# SDR MTNA0725110001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 25, 2011
- Submitted: August 23, 2011
- Operation: Air carrier
- Aircraft: [N920FX](https://openairdocs.org/aircraft/N920FX), registered now
- Make and model: Aerosp ATR 42-300
- Registry model: [Aerosp ATR 42-300](https://openairdocs.org/model/aerospatiale-aeritalia-atr-42-300) (OpenAirDocs)
- Aircraft serial: 325
- Aircraft time: 23,864 hours, 30,300 cycles
- System (JASC): [5714 · Wing, Center Box](https://openairdocs.org/jasc/5714)
- Part: Housing
- Part number: S57110919200
- Condition: Corroded
- Location: Center Wing
- Part time: 23,864 hours, 30,300 cycles
- 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/MTNA0725110001

## Discrepancy

FOUND PITTING CORROSION ON THE HOUSINGS.  REPAIRED USING ATR STRUCTURAL REPAIR APPROVAL SHEET NUMBER DO/TS-4415/11.

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