Federal Aviation Administration March 15, 2021 – Federal Register Recent Federal Regulation Documents

Special Conditions: Boeing Commercial Airplanes Model 777-9 Airplanes; Structure-Mounted Airbags
Document Number: 2021-05308
Type: Rule
Date: 2021-03-15
Agency: Federal Aviation Administration, Department of Transportation
These special conditions are issued for the Boeing Commercial Airplanes (Boeing) Model 777-9 airplane. This airplane will have a novel or unusual design feature when compared to the state of technology envisioned in the airworthiness standards for transport- category airplanes. This design feature is structure-mounted airbags designed to limit occupant forward excursion in the event of an emergency landing. 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.
Special Conditions: Airbus Model A321neo ACF Airplane; Dynamic Test Requirements for Single-Occupant Oblique (Side-Facing) Seats With 3-Point Restraints
Document Number: 2021-05307
Type: Rule
Date: 2021-03-15
Agency: Federal Aviation Administration, Department of Transportation
These special conditions are issued for the Airbus Model A321neo Cabin Flex (ACF) airplane. This airplane will have a novel or unusual design feature when compared to the state of technology envisioned in the airworthiness standards for transport-category airplanes. This design feature is single-occupant oblique seats with 3- point restraints. 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.
Special Conditions: Rockwell Collins, Bombardier Model BD-100-1A10 Airplane; Electronic-System Security Protection From Unauthorized External Access
Document Number: 2021-05294
Type: Rule
Date: 2021-03-15
Agency: Federal Aviation Administration, Department of Transportation
These special conditions are issued for the Bombardier Model BD-100-1A10 airplane. This airplane, as modified by Rockwell Collins, will have a novel or unusual design feature when compared to the state of technology envisioned in the airworthiness standards for transport category airplanes. This design feature is the installation of a system that allows connection to airplane electronic systems and networks, and access from aircraft external to the previously isolated internal airplane electronic assets. 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.
Special Conditions: Rockwell Collins, Bombardier Model BD-100-1A10 Airplane; Electronic-System Security Protection From Unauthorized Internal Access
Document Number: 2021-05293
Type: Rule
Date: 2021-03-15
Agency: Federal Aviation Administration, Department of Transportation
These special conditions are issued for the Bombardier Model BD-100-1A10 airplane. This airplane, as modified by Rockwell Collins, will have a novel or unusual design feature when compared to the state of technology envisioned in the airworthiness standards for transport- category airplanes. This design feature is the installation of a system that allows connection to airplane electronic systems and networks, and access from sources internal to the airplane to the previously isolated internal airplane electronic assets. 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.
Special Conditions: B/E Aerospace, Bombardier Model CL-600-2B16 (604 Variant) Airplane; Seats With Pretensioner Restraint Systems
Document Number: 2021-05290
Type: Rule
Date: 2021-03-15
Agency: Federal Aviation Administration, Department of Transportation
These special conditions are issued for the Bombardier Inc. (Bombardier) Model CL-600-2B16 (604 variant) airplane. This airplane, as modified by B/E Aerospace, will have a novel or unusual design feature when compared to the state of technology envisioned in the airworthiness standards for transport category airplanes. This design feature is seats with a 3-point shoulder harness incorporating a pretensioner restraint system. 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.
Petition for Exemption; Summary of Petition Received; AirNet II, LLC
Document Number: 2021-05288
Type: Notice
Date: 2021-03-15
Agency: Federal Aviation Administration, Department of Transportation
This notice contains a summary of a petition seeking relief from specified requirements of Federal Aviation Regulations. The purpose of this notice is to improve the public's awareness of, and participation in, the FAA's exemption process. 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.
Airworthiness Directives; The Boeing Company Airplanes
Document Number: 2021-05253
Type: Rule
Date: 2021-03-15
Agency: Federal Aviation Administration, Department of Transportation
The FAA is superseding Airworthiness Directive (AD) 2017-26- 10, which applied to certain The Boeing Company Model 757 airplanes. AD 2017-26-10 required deactivating the spoiler control module (SCM) relays and capping and stowing the associated wiring on certain airplanes. This AD requires repetitive operational tests of the spoiler inhibit function. For certain airplanes, this AD requires installing a new relay bracket assembly, making changes to the wire bundles for certain SCMs, installing new SCMs, measuring the clearance between a wire bundle and the top of the new relay bracket assembly, and applicable on-condition actions. For a certain other airplane, this AD requires changing certain wire bundles. This AD was prompted by reports of unwanted lateral oscillations during landing operations, and the development of wiring changes for certain SCMs, which will improve the lateral handling qualities of the airplane during approach and landing. The FAA is issuing this AD to address the unsafe condition on these products.
Airworthiness Directives; Airbus Helicopters
Document Number: 2021-05252
Type: Proposed Rule
Date: 2021-03-15
Agency: Federal Aviation Administration, Department of Transportation
The FAA proposes to adopt a new airworthiness directive (AD) for all Airbus Helicopters Model EC130B4 and EC130T2 helicopters. This proposed AD was prompted by a report of cracks and geometrical non- conformities of the tail rotor blades (TRBs); all cracks initiated in the drain hole area at the blade root section. This proposed AD would require cleaning affected parts, visual and dye penetrant inspections for cracks of affected parts, a dimensional inspection to verify conformity of affected parts, and corrective actions if necessary, as specified in a European Union Aviation Safety Agency (EASA) AD, which is proposed for incorporation by reference. The FAA is proposing this AD to address the unsafe condition on these products.
