Federal Aviation Administration April 2, 2019 – Federal Register Recent Federal Regulation Documents

This amendment adopts miscellaneous amendments to the required IFR (instrument flight rules) altitudes and changeover points for certain Federal airways, jet routes, or direct routes for which a minimum or maximum en route authorized IFR altitude is prescribed. This regulatory action is needed because of changes occurring in the National Airspace System. These changes are designed to provide for the safe and efficient use of the navigable airspace under instrument conditions in the affected areas.

We are revising an earlier proposal for certain Gulfstream Aerospace Corporation (Gulfstream) Model G-IV and Model GIV-X airplanes. This action revises the notice of proposed rulemaking (NPRM) by proposing to require a later revision of the service information to update the life limits and inspection requirements in the airworthiness limitations section (ALS) of the aircraft maintenance manual (AMM). We are proposing this airworthiness directive (AD) to address the unsafe condition on these products. Since these actions would impose an additional burden over those in the NPRM, we are reopening the comment period to allow the public the chance to comment on these changes.

We are adopting a new airworthiness directive (AD) for Bell Helicopter Textron Canada Limited (BHTC) Model 429 helicopters. This AD requires inspecting each main rotor pitch link rod end bearing assembly (bearing) for wear and play. This AD was prompted by reports of worn bearings. The actions of this AD are intended to prevent an unsafe condition on these products.