# SDR 99ZZZX1391

- Type: Service difficulty report (as reported; unverified)
- Difficulty date: January 27, 1999
- Submitted: March 26, 2000
- Operation: General aviation
- Aircraft: [N4HP](https://openairdocs.org/aircraft/N4HP), registered now
- Make and model: Cessna 172R
- Registry model: [Cessna 172R](https://openairdocs.org/model/cessna-172r) (OpenAirDocs)
- Aircraft serial: 17280302
- System (JASC): [2710 · Aileron Control System](https://openairdocs.org/jasc/2710)
- Part: Guide Assy
- Part number: 05130893
- Condition: Malfunctioned
- Location: Fuselage
- Part time: 461 hours
- Stage of operation: IN
- Nature of condition: O
- Precautionary procedure: K
- FAA source: FAA Service Difficulty Reporting System (https://sdrs.faa.gov/)
- Page: https://openairdocs.org/sdr/99ZZZX1391

## Discrepancy

LEFT UPPER SIDE OF CONTROL YOKE ROLLER IS DISENGAGING FROM SUPPORT GUIDE WHEN SIDE PRESSURE IS APPLIED TO YOKE. CESSNA HAS FOUND THAT THE CONTROL YOKES IN ARE NOT WELDED CORRECTLY. REPLACED YOKE AND LEFT GUIDE SUPPORT, OPS CHECKS NORMAL.

---
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.