Federal Aviation Administration April 28, 2014 – Federal Register Recent Federal Regulation Documents
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Petition for Exemption; Summary of Petition Received
This notice contains a summary of a petition seeking relief from specified requirements of Title 14, Code of Federal Regulations (14 CFR). The purpose of this notice is to improve the public's awareness of, and participation in, this aspect of the FAA's regulatory activities. Neither publication of this notice nor the inclusion or omission of information in the summary is intended to affect the legal status of the petition or its final disposition.
Proposal To Consider the Impact of One Engine Inoperative Procedures in Obstruction Evaluation Aeronautical Studies
This action proposes to establish a new policy that would consider the impact of one engine out procedures in the aeronautical study process conducted under existing 14 CFR part 77 criteria when the airport operations potentially affected by a determination of no hazard are able to use a dedicated one engine out flight path. Additionally, this proposed policy statement notes that the FAA has the authority to consider the cumulative effects of construction in concentrated areas when evaluating the potential for a hazard to navigation.
Airworthiness Directives; Sikorsky Aircraft Corporation Helicopters
We are superseding Airworthiness Directive (AD) 2005-22-01 for Sikorsky Aircraft Corporation (Sikorsky) Model S-76A, B, and C helicopters. AD 5002-22-01 required inspecting the main rotor lower bifilar arm assembly (bifilar arm assembly) for a crack, and if there is a crack, replacing the bifilar arm assembly. AD 2005-22-01 also required a one-time test for the correct torque on the lug nuts, and if necessary, conducting torque stabilization tests. This new AD retains the requirements of AD 2005-22-01 and also requires replacing the main rotor hub (MRH) pilot with a different part-numbered MRH pilot, which is terminating action for the requirements of the AD. This AD was prompted by the development of a terminating procedure for the inspections required by AD 2005-22-01. We are issuing this AD to prevent failure of a bifilar lug, damage to the main rotor system, and subsequent loss of control of the helicopter.
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