# SDR TRBA201120206

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: June 21, 2011
- Submitted: July 21, 2011
- Operation: Air carrier
- Aircraft: N429AT
- Make and model: Aerosp ATR 72-212
- Registry model: [Aerosp ATR 72-212](https://openairdocs.org/model/aerospatiale-atr-72-212) (OpenAirDocs)
- Aircraft serial: 429
- Aircraft time: 32,922 hours, 29,713 cycles
- System (JASC): [5753 · Trailing Edge Flaps](https://openairdocs.org/jasc/5753)
- Part: Rib
- Part number: S5751210520212
- Condition: Corroded
- Location: Rt 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/TRBA201120206

## Discrepancy

DURING THE MX BASE CHECK FOUND CORROSION ON THE RT OTBD FLAP ASSY RIB.  THE ACFT WAS REMOVED FROM SERVICE.   CORROSION WAS FOUND OUT OF LIMITS ON RT OTBD FLAP ASSY RIB.  CLEANED LIGHT SURFACE CORROSION ON RT OTBD FLAP SUPPORT ATTACH POINT IAW SRM 51-21-42. TREATED, PRIMED AND TOP COATED AREA IAW SRM 51-21-17 AND 51-21-27.

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