# SDR 2026FA0000652

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 18, 2026
- Submitted: August 19, 2026
- Operation: General aviation
- Aircraft: [N688QS](https://openairdocs.org/aircraft/N688QS), registered now
- Make and model: Cessna 680A
- Registry model: [Cessna 680A](https://openairdocs.org/model/cessna-680a) (OpenAirDocs)
- Aircraft serial: 680A0222
- Aircraft time: 7,058 hours, 4,672 cycles
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Skin
- 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/2026FA0000652

## Discrepancy

MECHANICALLY REMOVED CORROSION LOCATED ON RT SIDE OF STINGER SKIN, UPPER VORTEX GENERATOR ATTACHMENT AREA IAW SRM 51-70-03. FOUND CORROSION BLENDS TO BE BEYOND SRM 51-70-03 LIMITATIONS EXCEEDING .002" OF MATERIAL REMOVED FROM NOMINAL THICKNESS. PERFORMED AN EDDY CURRENT AND ULTRASONIC THICKNESS INSPECTION ON THE BLENDED AREA OF THE STRINGER SKIN RT SIDE UNDERNEATH UPPER VORTEX GENERATOR. NO CRACK/CORROSION INDICATIONS FOUND AT THE TIME OF INSPECTION. THICKNESS MEASUREMENTS RECORDED FOR EVALUATION. REPAIRED CORRODED TAILCONE STINGER LH SKIN PER AQRD RFTS-118260, REV. 0.

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