February 2003 - Atlantic Aero, Inc. Announces An STC For Deactivation of Learjet 30 Series/Aeronca Thrust Reverser

Atlantic Aero announced approval of a Supplemental Type Certificate (STC) for the deactivation of Aeronca thrust reversers installed on an estimated 300 Learjet 35 and 36 series airplanes. The supply of parts for Aeronca thrust reverser systems has become limited. Without a consistent parts supply, operators have opted to pin irreparable thrust reversers per the maintenance manual. However, a recent interpretation by the FAA's Western Region calls for the repair and return to service of pinned thrust reversers at the next major inspection interval, which recurs at 1,400 flight hours.

With this STC, operators will have the option of permanently deactivating thrust reversers. The STC calls for electrical deactivation of the thrust reversers, the removal of the air motors and cables that operate the blocker doors, and the installation of new rails to fully immobilize the units. The net effect of the STC is a 138-pound reduction in aircraft empty weight. "We believe this is an important STC for Learjet 35 and 36 operators. It provides a safe, efficient means to solve the problem of thrust reversers that simply can't be economically maintained," said Jim Spinder, President of Atlantic Aero. He added, "We have customers with fleets of Learjet’s that were facing the shutdown of their operations."