- Public Inspection
This document proposes superseding an existing airworthiness directive (AD) for MD Helicopters, Inc. (MDHI) Model MD900 helicopters. That AD currently requires reducing the life limit of certain Notar fan system tension-torsion (TT) straps. That AD also requires, at a specified time interval, removing each affected TT strap from the helicopter,...
This amendment proposes superseding an existing airworthiness directive (AD) for the specified Eurocopter France (ECF) model helicopters that currently requires replacing each affected main rotor head torsion tie bar (tie bar) with an airworthy tie bar and revising the limitations section of the maintenance manual by adding life limits for...