# SDR 2025F00214

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: August 29, 2025
- Submitted: August 29, 2025
- Operation: General aviation
- Aircraft: [N357QS](https://openairdocs.org/aircraft/N357QS), registered now
- Make and model: Cessna 680A
- Registry model: [Cessna 680A](https://openairdocs.org/model/cessna-680a) (OpenAirDocs)
- Aircraft serial: 6800155
- Aircraft time: 15,072 hours, 10,012 cycles
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Skin
- Condition: Damaged
- 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/2025F00214

## Discrepancy

REPAIRED CORROSION UNDER THE BAGGAGE FLOOR BOARDS ON THE TAILCONE SKIN AND STRINGERS BETWEEN FS 501.25 AND FS 548.50 PER AQRD ERO-985795 REV.A, TITLED "N357QS TAILCONE SKIN CORROSION" DATED AUG 28, 2025. SUPPORTED BY FAA FORM 8110-3 DATED 08/28/2025. THE FATIGUE AND DAMAGE TOLERANCE (F&DT) EVALUATION REQUIRED PER 14 CFR PART 25, 25.571 IS NOT INCLUDED AS PART OF THIS ENGINEERING DOCUMENT. PER NETJETS AVIATION, INC. GENERAL MAINTENANCE MANUAL CHAPTER 11 - THE F&DT EVALUATION MUST BE COMPLETED WITHIN 12 MONTHS FROM THE DATE OF ISSUE OF THE ASSOCIATED 8110-3. THE AIRCRAFT AT THE TIME OF REPAIR HAD 15,071.9 FLIGHT HOURS AND 10,012 FLIGHT CYCLES. (ALTERNATE TERMINATING ACTIONS TO THE F&DT EVALUATION REQUIREMENT MUST BE SEPARATELY APPROVED AND ARE NOT INCLUDED IN THIS ERO.)

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