Federal Aviation Administration March 11, 2021 – Federal Register Recent Federal Regulation Documents

Airworthiness Directives; Leonardo S.p.a. Helicopters
Document Number: 2021-05199
Type: Rule
Date: 2021-03-11
Agency: Federal Aviation Administration, Department of Transportation
The FAA is adopting a new airworthiness directive (AD) for certain Leonardo S.p.a. (Leonardo) Model AB139 and AW139 helicopters. This AD requires removing certain forward facing center seats (seats). This AD was prompted by a design deficiency that affects seats on certain main cabin floor installations. The actions of this AD are intended to address an unsafe condition on these products.
Airworthiness Directives; Bell Textron Canada Limited Helicopters
Document Number: 2021-05093
Type: Proposed Rule
Date: 2021-03-11
Agency: Federal Aviation Administration, Department of Transportation
The FAA proposes to supersede Airworthiness Directive (AD) 2013-20-13 for certain Bell Helicopter Textron Canada Limited (now Bell Textron Canada Limited) (Bell) Model 206B and 206L helicopters. AD 2013-20-13 requires installing a placard beneath the engine power dual tachometer and revising the Operating Limitations section of the existing Rotorcraft Flight Manual (RFM) for your helicopter. Since the FAA issued AD 2013-20-13, the engine manufacturer expanded the RPM (N2) steady-state operation avoidance range limits. This proposed AD would retain certain requirements of AD 2013-20-13, require revising certain sections of the existing RFM for your helicopter, and require either replacing or installing a placard. The actions of this proposed AD are intended to address an unsafe condition on these products.
Airworthiness Directives; Airbus Helicopters
Document Number: 2021-05091
Type: Rule
Date: 2021-03-11
Agency: Federal Aviation Administration, Department of Transportation
The FAA is superseding Airworthiness Directive (AD) 2018-19- 01, which applied to all Airbus Helicopters Model AS-365N2, AS 365 N3, EC 155B, EC155B1, SA-365N1, and SA-366G1 helicopters. AD 2018-19-01 required repetitive inspections of the aft fuselage outer skin. This AD continues to require repetitive inspections and adds Model SA-365N helicopters, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. This AD was prompted by aft fuselage (baggage compartment area) outer skin disbonding and a determination that Model SA-365N helicopters are also affected by the unsafe condition identified in AD 2018-19-01. The FAA is issuing this AD to address the unsafe condition on these products.
Airworthiness Directives; Airbus Helicopters Deutschland GmbH Helicopters
Document Number: 2021-05090
Type: Rule
Date: 2021-03-11
Agency: Federal Aviation Administration, Department of Transportation
The FAA is adopting a new airworthiness directive (AD) for Airbus Helicopters Deutschland GmbH Model MBB-BK117 A-1, MBB-BK117 A-3, MBB-BK117 A-4, MBB-BK117 B-1, MBB-BK117 B-2, MBB-BK117 C-1, and MBB- BK117 C-2 helicopters. This AD requires inspecting the tail gearbox (TGB) bellcrank attachment arm (arm) for a crack. This AD was prompted by a report of a cracked TGB arm. The actions of this AD are intended to address an unsafe condition on these products.
Airworthiness Directives; Airbus Helicopters
Document Number: 2021-05089
Type: Rule
Date: 2021-03-11
Agency: Federal Aviation Administration, Department of Transportation
The FAA is adopting a new airworthiness directive (AD) for all Airbus Helicopters Model EC 155B and EC155B1 helicopters. This AD was prompted by a report that non-destructive tests of the main gearbox (MGB) housing may have been evaluated incorrectly during production. This AD requires replacing affected MGBs with serviceable MGBs, 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 Helicopters Deutschland GmbH
Document Number: 2021-05086
Type: Proposed Rule
Date: 2021-03-11
Agency: Federal Aviation Administration, Department of Transportation
The FAA proposes to adopt a new airworthiness directive (AD) for all Airbus Helicopters Deutschland GmbH Model MBB-BK 117 C-2 and Model MBB-BK 117 D-2 helicopters. This proposed AD was prompted by a determination that a life limit for the adapter forward (FWD) of the outboard load system, repetitive inspections of other components of that system, and for certain helicopters, a modification of the outboard load system, are necessary to address the unsafe condition. This proposed AD would require a modification of the outboard load system for certain helicopters, repetitive inspections of the outboard load system and its components for any defect (including cracking, damage, corrosion, and incorrect installation) and applicable corrective actions, and implementation of a new life limit for the FWD adapter, as specified in a European 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.
