# SDR AALA202605219399

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 23, 2026
- Submitted: May 21, 2026
- Operation: Air carrier
- Aircraft: [N105NN](https://openairdocs.org/aircraft/N105NN), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 5904
- Aircraft time: 44,057 hours, 8,864 cycles
- System (JASC): [5315 · Fuselage Main, Floor Beam](https://openairdocs.org/jasc/5315)
- Part: Floorbeam
- Part number: D5323551621100
- Condition: Corroded
- Location: Zone 200
- 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/AALA202605219399

## Discrepancy

AIRCRAFT IN BASE MAINTENANCE: CORROSION ON MID CABIN FLOOR SUPPORT BEAM AT FR 35.2 AND -Y1732. REPLACED FLOOR SUPPORT BEAM PER SRM 51-72-11.

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