# SDR 2011FA0000036

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: December 30, 2010
- Submitted: January 21, 2011
- Operation: General aviation
- Aircraft: [N35377](https://openairdocs.org/aircraft/N35377), registered now
- Make and model: Cessna 172I
- Registry model: [Cessna 172I](https://openairdocs.org/model/cessna-172i) (OpenAirDocs)
- Aircraft serial: 17256740
- System (JASC): [5711 · Wing Spar](https://openairdocs.org/jasc/5711)
- Part: Spar
- Condition: Cracked
- Location: Rt Wing
- 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/2011FA0000036

## Discrepancy

(GY1R) UPON INSP OF THE RT INBD FLAP, THE FLAP TRACK HAD EXCESSIVE MOVEMENT WHICH REVEALED A CRACKED REAR SPAR AT THE LOWER FLAP TRACT ATTACH POINT AND A CRACKED INBD FLAP TRACK LOWER BRACKET SECTION.  THE PROBABLE CAUSE WAS THAT THE FLAP WAS OUT OF RIG, CAUSING THE FLAP TO BE DRAWN UP TOO TIGHT INTO THE FLAP CHANNEL.  RECOMMENDATIONS: PROPER FLAP RIGGING AND FLAP INSPECTIONS.

---
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.