EASA SIB CE-11-01
Piper PA-28, PA-32, PA-34 and PA-44 series - Horizontal Stabilator Turnbuckle
Summary
The Special Airworthiness Information Bulletin SAIB: CE-11-01 is an FAA informational bulletin addressing a potential airworthiness concern involving the horizontal stabilator turnbuckle and control cable assembly on Piper PA-28, PA-32, PA-34, and PA-44 series airplanes. The issue involves stress corrosion cracking that could lead to failure of the turnbuckle/control cable assembly and loss of pitch control. This bulletin applies to all serial numbers of the specified Piper models.
What Changed
This SAIB introduces awareness of the potential failure of the horizontal stabilator turnbuckle/control cable assembly due to stress corrosion cracking. It does not mandate regulatory action but recommends inspection procedures to detect corrosion or cracking. The bulletin references Piper Service Letter No. 1069 for inspection intervals and procedures.
Why It Matters
This information is critical for operators, maintenance personnel, and compliance teams to prevent possible loss of pitch control caused by turnbuckle failure. Early detection of corrosion or cracking can enhance flight safety and reduce the risk of in-flight control issues. Understanding this concern helps ensure continued airworthiness of affected Piper aircraft.
What To Do
Operators and maintenance providers should incorporate the inspection procedures outlined in Piper Service Letter No. 1069, performing inspections of flight control cables and fittings every 100 flight hours or at each annual inspection. Visual inspections should focus on cable terminals, turnbuckles, and fittings for signs of corrosion or cracking, with immediate replacement if any damage is found.
AI-generated summary from official EASA source document. Always verify against the original.