November 7, 2024

The FAA has adopted two new airworthiness directives (ADs) for the tail boom attachment components of certain Bell Textron Inc. helicopter models.

The FAA is adopting a new airworthiness directive (AD) for Lycoming engines that have a certain connecting rod assemblies installed. This AD was prompted by several reports of connecting rod failures, which resulted in uncontained engine failure and in-flight shutdowns.

The FAA has received three reports of R22 Beta and R44 II governor controller failures which resulted in underspeed or overspeed events, two of which resulted in hard landings which caused significant damage to the helicopter. Each of these separate incidents occurred after significant rainfall where the helicopter was exposed to those weather conditions.

The FAA has received reports of loose P/N D276-1 and D276-3 gearmotors on Robinson Model R44-series helicopters. Investigation has determined the cause to be related to poor dimensional control of certain internal countersunk head screws and the potential absence of thread locking adhesive in a population of gearmotors that left the manufacturer.