# SDR MTNA20160307002

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 4, 2016
- Submitted: March 7, 2016
- Operation: Air carrier
- Aircraft: [N914FX](https://openairdocs.org/aircraft/N914FX), 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: 293
- Aircraft time: 25,420 hours, 27,215 cycles
- System (JASC): [5751 · Ailerons](https://openairdocs.org/jasc/5751)
- Part: Spar
- Part number: S57610028203
- Condition: Corroded
- Location: Rt Aileron
- 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/MTNA20160307002

## Discrepancy

RIGHT AILERON FRONT SPAR DISCOVERED TO HAVE EXFOLIATION, FILLIFORM CORROSION, DURING VISUAL INSPECTION.  REMOVED FWD SPAR IAW SRM 51-21-42. BLENDED AREAS OF CORROSION ON FWD OB END OF SPAR IAW DRAWING REV 1R,  AND 8110-3 SSR DOCUMENT D1603010, REV 1R.  ALODINE AND PRIMED SPAR IAW SRM 51-21-17 ANBD 51-21-27.  INSTALLED FWD SPAR IAW SRM 51-25-01 ABD 51-25-03.

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