Proposed Establishment of Class E Airspace; Craig, AK
Document Number: 2021-05230
Type: Proposed Rule
Date: 2021-03-15
Agency: Federal Aviation Administration, Department of Transportation
This action proposes to establish Class E airspace extending upward from 700 feet above the surface of the earth at El Capitan Lodge, Craig, AK. This action would accommodate a new area navigation (RNAV) procedure and ensure the safety and management of instrument flight rule (IFR) operations within the National Airspace System.
Airworthiness Directives; Erickson Air-Crane Incorporated Model S-64E and S-64F Helicopters
Document Number: 2021-05219
Type: Proposed Rule
Date: 2021-03-15
Agency: Federal Aviation Administration, Department of Transportation
The FAA is withdrawing a notice of proposed rulemaking (NPRM) that proposed to adopt a new airworthiness directive (AD) that would have applied to Erickson Air-Crane Incorporated (now Erickson Incorporated) (Erickson) Model S-64E and S-64F helicopters. The NPRM was prompted by several reports of cracking in the strap and pocket areas of the tail rotor blade. The NPRM would have required inspecting certain tail rotor blade assemblies (blade assembly) for a crack and replacing any cracked blade assembly. Since issuance of the NPRM, the FAA has determined that the unsafe condition no longer exists. Accordingly, the NPRM is withdrawn.
Airworthiness Directives; BAE Systems (Operations) Limited Airplanes
Document Number: 2021-05204
Type: Proposed Rule
Date: 2021-03-15
Agency: Federal Aviation Administration, Department of Transportation
The FAA proposes to adopt a new airworthiness directive (AD) for all BAE Systems (Operations) Limited Model BAe 146 and Model Avro 146-RJ series airplanes. This proposed AD was prompted by a report indicating that during a routine battery capacity check on the emergency light power units, the printed circuit boards (PCBs) for certain power units were found to show signs of burning. This proposed AD would require replacing each Honeywell emergency light power unit having a certain part number with a serviceable emergency light power unit. The FAA is proposing this AD to address the unsafe condition on these products.
Airworthiness Directives; Airbus Helicopters
Document Number: 2021-05196
Type: Proposed Rule
Date: 2021-03-15
Agency: Federal Aviation Administration, Department of Transportation
The FAA proposes to adopt a new airworthiness directive (AD) for all Airbus Helicopters Model EC225LP helicopters. This proposed AD was prompted by reports of an oil leak from the main gearbox (MGB) during engine start up. This proposed AD would require modification and subsequent repetitive functional testing of the MGB emergency lubrication (EMLUB) system as specified in a European Union Aviation Safety Agency (EASA) AD, which is proposed for incorporation by reference (IBR). The FAA is proposing this AD to address the unsafe condition on these products.
Airworthiness Directives; Sikorsky Aircraft Corporation (Sikorsky) Helicopters
Document Number: 2021-05194
Type: Proposed Rule
Date: 2021-03-15
Agency: Federal Aviation Administration, Department of Transportation
The FAA is withdrawing a notice of proposed rulemaking (NPRM) that proposed to adopt a new airworthiness directive (AD) that would have applied to certain Sikorsky Model S-92A helicopters. The NPRM was prompted by a fatigue analysis conducted after a helicopter was found with a severed main gearbox (MGB) mounting foot pad (foot pad) that failed due to fatigue. The NPRM would have required revising the airworthiness limitations section of the existing Instructions for Continued Airworthiness (ICA) for your helicopter to reduce the life limit of the MGB housing and replacing any MGB housing that exceeds the life limit. Since issuance of the NPRM, the FAA has determined that the affected MGB housings are no longer in service. Accordingly, the NPRM is withdrawn.
Proposed Revocation of V-271 and Amendment of V-285 in the Vicinity of Manistee, MI
Document Number: 2021-05153
Type: Proposed Rule
Date: 2021-03-15
Agency: Federal Aviation Administration, Department of Transportation
This action proposes to revoke the Very High Frequency Omnidirectional Range (VOR) Federal airway V-271 and amend the VOR Federal airway V-285 in the vicinity of Manistee, MI. The airway amendments are necessary due to the planned decommissioning of the VOR portion of the Manistee, MI, VOR/Distance Measuring Equipment (VOR/DME) that these airways utilize for navigation guidance. The Manistee VOR is being decommissioned as part of the FAA's VOR Minimum Operational Network (MON) program.
Airworthiness Directives; Carson Helicopters, Inc.; Croman Corporation; Sikorsky Aircraft Corporation; and Siller Helicopters
Document Number: 2021-05150
Type: Proposed Rule
Date: 2021-03-15
Agency: Federal Aviation Administration, Department of Transportation
The FAA is revising an earlier proposal for all Sikorsky Aircraft Corporation Model S-61 A, D, E, and V helicopters; Croman Corporation Model SH-3H helicopters, Carson Helicopters, Inc. Model S- 61L helicopters; and Siller Helicopters Model CH-3E and SH-3A helicopters. This action revises the notice of proposed rulemaking (NPRM) by adding camshaft and gear housing part numbers that need to be marked and clarifying the applicability and certain compliance times. The FAA is proposing this airworthiness directive (AD) to address the unsafe condition on these products. Since these actions would impose an additional burden over that in the NPRM, the FAA is reopening the comment period to allow the public the chance to comment on these changes.
Airworthiness Directives; Airbus Helicopters
Document Number: 2021-05144
Type: Rule
Date: 2021-03-15
Agency: Federal Aviation Administration, Department of Transportation
The FAA is adopting a new airworthiness directive (AD) for Airbus Helicopters Model AS332C, AS332C1, AS332L, AS332L1, AS332L2, EC 155B, EC155B1, EC225LP, and SA330J helicopters. This AD requires inspecting the snap fasteners on the windows. This AD was prompted by incidents of difficulty unbuttoning the extraction tape on the windows. The actions of this AD are intended to address an unsafe condition on these products.