EASA SIB CE-12-19
Cessna 500, 501 and 550 Aeroplanes — modified by Sierra Industries STC SA80RM or SA152RM
The Special Airworthiness Information Bulletin SAIB: CE-12-19 is an FAA informational bulletin concerning Cessna Aircraft Company Models 500, 501, and 550 airplanes modified with Sierra Industries Supplemental Type Certificates SA80RM or SA152RM. It addresses updated instructions for continued airworthiness related to the auxiliary fuel tank installed by these STCs. The bulletin highlights revised maintenance and inspection procedures to prevent fuel leaks in the auxiliary fuel system.