# SDR COEA2012060604917

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 6, 2012
- Submitted: June 29, 2012
- Operation: Air carrier
- Aircraft: [N917FX](https://openairdocs.org/aircraft/N917FX), 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: 354
- Aircraft time: 23,866 hours, 30,949 cycles
- System (JASC): [5531 · Vertical Stabilizer, Spar/Rib](https://openairdocs.org/jasc/5531)
- Part: Stiffener
- Part number: S55371100234
- Condition: Corroded
- Location: Vertical Stab
- 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/COEA2012060604917

## Discrepancy

HEAVY CHECK / LEVEL 2 CORROSION:  VERTICAL STAB FWD SPAR WEB HAS CORROSION ON THE 2ND AND 3RD STIFFENERS FROM THE TOP (LENGTH .5", WIDTH 6", DEPTH .53").  REMOVED AND REPLACED STIFFENER WITH OEM PART PER ATR42 SRM.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.