# SDR DALA2025042103034

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 12, 2025
- Submitted: April 21, 2025
- Operation: Air carrier
- Aircraft: [N576DN](https://openairdocs.org/aircraft/N576DN), registered now
- Make and model: Airbus A321-271NX
- Registry model: [Airbus A321-271NX](https://openairdocs.org/model/airbus-s-a-s-a321-271nx) (OpenAirDocs)
- Aircraft serial: 11899
- Aircraft time: 3,266 hours, 838 cycles
- System (JASC): [3520 · Passenger Oxygen System](https://openairdocs.org/jasc/3520)
- Part: Oxygen Box
- Condition: No Test
- Location: Zone 200
- 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/DALA2025042103034

## Discrepancy

SHIP 5076 SEATS 5AB PSU PANEL WONT DROP DURING MASK DROP. CORRECTIVE ACTION: REMOVED AND REPLACED PSU PANEL 5AB WITH SERVICEABLE UNIT IAW A321 AMM 35-21-41 (6443064)

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