# SDR 2024F00105

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: March 30, 2024
- Submitted: March 30, 2024
- Operation: General aviation
- Aircraft: [N919QS](https://openairdocs.org/aircraft/N919QS), registered now
- Make and model: Cessna 680A
- Registry model: [Cessna 680A](https://openairdocs.org/model/cessna-680a) (OpenAirDocs)
- Aircraft serial: 680A0341
- Aircraft time: 1,178 hours, 783 cycles
- System (JASC): [5730 · Wing, Plate/Skin](https://openairdocs.org/jasc/5730)
- Part: Skin
- Part number: 74220863
- Condition: Delaminated
- Location: Zone 500
- Part time: 1,178 hours, 783 cycles
- Stage of operation: IN
- How discovered: O
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/2024F00105

## Discrepancy

THE 7422086-3 LH WING UPPER SKIN BOND ASSEMBLY INSTALLED ON 680A-0341 ESCAPED TO THE FIELD WITH A POSSIBLE NONCONFORMING FINISH ON THE 6922462-1 STRINGER 5. TEST PANELS ASSOCIATED WITH THIS STRINGER PROCESSING BATCH FAILED THE WEDGE CRACK EXTENSION TEST. SUBSEQUENT EXAMINATION REVEALED THE BOND PRIMER DELAMINATED FROM THE PHOSPHORIC ACID ANODIZING. THE QUALITY ESCAPE WAS DOCUMENTED ON QAB2023069.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.