Federal Aviation Administration March 8, 2021 – Federal Register Recent Federal Regulation Documents

Airworthiness Directives; Airbus Helicopters
Document Number: 2021-04803
Type: Rule
Date: 2021-03-08
Agency: Federal Aviation Administration, Department of Transportation
The FAA is adopting a new airworthiness directive (AD) for certain Airbus Helicopters Model AS350B, AS350BA, AS350B1, AS350B2, AS350D, AS355E, AS355F, AS355F1, AS355F2, and AS355N helicopters. This AD was prompted by two reports of debonding of the tail rotor (T/R) blade leading edge protection shields. This AD requires repetitively inspecting certain T/R blades and depending on the inspection results, replacing the T/R blade, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference (IBR). This AD also prohibits installing certain T/R blades. The FAA is issuing this AD to address the unsafe condition on these products.
Airworthiness Directives; Airbus Helicopters
Document Number: 2021-04800
Type: Rule
Date: 2021-03-08
Agency: Federal Aviation Administration, Department of Transportation
The FAA is adopting a new airworthiness directive (AD) for all Airbus Helicopters Model AS355E, AS355F, AS355F1, AS355F2, AS355N and AS355NP helicopters; and certain Model AS350B3 helicopters. This AD was prompted by a report that, during an unscheduled post-flight inspection of the tail cone area, a crack was found in the spar of the upper part of the vertical fin and fractures were found in the two front attachment screws. This AD requires repetitive visual inspections of the right-hand side of the vertical fin spar for discrepancies (cracking), and corrective action if necessary, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. The FAA is issuing this AD to address the unsafe condition on these products.
Airworthiness Directives; Airbus SAS Airplanes
Document Number: 2021-04442
Type: Proposed Rule
Date: 2021-03-08
Agency: Federal Aviation Administration, Department of Transportation
The FAA proposes to adopt a new airworthiness directive (AD) for all Airbus SAS Model A330-200, -300, -800, and -900 series airplanes; and Model A340-200, -300, -500, and -600 series airplanes. This proposed AD was prompted by reports that certain oxygen supply solenoid valves are a potential source of increased flow resistance within the flightcrew oxygen system. This proposed AD would require a special detailed inspection (flow test) of certain solenoid valves, and replacement 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.
Airworthiness Directives; Airbus SAS Airplanes
Document Number: 2021-04441
Type: Proposed Rule
Date: 2021-03-08
Agency: Federal Aviation Administration, Department of Transportation
The FAA proposes to adopt a new airworthiness directive (AD) for certain Airbus SAS Model A321-211, -231, and -232 airplanes. This proposed AD was prompted by a report of false drill starts found around the latch hook mounting holes of certain door frames of the fuselage due to erroneous manufacturing processes. This proposed AD would require a one-time inspection of the area around the latch hook mounting holes of the forward and aft door frames to detect damage from false drill starts, and repair 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.
Airworthiness Directives; Pilatus Aircraft Ltd. Airplanes
Document Number: 2021-04395
Type: Proposed Rule
Date: 2021-03-08
Agency: Federal Aviation Administration, Department of Transportation
The FAA is revising a notice of proposed rulemaking (NPRM) to supersede Airworthiness Directive (AD) 2014-25-04, which applies to all Pilatus Aircraft Ltd. (Pilatus) Model PC-6, PC-6-H1, PC-6-H2, PC-6/350, PC-6/350-H1, PC-6/350-H2, PC-6/A, PC-6/A-H1, PC-6/A-H2, PC-6/B-H2, PC- 6/B1-H2, PC-6/B2-H2, PC-6/B2-H4, PC-6/C-H2, and PC-6/C1-H2 airplanes. This action revises the NPRM by adding an eddy current inspection of each fuselage wing fitting if an earlier version of the service information was accomplished. The FAA is proposing this AD to address the unsafe condition on these products. Since these actions would impose an additional burden over those in the NPRM, the FAA is requesting comments on this SNPRM.
Airworthiness Directives; International Aero Engines AG Turbofan Engines
Document Number: 2021-04236
Type: Proposed Rule
Date: 2021-03-08
Agency: Federal Aviation Administration, Department of Transportation
The FAA proposes to adopt a new airworthiness directive (AD) for certain International Aero Engines AG (IAE) V2522-A5, V2524-A5, V2525-D5, V2527-A5, V2527E-A5, V2527M-A5, V2528-D5, V2530-A5, V2531-E5, and V2533-A5 model turbofan engines. This proposed AD was prompted by an analysis performed by the manufacturer after an event involving an uncontained failure of a high-pressure turbine (HPT) 1st-stage disk that resulted in high-energy debris penetrating the engine cowling. This proposed AD would require the performance of an ultrasonic inspection (USI) of the HPT 1st-stage disk and HPT 2nd-stage disk and, depending on the results of the inspections, replacement of the HPT 1st-stage disk or HPT 2nd-stage disk. The FAA is proposing this AD to address the unsafe condition on these products.
