# SDR AALA201710199026

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 2, 2017
- Submitted: October 22, 2017
- Operation: Air carrier
- Aircraft: [N973UY](https://openairdocs.org/aircraft/N973UY), registered now
- Make and model: Airbus A321-231
- Registry model: [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231) (OpenAirDocs)
- Aircraft serial: 4893
- Aircraft time: 21,479 hours, 7,987 cycles
- System (JASC): [5320 · Fuselage Miscellaneous Structure](https://openairdocs.org/jasc/5320)
- Part: Floor Support
- Part number: D53112818204
- Condition: Corroded
- Location: Fuselage
- 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/AALA201710199026

## Discrepancy

AIRCRAFT WAS IN BASE MAINTENANCE.  CORROSION ON CENTER LEFT FLOOR SUPPORT BEAM BETWEEN FUSELAGE FRAMES 16 AND 18, S23L, Y254.  REMOVED AND REPLACED FLOORBEAM PER SRM 51-42-11, SRM 51-43-12, AND AIRBUS DRAWING D53112816.

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