A new airworthiness directive (AD) for the Learjet 45 stems from a report of two cases of premature corrosion on the structural support flange for the engine thrust reverser. The AD requires inspecting for any corrosion, and damage to the sealant; installing sealants and gaskets; and related investigative and corrective action as necessary.
The FAA is proposing an airworthiness directive for the Agusta A109E and A109S based on cases of damage to the main drive shaft caused by improperly secured metallic spacers. The AD would require a one-time inspection of the lower semichannel assemblies to determine proper installation of the metallic spacers on the semichannels and for the correct seating of the gaskets. The FAA is taking comments until July 23.
French plastics specialist Saint-Gobain Performance Plastics is showcasing materials made from its Meldin 7000 lightweight, high-temperature polymer on Stand E138 Hall 2B.
Three months ago the FAA issued an “Unapproved Parts Notification” for O-rings sold by Chatsworth Rubber and Gasket. Yesterday the owner of that company was sentenced to 30 months in federal prison for selling uncertified rubber gaskets that were installed on Boeing 737s. Duane Lepire, 74, of Woodland Hills, Calif., was sentenced after pleading guilty last April to one count of fraud in the sale of aircraft parts.