Airworthiness Directives; Eurocopter France Helicopters
Document Number: 2021-04235
Type: Proposed Rule
Date: 2021-03-08
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 Eurocopter France (now Airbus Helicopters) Model AS350B, BA, B1, B2, B3, C, D, and D1; EC-130B4; and AS355E, F, F1, F2, and N helicopters. The NPRM would have required modifying the collective hold-down strap (strap) and thereafter inspecting it at specified intervals to ensure the rubber grommet is resting against the console or replacing the strap with a strap that has a torsional spring at the lower end of the strap. Since issuance of the NPRM, the FAA issued AD 2014-02-05, which addresses the unsafe condition identified in the NPRM. Accordingly, the NPRM is withdrawn.
Airworthiness Directives; Leonardo S.p.a. (Type Certificate Previously Held by Agusta S.p.A.) Helicopters
Document Number: 2021-04232
Type: Proposed Rule
Date: 2021-03-08
Agency: Federal Aviation Administration, Department of Transportation
The FAA proposes to supersede airworthiness directive (AD) 2015-25-04 for Agusta S.p.A (now Leonardo S.p.a.) Model A109A and A109A II helicopters. AD 2015-25-04 requires inspecting the slider assembly pitch control (slider) for play and replacing the slider if the play exceeds certain limits. Since the FAA issued AD 2015-25-04, further investigation determined the play was caused by a manufacturing issue. This proposed AD would retain certain requirements of AD 2015-25-04, require replacing certain part-numbered sliders as a terminating action for the inspections, and prohibit installing the affected part on any helicopter. The actions of this proposed AD are intended to address an unsafe condition on these products.
Amendment of Class D and Class E Airspace; Farmington, NM
Document Number: 2021-04212
Type: Rule
Date: 2021-03-08
Agency: Federal Aviation Administration, Department of Transportation
This action modifies the Class D airspace at Four Corners Regional Airport, Farmington, NM. This action also modifies the Class E airspace, designated as a surface area, to match the modified Class D dimensions. Additionally, this action modifies the Class E airspace extending upward from 700 feet above the surface. Further, this action removes the Class E airspace, extending upward from 1,200 feet above the surface. This action also removes the Four Corners Regional ILS Localizer and the Farmington VORTAC from the legal descriptions' text headers and airspace descriptions. Lastly, this action implements several administrative corrections to the Class D, Class E2, and Class E5 airspaces' legal descriptions.
Establishment of Class E airspace; Leoti, KS
Document Number: 2021-04211
Type: Rule
Date: 2021-03-08
Agency: Federal Aviation Administration, Department of Transportation
This action establishes Class E airspace extending upward from 700 feet above the surface at Mark Hoard Memorial Airport, Leoti, KS. The airspace contains the new instrument approach and departure procedures that were developed for the airport.
Airworthiness Directives; Airbus Helicopters Deutschland GmbH Helicopters
Document Number: 2021-04185
Type: Proposed Rule
Date: 2021-03-08
Agency: Federal Aviation Administration, Department of Transportation
The FAA proposes to adopt a new airworthiness directive (AD) for certain Airbus Helicopters Deutschland GmbH Model MBB-BK117 D-2 helicopters. This proposed AD was prompted by reports that collective lever switch units having certain part numbers did not have retaining rings installed in the cable cut switch guard. This proposed AD would require inspecting certain collective lever switch units for discrepancies (missing retaining rings, incorrectly installed retaining rings, and a missing axis in the cable cut switch guard), doing all applicable corrective actions, and marking affected parts, 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.
Amendment and Cancellation of VOR Federal Airways V-49 and V-541 in the Vicinity of Decatur, AL
Document Number: 2021-04156
Type: Rule
Date: 2021-03-08
Agency: Federal Aviation Administration, Department of Transportation
This action modifies VHF Omni-directional Range Federal airway V-541 and removes V-49, in the vicinity of Decatur, AL. This action is necessary due to the planned decommissioning of the Decatur, AL, VOR/ Distance Measuring Equipment (DME) navigation aid, which provides navigation guidance for segments of the routes. This will provide for the safe and efficient use of navigable airspace within the National Airspace System (NAS) while reducing NAVAID dependencies throughout the NAS as part of the FAA VOR Minimum Operation Network program.
Deletion of VOR Federal Airways V-346 and V-400 in the Vicinity of Beauce, Canada.
Document Number: 2021-04155
Type: Rule
Date: 2021-03-08
Agency: Federal Aviation Administration, Department of Transportation
This action removes VHF Omni-directional Range Federal airway V-346 and V-400, in the vicinity of Beauce, Canada. This action is necessary due to Canada's civil air navigation services provider, NAV Canada, planned decommissioning of the Beauce, Canada, VHF Omni-directional Range (VOR)/Distance Measuring Equipment (DME) navigation aid, which provides navigation guidance for segments of the routes. NAV Canada has deleted the portions of both airways that resided in their airspace.
