# SDR COEA2013121018923

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: October 8, 2013
- Submitted: December 10, 2013
- Operation: Air carrier
- Aircraft: N923FX
- 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: 135
- Aircraft time: 30,905 hours, 38,940 cycles
- System (JASC): [5534 · Vertical Stabilizer Miscellaneous Structure](https://openairdocs.org/jasc/5534)
- Part: Structure
- Part number: S53979011200
- 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/COEA2013121018923

## Discrepancy

HEAVY CHECK, MAJOR REPAIR.  AFT DORSAL FIN HAS NUMEROUS AREAS OF LEVEL 2 CORROSION AROUND THE NUT PLATES.  REPLACED PART BY FABRICATION IAW ATR42 SRM 55-35-30 REV 100 FIGURE 101.

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