EASA SIB CE-10-01
Cessna "Twins" / Lack of Detent Positions in the Fuel Tank Selector Valve System.
Summary
The Special Airworthiness Information Bulletin SAIB: CE-10-01 is an FAA informational bulletin addressing a fuel tank selector valve system issue in Cessna twin engine reciprocating airplanes, specifically including the Cessna Model 402C. It highlights concerns about the lack of detent positions in the fuel tank selector valve system that can lead to failure in moving the valve to the commanded position, potentially causing total engine power loss.
What Changed
This SAIB introduces awareness of an airworthiness concern related to the fuel tank selector valve system detents in Cessna twin engine aircraft. It does not mandate any regulatory action but provides guidance and recommendations to operators and maintenance personnel to ensure proper detection and servicing of the fuel selector valve system.
Why It Matters
This issue matters because improper adjustment or failure to detect missing detents in the fuel tank selector valve system can result in unreliable valve positioning and engine power loss, posing safety risks. Operators, maintenance organizations, and compliance teams must understand and implement proper inspection and servicing procedures to maintain safe operation of affected aircraft.
What To Do
Owners, operators, and maintenance personnel should thoroughly review and follow the guidance in the Cessna Pilots Operating Handbook, FAA Approved Airplane Flight Manual, maintenance manuals, and FAA Advisory Circular 43.13-1B regarding fuel tank selector valve system checks. They should ensure the presence of definite detents, smooth operation, and proper servicing including inspection, cleaning, and lubrication. No specific compliance deadline is stated.
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