Proposed Amendment and Establishment of Class E Airspace; Baker City, OR
Document Number: 2021-04035
Type: Proposed Rule
Date: 2021-03-08
Agency: Federal Aviation Administration, Department of Transportation
This action proposes to modify the Class E airspace, designated as a surface area for Baker City Municipal Airport. This action also proposes to establish Class E airspace, designated as an extension to a Class D or Class E surface area. Additionally, this action proposes to modify the Class E airspace extending upward from 700 feet above the surface. This action also proposes to remove the Baker City VORTAC from the Class E2 and the VOR/DME from the Class E5 text headers and airspace descriptions. Lastly, this action also proposes several administrative corrections to the airspaces' legal descriptions. This action would ensure the safety and management of instrument flight rules (IFR) operations at the airport.
Proposed Amendment of Class D and Class E Airspace; Bakersfield, CA
Document Number: 2021-04016
Type: Proposed Rule
Date: 2021-03-08
Agency: Federal Aviation Administration, Department of Transportation
This action proposes to modify the Class D airspace, at Meadows Field Airport. This action also proposes to modify the Class E airspace designated as a surface area and the Class E airspace extending upward from 700 feet above the surface. Additionally, this action proposes several administrative corrections to the Class D, Class E2, and Class E5 text headers. Lastly, this action proposes to update the term ``Airport/Facility Directory'' in the last sentence of the Class D's airspace description to ``Chart Supplement.'' This action would ensure the safety and management of instrument flight rules (IFR) operations at the airport.
Proposed Establishment of Class E Airspace; Bakersfield, CA
Document Number: 2021-04015
Type: Proposed Rule
Date: 2021-03-08
Agency: Federal Aviation Administration, Department of Transportation
This action proposes to establish Class E airspace extending upward from 700 feet above the surface at Bakersfield Municipal Airport, Bakersfield, CA. This action would ensure the safety and management of instrument flight rules (IFR) operations at the airport.
Proposed Amendment of Class E Airspace; Delano, CA
Document Number: 2021-04013
Type: Proposed Rule
Date: 2021-03-08
Agency: Federal Aviation Administration, Department of Transportation
This action proposes to modify the Class E airspace extending upward from 700 feet above the surface at Delano Municipal Airport, Delano, CA. The airspace modification is necessary to properly contain instrument flight rules (IFR) aircraft operating to/from the airport. This action also proposes to update the airport's geographical coordinates to match the FAA database. This action would ensure the safety and management of IFR operations at the airport.
Proposed Establishment of Class E Airspace; Shafter, CA
Document Number: 2021-04010
Type: Proposed Rule
Date: 2021-03-08
Agency: Federal Aviation Administration, Department of Transportation
This action proposes to establish Class E airspace extending upward from 700 feet above the surface at Shafter-Minter Field Airport, Shafter, CA. This action would ensure the safety and management of instrument flight rules (IFR) operations at the airport.
Airworthiness Directives; Airbus Helicopters Deutschland GmbH Helicopters
Document Number: 2021-03991
Type: Proposed Rule
Date: 2021-03-08
Agency: Federal Aviation Administration, Department of Transportation
The FAA proposes to supersede Airworthiness Directive (AD) 2016-11-21 for Airbus Helicopters Deutschland GmbH (Airbus Helicopters) Model EC135P1, EC135P2, EC135P2+, EC135T1, EC135T2, and EC135T2+ helicopters. AD 2016-11-21 requires revising the life limit of certain parts and removing each part that has reached its life limit. Since the FAA issued AD 2016-11-21, new models were certified. This proposed AD would expand the applicability to include Model EC135P3 and EC135T3 helicopters. This proposed AD would also revise the life limits for certain parts and propose to remove each part that has reached or exceeded its life limit. The actions of this proposed AD are intended to address an unsafe condition on these products.
Airworthiness Directives; Robinson Helicopter Company Helicopters
Document Number: 2021-03656
Type: Rule
Date: 2021-03-08
Agency: Federal Aviation Administration, Department of Transportation
The FAA is adopting a new airworthiness directive (AD) for Robinson Helicopter Company (Robinson) Model R66 helicopters. This AD was prompted by reports of tail rotor (T/R) drive shaft forward hanger bearing failures. This AD requires installing a certain part numbered kit and removing parts from service or replacing a certain part- numbered T/R drive shaft assembly. This AD also prohibits the installation of certain parts. The FAA is issuing this AD to address the unsafe condition on these products.
Airworthiness Directives; Textron Aviation, Inc. Airplanes
Document Number: 2021-03478
Type: Rule
Date: 2021-03-08
Agency: Federal Aviation Administration, Department of Transportation
The FAA is adopting a new airworthiness directive (AD) for certain Textron Aviation Inc. (Textron) (type certificate previously held by Cessna Aircraft Company) Models 208 and 208B airplanes. This AD was prompted by reports of loose elevator torque tube attach fasteners. This AD requires repetitively inspecting the inboard and outboard elevator torque tube attachments for loose or incorrectly installed fasteners, replacing all fasteners if loose or incorrectly installed fasteners are found, and reporting the inspection results to the FAA. This AD also includes optional actions to terminate the repetitive inspections. The FAA is issuing this AD to address the unsafe condition on these products.