14 CFR 27.1503 - Airspeed limitations: general.

On December 13, 2016, the Federal Aviation Administration (FAA) published a final rule to permit operators to use an enhanced flight vision system in lieu of natural vision to continue descending from 100 feet above the touchdown zone elevation to the runway and to land on certain straight-in instrument approach procedures under instrument flight rules. The FAA is delaying the effective date of this final rule.

Prior to this final rule, persons could only use an Enhanced Flight Vision System (EFVS) in lieu of natural vision to descend below the decision altitude, decision height, or minimum descent altitude (DA/DH or MDA) down to 100 feet above the touchdown zone elevation (TDZE) using certain straight-in landing instrument approach procedures (IAPs). This final rule permits operators to use an EFVS in lieu of natural vision to continue descending from 100 feet above the TDZE to the runway and to land on certain straight-in IAPs under instrument flight rules (IFR). This final rule also revises and relocates the regulations that permit operators to use an EFVS in lieu of natural vision to descend to 100 feet above the TDZE using certain straight-in IAPs. Additionally, this final rule addresses provisions that permit operators who conduct EFVS operations under parts 121, 125, or 135 to use EFVS-equipped aircraft to dispatch, release, or takeoff under IFR, and revises the regulations for those operators to initiate and continue an approach, when the destination airport weather is below authorized visibility minimums for the runway of intended landing. This final rule establishes pilot training and recent flight experience requirements for operators who use EFVS in lieu of natural vision to descend below the DA/DH or MDA. EFVS-equipped aircraft conducting operations to touchdown and rollout are required to meet additional airworthiness requirements. This final rule also revises pilot compartment view certification requirements for vision systems using a transparent display surface located in the pilot's outside field of view. The final rule takes advantage of advanced vision capabilities, thereby achieving the Next Generation Air Transportation System (NextGen) goals of increasing access, efficiency, and throughput at many airports when low visibility is the limiting factor. Additionally, it enables EFVS operations in reduced visibilities on a greater number of approach procedure types while maintaining an equivalent level of safety.

This action reopens the comment period for an NPRM that was published on October 17, 2016. In that document, the FAA proposed to revise its rules for pilot compartment view to allow ground tests to demonstrate compliance for night operations. The FAA is extending the comment period closing date to allow time to adequately analyze the draft advisory circulars (ACs) associated with the proposed rule and prepare comments.

These special conditions are issued for the modification of the Airbus Helicopters Model EC120B helicopter. This model helicopter will have a novel or unusual design feature after installation of the S-TEC Corporation (S-TEC) HeliSAS helicopter autopilot/stabilization augmentation system (AP/SAS) that has potential failure conditions with more severe adverse consequences than those envisioned by the existing applicable airworthiness regulations. These special conditions contain the added safety standards the Administrator considers necessary to ensure the failures and their effects are sufficiently analyzed and contained.

The FAA is proposing to revise its rules for pilot compartment view to allow ground tests to demonstrate compliance for night operations. The current regulations require night flight testing to demonstrate compliance, which is not necessary in every case. The proposed rule would relieve the burden of performing a night flight test under certain conditions.

The FAA is announcing a public meeting to gather additional technical input on the subject of installing an engine inlet barrier filter (IBF) on rotorcraft. Input gathered will aid in developing FAA guidance for evaluating engine IBFs installed on rotorcraft. Prior to the public meeting, the FAA previously sought public comments regarding the guidance online.

This action reopens the comment period for the regulatory evaluation associated with the FAA's June 11, 2013 Notice of Proposed Rulemaking (NPRM), Revisions to Operational Requirements for the Use of Enhanced Flight Vision Systems (EFVS) and to Pilot Compartment View Requirements for Vision Systems. The regulatory evaluation associated with the NPRM was not posted to the docket prior to the close of the comment period. Therefore, the FAA is reopening the comment period to allow the public the opportunity to adequately analyze the full regulatory evaluation for the NPRM. The FAA will accept comments on the regulatory evaluation only; and not on the regulatory changes proposed in the NPRM.

These special conditions are issued for the modification of the Robinson Helicopter Company Model R44 and R44 II helicopters. These model helicopters will have a novel or unusual design feature after installation of the HeliSAS helicopter autopilot/stabilization augmentation system (AP/SAS) that has potential failure conditions with more severe adverse consequences than those envisioned by the existing applicable airworthiness regulations. These special conditions contain the added safety standards the Administrator considers necessary to ensure the failures and their effects are sufficiently analyzed and contained.

