# SDR MTNA0903001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: February 18, 2009
- Submitted: March 5, 2009
- Operation: Air carrier
- Aircraft: [N910FX](https://openairdocs.org/aircraft/N910FX), 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: 277
- Aircraft time: 23,211 hours, 26,576 cycles
- System (JASC): [5711 · Wing Spar](https://openairdocs.org/jasc/5711)
- Part: Spar
- Condition: Corroded
- Location: Lt Wing
- 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/MTNA0903001

## Discrepancy

CORROSION ON LEFT WING REAR SPAR BETWEEN RIBS 28 AND RIBS 29.  BLENDED OUT IAW ATR STRUCTURAL REPAIR INSTRUCTION DO/TS/-721/09-11337.

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