# SDR FQAR20170708064

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: July 8, 2017
- Submitted: July 11, 2017
- Operation: General aviation
- Filed by: [Bird Acquisition LLC., repair station FQAR173S](https://openairdocs.org/faa-repair-station/FQAR173S/bird-acquisition-llc.md) (OpenAirDocs)
- Aircraft: [N922PA](https://openairdocs.org/aircraft/N922PA), registered now
- Make and model: Piper PA-28-181
- Registry model: [Piper PA-28-181](https://openairdocs.org/model/piper-pa-28-181) (OpenAirDocs)
- Aircraft serial: 2843270
- Aircraft time: 17,906 hours
- Engine: Lyc O360A4M
- System (JASC): [5330 · Fuselage Main, Plate/Skin](https://openairdocs.org/jasc/5330)
- Part: Stiffener
- Condition: Cracked
- Location: Bs 140
- 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/FQAR20170708064

## Discrepancy

DURING INSPECTION, A THIN STIFFENER RIVETED TO THE BELLY SKIN BELOW THE BAGGAGE AREA WAS FOUND CRACKED. IT APPEARS THAT OIL CANNING OF THE SKIN CAUSES THE STIFFENERS TO CRACK.

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