This notice disposes of public comments received by the Federal Aviation Administration (FAA) in response to a Federal Register notice published on February 22, 2013, requesting comments on a potential restructuring of the rotorcraft airworthiness standards of Title 14 of the Code of Federal Regulations (14 CFR) parts 27 (normal category rotorcraft) and 29 (transport category rotorcraft). Specifically, the agency sought comments on the necessity of updates to parts 27 and 29, including whether to change the existing weight- and seat-based applicability standards for normal and transport rotorcraft. Based on the comments received, the FAA is terminating this docket. Commenters indicated a substantial interest in revising or restructuring the certification standards for parts 27 and 29, and the FAA's Rotorcraft Directorate will begin establishing the appropriate forums to involve interested parties.

This action extends the comment period for an NPRM that was published on June 11, 2013. In that document, the FAA proposed to permit operators to use an EFVS in lieu of natural vision to continue descending from 100 feet height above runway touchdown zone elevation and land on certain straight-in instrument approach procedures under instrument flight rules. This rule would also permit certain operators using EFVS-equipped aircraft to dispatch, release, or takeoff under instrument flight rules (IFR), and to initiate and continue an approach, when the destination airport weather is below authorized visibility minimums for the runway of intended landing. Pilot training, recent flight experience, and proficiency would be required for operators who use EFVS in lieu of natural vision to descend below decision altitude, decision height, or minimum descent altitude. EFVS-equipped aircraft conducting operations to touchdown and rollout would be required to meet additional airworthiness requirements. This rule would also revise pilot compartment view certification requirements for all vision systems. Given the technical complexity of the NPRM, Dassault-Aviation has requested that the FAA extend the comment period to October 15, 2013 to allow time to adequately analyze the NPRM and provide meaningful comments.

The FAA is proposing to permit operators to use an Enhanced Flight Vision System (EFVS) in lieu of natural vision to continue descending from 100 feet above the touchdown zone elevation to the runway and land on certain straight-in instrument approach procedures under instrument flight rules (IFR). This proposal would also permit certain operators using EFVS-equipped aircraft to dispatch, release, or takeoff under IFR, and to initiate and continue an approach, when the destination airport weather is below authorized visibility minimums for the runway of intended landing. Under this proposal, pilot training, recent flight experience, and proficiency would be required for operators who use EFVS in lieu of natural vision to descend below decision altitude, decision height, or minimum descent altitude. EFVS-equipped aircraft conducting operations to touchdown and rollout would be required to meet additional airworthiness requirements. This proposal would also revise pilot compartment view certification requirements for vision systems using a transparent display surface located in the pilot's outside view. The proposal would take advantage of advanced vision capabilities thereby achieving the NextGen goals of increasing access, efficiency, and throughput at many airports when low visibility is the limiting factor. Additionally, it would enable EFVS operations in reduced visibilities on a greater number of approach procedure types while maintaining an equivalent level of safety.

The Federal Aviation Administration (FAA) is requesting comments and information on the public's interest in restructuring the rotorcraft airworthiness standards of normal category rotorcraft and transport category rotorcraft. Specifically, the agency is seeking comments on whether to change the existing applicability standards for maximum weight and number of passenger seats for either or both types of rotorcraft, or whether to consider other approaches for determining applicability. The FAA is soliciting public input because of some rotorcraft community interest in increasing the 7,000 pound maximum weight limit for the modern normal category rotorcraft and because there may be recommendations for new approaches to make the rotorcraft airworthiness standards more efficient and adaptable to future technology. This action is part of an effort to develop recommendations for possible FAA rulemaking action.

This document notifies the public of the Office of Management and Budget's (OMB's) approval of the information collection requirement contained in the FAA's final rule, “Damage Tolerance and Fatigue Evaluation of Composite Rotorcraft Structures,” which was published on December 1, 2011.

These special conditions are issued for the Eurocopter France Model EC130T2 helicopter. This model helicopter will have the novel or unusual design feature of a 30-minute power rating, generally intended to be used for hovering at increased power for search and rescue missions. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. These special conditions contain the additional safety standards that the Administrator considers necessary to establish a level of safety equivalent to that established by the existing airworthiness standards.