EASA SIB CE-11-36
Cessna 172S Aeroplanes- Frayed Aileron Cables
Summary
The Special Airworthiness Information Bulletin SAIB: CE-11-36 is an FAA advisory addressing the potential issue of frayed aileron cables on Cessna Model 172S airplanes. It informs owners, operators, and maintenance personnel about observed wear in the aileron control system cables found during routine inspections. This bulletin does not mandate corrective action but provides important information on inspection and maintenance.
What Changed
This bulletin introduces awareness of premature wear and fraying in the aileron cables of Cessna 172S aircraft, identifying specific wear locations such as cabin overhead pulleys, wing rib rub strips, and fairleads near the roll autopilot servo. It also announces that Cessna is developing a service bulletin to improve cable life, expected before September 2011.
Why It Matters
This information is critical for aviation professionals to ensure continued airworthiness and safe flight control operation of Cessna 172S airplanes. Early detection of frayed cables can prevent potential flight control issues, supporting maintenance planning and risk management. Operators and maintenance teams can use this advisory to enhance inspection routines and avoid unexpected cable failures.
What To Do
Operators and maintenance personnel should follow the inspection procedures detailed in Chapter 27 of the Cessna 172 Maintenance Manual, performing inspections every 200 flight hours as recommended. They should monitor for cable wear at the specified locations and await the forthcoming Cessna service bulletin for possible cable life improvements. No immediate mandatory action is required, but adherence to inspection intervals is advised.