# SDR AALA202610210881

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 14, 2026
- Submitted: October 21, 2026
- Operation: Air carrier
- Aircraft: [N508AY](https://openairdocs.org/aircraft/N508AY), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 3740
- Aircraft time: 58,892 hours, 22,629 cycles
- System (JASC): [5210 · Passenger/Crew Doors](https://openairdocs.org/jasc/5210)
- Part: Diaphragm
- Condition: Leaking
- Location: Zone 800
- Stage of operation: IN
- How discovered: V
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/AALA202610210881

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE: FOUND R4 PAX DOOR ASSIST BOTTLE LOW PRESSURE. MAINTENANCE REMOVED R4 DOOR DIAPHRAGM PER A321 AMM 52-10-00-610-001-A LATE ENTRY: INSTALLED R4 DOOR DIAPHRAGM PER A321 AMM 52-10-00-610-001-A. CHARGED R4 PAX DOOR ASSIST BOTTLE IAW A31/321 AMM 52-10-00.

---
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.