Airworthiness Directives; The Enstrom Helicopter Corporation Model F-28A, F-28C, F-28C-2, 280, and 280C Series Helicopters

Summary

The Federal Aviation Administration (FAA) proposes to supersede an existing airworthiness directive for The Enstrom Helicopter Corporation Model F-28A, F-28C, F-28C-2, 280, and 280C series helicopters to expand inspections and establish a retirement life for certain bearings.