Summary
This action withdraws a notice of proposed rulemaking (NPRM) that proposed a new airworthiness directive (AD) for the Bell Helicopter Textron, Inc. (BHTI) Model 412 high landing gear aft crosstube assembly (crosstube assembly) that would have required determining the number of landings, inspecting for damage, vibro- etching a part number (P/N) and a serial number (S/N), creating a component history card or equivalent record, establishing a retirement life, and replacing each unairworthy crosstube assembly. Since the issuance of the NPRM, the FAA has determined that the NPRM contained incorrect part numbers. Also, the FAA is conducting a more thorough review of the service history to determine whether a yearly inspection of the crosstube assembly is a better corrective action. Accordingly, the proposed rule is withdrawn.