Federal Aviation Administration March 12, 2021 – Federal Register Recent Federal Regulation Documents

Airworthiness Directives; Airbus Helicopters
Document Number: 2021-05151
Type: Rule
Date: 2021-03-12
Agency: Federal Aviation Administration, Department of Transportation
The FAA is adopting a new airworthiness directive (AD) for all Airbus Helicopters Model AS350B, AS350BA, AS350B1, AS350B2, AS350B3, AS350C, and AS350D helicopters; Model AS355E, AS355F, AS355F1, AS355F2, AS355N, and AS355NP helicopters; and Model EC130B4 and EC130T2 helicopters. This AD was prompted by a report of failed main rotor hub- to-mast attachment screws. This AD requires determining whether the helicopter has been operated in a severe environment since the last inspection of the main rotor hub-to-mast attachment screws, an inspection of the main rotor hub-to-mast attachment screws if the helicopter has been operated in a severe environment, and replacement of the main rotor hub-to-mast attachment screws if necessary, as specified in a European Aviation Safety Agency (now 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; Bell Textron Canada Limited (Type Certificate Previously Held by Bell Helicopter Textron Canada Limited) Helicopters
Document Number: 2021-05149
Type: Proposed Rule
Date: 2021-03-12
Agency: Federal Aviation Administration, Department of Transportation
The FAA is reopening the comment period for an earlier proposed rulemaking (NPRM) for certain Bell Textron Canada Limited (type certificate previously held by Bell Helicopter Textron Canada Limited) Model 206L series helicopters. The NPRM proposed to require replacing certain low fuel level detector switch units (switch units) and testing certain other switch units to determine if replacement is required. The NPRM was prompted by a manufacturing flaw that could cause the switch units to hang in the high position and fail to indicate a low fuel condition. This action reopens the comment period because a significant amount of time has elapsed since the NPRM was published. This action also revises the NPRM by updating the type certificate holder's name, updating the estimated cost information, clarifying and expanding the applicability, clarifying the requirements, adding a compliance time, and adding parts installation prohibitions. 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 NPRM, the agency is requesting comments on this SNPRM.
Airworthiness Directives; Airbus Helicopters Deutschland GmbH Helicopters
Document Number: 2021-05148
Type: Proposed Rule
Date: 2021-03-12
Agency: Federal Aviation Administration, Department of Transportation
The FAA proposes to adopt a new airworthiness directive (AD) for certain Airbus Helicopters Deutschland GmbH Model BO-105A, BO-105C, BO-105S, and BO-105LS A-3 helicopters. This proposed AD was prompted by the FAA's determination that aging of the elastomeric material in a tension torsion strap (TT-strap) could affect the structural characteristics of the TT-strap. This proposed AD would require replacement of certain TT-straps with serviceable parts and implementation of a new storage life limit for TT-straps, as specified in a European Aviation Safety Agency (now 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; Leonardo S.p.a. Helicopters
Document Number: 2021-05147
Type: Rule
Date: 2021-03-12
Agency: Federal Aviation Administration, Department of Transportation
The FAA is adopting a new airworthiness directive (AD) for certain serial-numbered Leonardo S.p.a. (Leonardo) Model A109S and AW109SP helicopters. This AD requires installing a placard in the baggage compartment, revising the existing Rotorcraft Flight Manual (RFM) for your helicopter, and inspecting the installation of the terminal lugs. Depending on the outcome of the inspection, this AD requires restoring the installation of the terminal lugs. This AD would also require modifying the helicopter to shim the baggage fairing assy (fwd up) away from the circuit breaker panel and incorporating protective coverings. This AD was prompted by reports of several occurrences of fire ignition and smoke in the baggage compartment. The actions of this AD are intended to address an unsafe condition on these products.
Airworthiness Directives; Airbus Helicopters Deutschland GmbH (Type Certificate Previously Held by Eurocopter Deutschland GmbH) Helicopters
Document Number: 2021-05146
Type: Rule
Date: 2021-03-12
Agency: Federal Aviation Administration, Department of Transportation
The FAA is adopting a new airworthiness directive (AD) for Airbus Helicopters Deutschland GmbH (Airbus Helicopters) Model BO-105A, BO-105C, BO-105S, MBB-BK 117 A-1, MBB-BK 117 A-3, MBB-BK 117 A-4, MBB- BK 117 B-1, MBB-BK 117 B-2, and MBB-BK 117 C-1 helicopters. This AD was prompted by a report of a loss of electrical ground between the starter-generator and the generator voltage regulator (regulator). This AD requires inspecting the starter-generator electrical ground connection, retrofitting the starter-generator wire harness, and depending on model, revising the existing Rotorcraft Flight Manual (RFM) for your helicopter. The FAA is issuing this AD to address the unsafe condition on these products.
