airbus A321-211
- Registry model: [Airbus A321-211](https://openairdocs.org/model/airbus-a321-211) (OpenAirDocs)
- Aircraft serial: 1431
- Aircraft time: 74,391 hours, 28,815 cycles
- System (JASC): [2620 · Extinguishing System](https://openairdocs.org/jasc/2620)
- Part: Warning Light
- Part number: UNKNOWN
- Condition: Illuminated
- Location: Apu Fire Supress
- Stage of operation: CR
- How discovered: V
- Nature of condition: J
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202406050492

## Discrepancy

AIRCRAFT WAS NOT GROUNDED: ENROUTE AFTER ABOUT 2 HOURS INTO FIGHT, THE APU AGENT DISCHARGE LIGHT CAME ON THE OVERHEAD WITH NO MANIPULATION ON PILOTS PART FOR A FEW MINUTES THEN WENT OFF.  NO OTHER INDICATIONS. MAINTENANCE PERFORMED A SATISFACTORY OPERATIONAL CHECK OF THE APU FIRE DETECTION SYSTEM PER AMM 26-13-00 WITH NO ISSUES NOTED.

---
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.