# SDR COEA0703901

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 30, 2007
- Submitted: August 27, 2007
- Operation: Air carrier
- Aircraft: [N901FX](https://openairdocs.org/aircraft/N901FX), registered now
- Make and model: Aerosp ATR 42-320
- Registry model: [Aerosp ATR 42-320](https://openairdocs.org/model/aerospatiale-aeritalia-atr-42-320) (OpenAirDocs)
- Aircraft serial: 172
- Engine: Pwa PW121
- System (JASC): [5753 · Trailing Edge Flaps](https://openairdocs.org/jasc/5753)
- Part: Guide
- Part number: S5751014800200
- Condition: Corroded
- Location: Lt Wing Te Flap
- 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/COEA0703901

## Discrepancy

CORROSION FOUND DURING HEAVY CHECK.  LT WING OB FLAP CAM GUIDE NR 4 AT RIB 16 HAS AREA OF LEVEL 2 CORROSION.  REMOVED AND REPLACED FLAP CAM GUIDE NR 4 AT RIB 16.  FABRICATED REPAIR SCHEME IAW SRM 57-53-20.  (K)

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