# SDR HYIA20110922001

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: September 22, 2011
- Submitted: November 11, 2011
- Operation: Air carrier
- Aircraft: N42836
- 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: 200
- Aircraft time: 36,410 hours, 43,608 cycles
- System (JASC): [5730 · Wing, Plate/Skin](https://openairdocs.org/jasc/5730)
- Part: Skin
- Condition: Corroded
- Location: Zone 500
- Part time: 36,410 hours, 43,608 cycles
- 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/HYIA20110922001

## Discrepancy

DURING HEAVY CHECK INSPECTION, CORROSION WAS FOUND ON LT WING LOWER SKIN AT AFT SPAR NEAR RIBS 4 AND 7.  CORROSION WAS REMOVED AND BLENDED IAW SRI REF: DP/TS-3-3/11-15470 BY TECH SERVICES UNDER W/O 17010.  APPROVED UNDER STRUCTURAL REPAIR APPROVAL SHEET (SRAS) DO/TS-30300/11...6527.  SUPPLEMENTARY INSPECTION TASK: DVI OF BLENDED AREA FOR NEW CORROSION.

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