# SDR 2026F00030

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 17, 2026
- Submitted: March 17, 2026
- Operation: General aviation
- Aircraft: [N339QS](https://openairdocs.org/aircraft/N339QS), registered now
- Make and model: Cessna 680A
- Registry model: [Cessna 680A](https://openairdocs.org/model/cessna-680a) (OpenAirDocs)
- Aircraft serial: 0191
- Aircraft time: 14,278 hours, 9,522 cycles
- System (JASC): [5730 · Wing, Plate/Skin](https://openairdocs.org/jasc/5730)
- Part: Skin
- Condition: Corroded
- Location: Zone 600
- 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/2026F00030

## Discrepancy

FOUND 9 AREAS OF CORROSION OF RIGHT WING UPPER SKIN, FWD OF AILERON. MECHANICALLY REMOVED 9 AREAS OF CORROSION LOCATED ON RT WING UPPER SKIN, FWD OF AILERON ON WING SKIN TRAILING EDGE IAW SRM 51-70-02. FOUND 8 CORROSION BLENDS TO BE WITHIN LIMITS IAW SRM 51-70-02 NOT EXCEEDING .002" OF MATERIAL REMOVED FROM NOMINAL THICKNESS AND FOUND 1 CORROSION BLEND TO BE BEYOND LIMITS IAW SRM 51-70-02 EXCEEDING .002" OF MATERIAL REMOVED FROM NOMINAL THICKNESS. PROTECTED BARE METAL ON 8 AREAS WITHIN LIMITS IAW SRM 51-20-01. REPAIRED 1 AREA OF CORROSION BEYOND LIMITS IAW AQRD RFTS-116326 REV. 0.

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