Model C-177 AD- Loss of Aileron Control

Model C-177 AD- Loss of Aileron Control

Aviation Alerts
Extracted From:
AC No. 43-16A
Alert No. 315
October 2004

Cessna; Model 177; Loss of Aileron Control; ATA 2710

While in flight, the pilot lost aileron control. He applied force to the control yoke and discovered that a total seizure of the ailerons had occurred. He landed the aircraft with rudder control only.

The technician removed the tube assembly (P/N 1767030-13) from the firewall and discovered that the shaft and bearing (P/N 0760633-1) were severely worn.

The submitter implied a dislodged needle bearing jammed the system, preventing yoke rotation for aileron control.

A search of the FAA Service Difficulty Reporting System database revealed two reports of worn bearings; one reported with aileron control binding in flight.

Part total time: 2,598.6 hours.

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