Federal Aviation Administration May 7, 2021 – Federal Register Recent Federal Regulation Documents

Airworthiness Directives; The Boeing Company Airplanes
Document Number: 2021-09299
Type: Proposed Rule
Date: 2021-05-07
Agency: Federal Aviation Administration, Department of Transportation
The FAA proposes to adopt a new airworthiness directive (AD) for certain The Boeing Company Model 787-8 and 787-9 airplanes. This proposed AD was prompted by reports that shimming requirements were not met during the assembly of certain structural joints, which can result in reduced fatigue thresholds of the affected structural joints. This proposed AD would require repetitive inspections for cracking of certain areas of the front spar pickle fork and front spar outer chord and repair of any cracking found. The FAA is proposing this AD to address the unsafe condition on these products.
Airworthiness Directives; General Electric Company Turbofan Engines
Document Number: 2021-09291
Type: Proposed Rule
Date: 2021-05-07
Agency: Federal Aviation Administration, Department of Transportation
The FAA proposes to adopt a new airworthiness directive (AD) for all General Electric Company GE90-110B1 and GE90-115B model turbofan engines. This proposed AD was prompted by an in-service occurrence of loss of engine thrust control resulting in uncommanded high thrust. This proposed AD would require initial and repetitive replacement of the full authority digital engine control (FADEC) integrated circuit (MN4) microprocessor. The FAA is proposing this AD to address the unsafe condition on these products.
Airworthiness Directives; Bell Textron Canada Limited (Type Certificate Previously Held by Bell Helicopter Textron Canada Limited) Helicopters
Document Number: 2021-09278
Type: Rule
Date: 2021-05-07
Agency: Federal Aviation Administration, Department of Transportation
The FAA is adopting a new airworthiness directive (AD) for certain Bell Textron Canada Limited (type certificate previously held by Bell Helicopter Textron Canada Limited) Model 206L series helicopters. This AD was prompted by a manufacturing flaw that could cause low fuel level detector switch units (switch units) to hang in the high position and fail to indicate a low fuel condition. This AD requires removing certain switch units from service and prohibits installing those switch units. This AD also requires accomplishing an operational test of certain other switch units, and depending on the results, removing the switch unit from service. This AD also prohibits installing those certain other switch units unless they pass an operational test. The FAA is issuing this AD to address the unsafe condition on these products.
Airworthiness Directives; Gulfstream Aerospace Corporation Airplanes
Document Number: 2021-09243
Type: Proposed Rule
Date: 2021-05-07
Agency: Federal Aviation Administration, Department of Transportation
The FAA proposes to adopt a new airworthiness directive (AD) for certain Gulfstream Aerospace Corporation (Gulfstream) Model GVII- G500 airplanes. This proposed AD results from flap yoke fittings with design features that cause decreased fatigue life. This proposed AD would require replacing the flap inboard and outboard yoke fitting assemblies and establishing a 20,000 flight cycle life limit for the fittings. The FAA is proposing this AD to address the unsafe condition on these products.
Proposed Amendment and Establishment of Class E Airspace; Bar Harbor, ME
Document Number: 2021-09226
Type: Proposed Rule
Date: 2021-05-07
Agency: Federal Aviation Administration, Department of Transportation
This action proposes to amend Class E surface area and Class E airspace extending upward from 700 feet above the surface at Hancock County-Bar Harbor Airport, Bar Harbor, ME. This action would also update the geographic coordinates of Hancock County-Bar Harbor Airport, Bar Harbor, ME. In addition, this action would also establish Class E airspace extending upward from 700 feet above the surface for Bar Harbor Heliport, Bar Harbor, ME. Controlled airspace is necessary for the safety and management of instrument flight rules (IFR) operations in the area.
Airworthiness Directives; Airbus SAS Airplanes
Document Number: 2021-08929
Type: Proposed Rule
Date: 2021-05-07
Agency: Federal Aviation Administration, Department of Transportation
The FAA proposes to adopt a new airworthiness directive (AD) for all Airbus SAS Model A350-941 and -1041 airplanes. This proposed AD was prompted by a report that during an inspection of the flight deck escape hatches it was found that they were difficult to open from the inside, and several hatches were found impossible to open from the outside. Subsequent investigation revealed corrosion on the flight deck escape hatch mechanism due to condensation penetrating inside the mechanism. This proposed AD would require replacing all affected flight deck escape hatches with serviceable hatches, 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.
Airworthiness Directives; Bell Textron Canada Limited (Type Certificate Previously Held by Bell Helicopter Textron Canada Limited)
Document Number: 2021-08922
Type: Proposed Rule
Date: 2021-05-07
Agency: Federal Aviation Administration, Department of Transportation
The FAA is revising a notice of proposed rulemaking (NPRM) that applied to certain Bell Helicopter Textron Canada Limited (now Bell Textron Canada Limited) Model 206A, 206B, 206L, 206L-1, 206L-3, and 206L-4 helicopters. This action revises the NPRM by revising the format, rearranging certain paragraphs, converting a certain table to paragraph format, and removing certain language. The FAA is proposing this airworthiness directive (AD) to address the unsafe condition on these products. Since the NPRM was issued, a significant amount of time has elapsed requiring the FAA to reopen the comment period to allow the public a chance to comment on the proposed actions.
Airworthiness Directives; Airbus Helicopters (Type Certificate Previously Held by Eurocopter France)
Document Number: 2021-08897
Type: Proposed Rule
Date: 2021-05-07
Agency: Federal Aviation Administration, Department of Transportation
The FAA is revising a SNPRM for all Eurocopter France (now Airbus Helicopters) Model SA-365N, SA-365N1, AS-365N2, AS 365 N3, and SA-366G1 helicopters. The SNPRM retained the proposed requirements in the notice of proposed rulemaking (NPRM) and added recurring inspections and references to an engineering report that lists approved U.S. alternative fasteners and materials that may be used in any required repairs. The FAA is reopening the comment period because a significant amount of time has elapsed since the SNPRM was published. This proposed AD would require measuring the 9-degree frame flange (frame) for the correct edge distance of the four attachment holes for the stretcher support and inspecting for cracks, and repairing the frame, if necessary, as specified in two Direction G[eacute]n[eacute]rale de l'Aviation Civile (DGAC) ADs, which are proposed for incorporation by reference (IBR). This action also revises the SNPRM by updating the type certificate holder's name and estimated cost information. 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 those in the SNPRM, the agency is requesting comments on this SNPRM.