Safety Oversight and Certification Advisory Committee; Meeting
Document Number: 2021-05060
Type: Notice
Date: 2021-03-11
Agency: Federal Aviation Administration, Department of Transportation
This notice announces a meeting of the SOCAC.
Overview of FAA Aircraft Noise Policy and Research Efforts: Request for Input on Research Activities To Inform Aircraft Noise Policy; Extension of Comment Period
Document Number: 2021-05056
Type: Notice
Date: 2021-03-11
Agency: Federal Aviation Administration, Department of Transportation
This action extends the comment period on a summary review of FAA sponsored research programs on civil aircraft noise that could potentially inform future aircraft noise policy, which was published to the Federal Register on January 13, 2021. The FAA invites public comment on the scope and applicability of these research initiatives to address aircraft noise.
Youth Access to American Jobs in Aviation Task Force; Notice of Public Meeting
Document Number: 2021-05054
Type: Notice
Date: 2021-03-11
Agency: Federal Aviation Administration, Department of Transportation
This notice announces a meeting of the Youth Access to American Jobs in Aviation Task Force (YIATF).
Airworthiness Directives; Safran Helicopter Engines, S.A. (Type Certificate Previously Held by Turbomeca, S.A.) Turboshaft Engines
Document Number: 2021-05046
Type: Rule
Date: 2021-03-11
Agency: Federal Aviation Administration, Department of Transportation
The FAA is adopting a new airworthiness directive (AD) for all Safran Helicopter Engines, S.A. Arriel 2C, 2C1, 2S1, and 2S2 model turboshaft engines. This AD was prompted by investigations by the manufacturer following level 1 failures in flight (minor anomalies) and level 2 failures on the ground (minor failures), where cracks were found on the soldered joints of torque conformation boxes. This AD requires performing initial and repetitive inspections of the resistance values of the torque conformation box and, depending on the results of the inspections, replacement of the torque conformation box. The FAA is issuing this AD to address the unsafe condition on these products.
Airworthiness Directives; Airbus Defense and Space S.A. (Formerly Known as Construcciones Aeronauticas, S.A.) Airplanes
Document Number: 2021-05039
Type: Proposed Rule
Date: 2021-03-11
Agency: Federal Aviation Administration, Department of Transportation
The FAA proposes to adopt a new airworthiness directive (AD) for certain Airbus Defense and Space S.A. Model C-212-CB, C-212-CC, C- 212-CD, C-212-CE, C-212-CF, C-212-DE, and C-212-DF airplanes. This proposed AD was prompted by a report of cracks on the left-hand (LH) and right-hand (RH) side fuselage skin and on frame (FR) 5 underneath the skin, near the leading edge of the wing. This proposed AD would require repetitive inspections of the LH and RH side center wing fairings at FR 5, around the wing leading edge for discrepancies (cracks) and repair, 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: 2021-05038
Type: Proposed Rule
Date: 2021-03-11
Agency: Federal Aviation Administration, Department of Transportation
The FAA proposes to adopt a new airworthiness directive (AD) for certain Airbus SAS Model A350-941 and -1041 airplanes. This proposed AD was prompted by a report of in-production findings of missing or incorrect application of the lightning strike edge glow sealant protection at specific locations in the wing tanks. This proposed AD would require an inspection for missing or incorrect application of the lightning strike edge glow sealant protection at certain locations in the wing tanks, and corrective action, 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: 2021-05008
Type: Proposed Rule
Date: 2021-03-11
Agency: Federal Aviation Administration, Department of Transportation
The FAA proposes to adopt a new airworthiness directive (AD) for certain Airbus SAS Model A330-200, A330-300, A340-200, A340-300, A340-500, and A340-600 series airplanes. This proposed AD was prompted by reports that, for certain lower deck mobile crew rest (LDMCR) units, the connection of a certain halon outlet tube to the outlet of a certain fire extinguisher bottle may be incorrect. This proposed AD would require replacing each affected halon outlet tube with a flexible hose, 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: 2021-01625
Type: Proposed Rule
Date: 2021-03-11
Agency: Federal Aviation Administration, Department of Transportation
The FAA proposes to adopt a new airworthiness directive (AD) for all Pilatus Aircraft Ltd. (Pilatus) Model PC-24 airplanes. This proposed AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority of another country to identify and correct an unsafe condition on an aviation product. The MCAI identifies the unsafe condition as the need to revise certain airworthiness limitations and certification maintenance instructions. The FAA is proposing this AD to address the unsafe condition on these products.