Airworthiness Directives; Airbus Helicopters
Document Number: 2021-05145
Type: Rule
Date: 2021-03-12
Agency: Federal Aviation Administration, Department of Transportation
The FAA is superseding Airworthiness Directive (AD) 2018-15- 02, which applied to certain Airbus Helicopters Model AS350B, AS350B1, AS350B2, AS350B3, AS350BA, AS355E, AS355F, AS355F1, AS355F2, AS355N, and AS355NP helicopters. AD 2018-15-02 required repetitively inspecting the tail rotor (TR) pitch rod for a damaged elastomeric ball joint, and corrective action if necessary. This AD continues to require the repetitive inspections and allows the repetitive inspection interval to be extended under certain conditions, as specified in a European Union Aviation Safety Agency (EASA) AD, which is incorporated by reference. This AD was prompted by a report of several cases of damaged TR pitch rod ball joints. The FAA is issuing this AD to address the unsafe condition on these products.
Airworthiness Directives; Airbus Helicopters
Document Number: 2021-05143
Type: Rule
Date: 2021-03-12
Agency: Federal Aviation Administration, Department of Transportation
The FAA is adopting a new airworthiness directive (AD) for all Airbus Helicopters Model SA330J helicopters. This AD was prompted by report of failure of a second stage planet gear of the main gear box (MGB). This AD requires replacement of the MGB particle detector assembly with an improved, elongated MGB particle detector assembly, 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
Document Number: 2021-05142
Type: Rule
Date: 2021-03-12
Agency: Federal Aviation Administration, Department of Transportation
The FAA is superseding Airworthiness Directive (AD) 2016-23- 05, which applied to certain Airbus Helicopters Model SA-365N1, AS- 365N2, AS 365 N3, SA-366G1, EC 155B, and EC155B1 helicopters. AD 2016- 23-05 required repetitive checks of the oil level of the tail rotor gearbox and, if necessary, filling the oil to the maximum level; and replacement of a certain control rod double bearing (bearing) with a new bearing. This AD retains the requirements of AD 2016-23-05 and also requires modifying the helicopter by replacing the tail gearbox (TGB) control shaft guide bushes; repetitive inspections of the TGB magnetic plug and corrective actions if necessary; repetitive replacements of the bearing; and modifying the helicopter by replacing the TGB; as specified in a European Aviation Safety Agency (now European Union Aviation Safety Agency) (EASA) AD, which is incorporated by reference. This AD also adds helicopters to the applicability. This AD was prompted by reports of occurrences of loss of yaw control due to failure of the TGB bearing. The FAA is issuing this AD to address the unsafe condition on these products.
Proposed Amendment of Class E Airspace; Yoakum, TX
Document Number: 2021-05139
Type: Proposed Rule
Date: 2021-03-12
Agency: Federal Aviation Administration, Department of Transportation
This action proposes to amend the Class E airspace extending upward from 700 feet above the surface at Yoakum Municipal Airport, Yoakum, TX. The FAA is proposing this action as the result of an airspace review caused by the decommissioning of the Yoakum non- directional beacon (NDB). The geographic coordinates of the airport would also be updated to coincide with the FAAs aeronautical database.
Revocation and Amendment of Class E Airspace; Orange City and Le Mars, IA
Document Number: 2021-05119
Type: Rule
Date: 2021-03-12
Agency: Federal Aviation Administration, Department of Transportation
This action removes the Class E airspace extending upward from 700 feet above the surface at Orange City Municipal Airport, Orange City, IA and amends the Class E airspace extending upward from 700 feet above the surface at the Le Mars Municipal Airport, Le Mars, IA. This action is the result of an airspace review caused by the decommissioning of Orange City (ORC) non-directional beacon (NDB), and the Automated Weather Observing System (AWOS) navigation aids, and the closure of the Orange City Municipal Airport. Additionally, the geographical coordinates for the Le Mars Municipal Airport, Le Mars, IA, have been updated to coincide with the FAA's aeronautical database.
Airworthiness Directives; Safran Helicopter Engines, S.A. (Type Certificate Previously Held by Turbomeca, S.A.) Turboshaft Engines
Document Number: 2021-05047
Type: Proposed Rule
Date: 2021-03-12
Agency: Federal Aviation Administration, Department of Transportation
The FAA proposes to supersede Airworthiness Directive (AD) 2014-04-06, which applies to all Safran Helicopter Engines, S.A. (Safran Helicopter Engines) Arrius 2B1, 2B1A, 2B2, and 2K1 model turboshaft engines. AD 2014-04-06 requires initial and repetitive inspections of the hydro-mechanical metering unit (HMU) high pressure pump drive gear shaft splines, cleaning and inspections of the sleeve assembly splines, and replacement of the sleeve assembly on the affected high pressure pump drive gear shaft or replacement of the HMU if the HMU fails inspection. Since the FAA issued AD 2014-04-06, the manufacturer has published new service information that revises the inspections for certain HMUs and reduces compliance times for initial inspections. This proposed AD would require revised inspections and continue to require cleaning of the sleeve assembly splines, and replacement of the sleeve assembly on the affected high pressure pump drive gear shaft or replacement of the HMU if the HMU fails an inspection. The FAA is proposing this AD to address the unsafe condition on these products.
Petition for Exemption; Summary of Petition Received; Rolls-Royce Deutschland Ltd & Co KG (Type Certificate Previously Held by Rolls-Royce plc)
Document Number: 2021-02206
Type: Notice
Date: 2021-03-12
Agency: Federal Aviation Administration, Department of Transportation
This notice contains a summary of a petition by Rolls-Royce Deutschland LTD & Co KG seeking relief from specific regulatory requirements. 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.