Action
Notice of proposed rulemaking (NPRM).
Summary
We propose to adopt a new airworthiness directive (AD) for the specified Bell model helicopters. This proposed AD would require revising the Operating Limitations, Section 1, of the Rotorcraft Flight Manual (RFM) to add an operating limitation when a litter kit is installed. This proposed AD is prompted by the need for corresponding operating limitations prohibiting flight, including hover, with the litter doorpost removed when certain litter kits are installed. The actions specified by this proposed AD are intended to add an operating limitation when a litter kit is installed to prohibit flight with the doorpost removed to prevent loss of structural integrity of the fuselage.