EASA SIB CE-13-07R1
Cessna T206H Aeroplanes — Engine Exhaust Tailpipe V-band Couplings
Summary
The FAA Special Airworthiness Information Bulletin SAIB: CE-13-07R1 addresses the risk of in-flight fire caused by failure of the engine exhaust tailpipe V-band couplings on Cessna T206H airplanes. It highlights issues with the V-band clamps securing the tailpipe to the turbocharger or wastegate components and provides guidance on inspection and replacement procedures for these parts. The bulletin specifically references Cessna part number S1921-1 and approved replacement parts for Model T206H aircraft from 1998 and later.
What Changed
This revision of SAIB CE-13-07 adds clarifications to the background and recommendation sections to correctly identify the configurations of affected FAA-approved V-band coupling parts. It emphasizes the difference between 2-segment and 3-segment V-band couplings and updates recommendations for inspection and replacement intervals based on these findings.
Why It Matters
This information is critical for operators and maintenance personnel of Cessna T206H aircraft to prevent potential in-flight fires caused by exhaust system failures. Proper inspection, adherence to maintenance manual intervals, and use of approved parts reduce safety risks and ensure continued airworthiness. It also highlights the increased corrosion risk for aircraft operating near salt water, impacting maintenance practices.
What To Do
Operators should use only FAA-approved V-band couplings with part number S1921-1 from approved suppliers Eaton (Aeroquip) or National Utilities Company (NUCO) when replacing tailpipe clamps. They must follow the Cessna T206H Maintenance Manual Revision 16 or later for inspection intervals, torque requirements, and installation procedures. Exhaust system V-band couplings should be replaced at or before 400 hours time-in-service, and pre-flight inspections should include checks for tailpipe security. Aircraft operating near salt water should be regularly rinsed and washed to prevent corrosion.