CIRRUS SR22 TURBO — Service Bulletins

This Service Bulletin (TAT SB10-01) issued by Tornado Alley Turbo is mandatory for all Cirrus Design SR22 aircraft equipped with the Tornado Alley Turbo Inc. Turbonormalizing System. The bulletin outlines the necessary inspections and potential modifications required to ensure the safety and functionality of the alternate air door assembly. Specifically, it instructs owners to inspect the hinge pin ends for cracks, loose rivets, and missing retention methods that could lead to damage of the turbocharger. The bulletin emphasizes the importance of compliance within specified time frames and provides detailed instructions for inspection and installation of a hinge pin stop rivet if necessary.

• Mandatory compliance with the bulletin is required within 50 hours or at the next maintenance event.
• Inspect alternate air door hinge pin ends for cracks and loose rivets at the next 50-hour inspection and annually thereafter.
• Installation of a hinge pin stop rivet may be necessary to prevent hinge pin slippage.
• Use only Cherry CR3213-4-04 rivets for hinge pin stop installation.
• Contact Tornado Alley Turbo for parts availability and repair instructions if needed.