# SDR 2026F00086

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: April 23, 2026
- Submitted: April 23, 2026
- Operation: General aviation
- Aircraft: [N339QS](https://openairdocs.org/aircraft/N339QS), registered now
- Make and model: Cessna 680CE
- Aircraft serial: 6800191
- Aircraft time: 14,278 hours, 9,522 cycles
- System (JASC): [5350 · Aerodynamic Fairings](https://openairdocs.org/jasc/5350)
- Part: Support
- Condition: Corroded
- Location: Zone 100
- 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/2026F00086

## Discrepancy

CORROSION FOUND AROUND AND UNDER NUTPLATES ON LH (P/N 6921340-3) AND RH (P/N 6921340-4) UNDER-FAIRING SUPPORTS FOR PANELS 175BC AND 176BC.  MECHANICALLY REMOVED CORROSION LOCATED AROUND AND UNDER NUTPLATES ON LH (P/N 6921340-3) AND RH (P/N 6921340-4) UNDER-FAIRING SUPPORTS FOR PANELS 175BC AND 176BC IAW CESSNA 680 SRM 51-70-02. FOUND CORROSION BLENDS TO BE BEYOND LIMITS IAW CESSNA 680 SRM 51-70-02 EXCEEDING .002" OF MATERIAL REMOVED FROM NOMINAL THICKNESS. REPAIRED LEVEL 2 PANEL LAND CORROSION FOR BELLY PANELS 175BC AND 176BC PER NETJETS AQRD RFTS-116476, REV. 0, TITLED "N339QS (680-0191) PANEL 175BC AND 176BC LANDS CORROSION, DATED 28 MAR 2026.

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