Federal Aviation Administration August 21, 2018 – Federal Register Recent Federal Regulation Documents

Airworthiness Directives; Rolls-Royce plc Turbojet Engines
Document Number: 2018-18021
Type: Rule
Date: 2018-08-21
Agency: Federal Aviation Administration, Department of Transportation
We are superseding Airworthiness Directive (AD) 2016-03-03 for all Rolls-Royce plc (RR) Viper Mk. 521, Viper Mk. 522, and Viper Mk. 601-22 turbojet engines. AD 2016-03-03 required reducing the life of certain critical parts. This AD requires reducing the life of certain critical parts and adds additional engine parts to the applicability. This AD was prompted by a determination made by RR that additional parts for the applicable RR Viper turbojet engine models are affected. We are issuing this AD to address the unsafe condition on these products.
Airworthiness Directives; Bell Helicopter Textron, Inc. (Bell) Helicopters
Document Number: 2018-17905
Type: Rule
Date: 2018-08-21
Agency: Federal Aviation Administration, Department of Transportation
We are superseding Airworthiness Directive (AD) 2017-15-02 for Bell Model 212 and 412 helicopters. AD 2017-15-02 required replacing certain oil and fuel check valves and prohibited installing them on any helicopter. This AD retains the requirements of AD 2017-15-02 and adds certain model helicopters to the applicability. This AD was prompted by the discovery of an error in the affected models. We are issuing this AD to address the unsafe condition on these products.
Airworthiness Directives; Leonardo S.p.A. Helicopters
Document Number: 2018-17903
Type: Proposed Rule
Date: 2018-08-21
Agency: Federal Aviation Administration, Department of Transportation
We propose to adopt a new airworthiness directive (AD) for Leonardo S.p.A. (Type Certificate Previously Held by Finmeccanica S.p.A., AgustaWestland S.p.A.) Model AW109SP helicopters. This proposed AD would require inspecting and altering the rescue hoist. This proposed AD is prompted by a report of a damaged hoist cable that detached after load application. The actions of this proposed AD are intended to address an unsafe condition on these products.
Airworthiness Directives; Bell Helicopter Textron Canada Limited Helicopters
Document Number: 2018-17902
Type: Proposed Rule
Date: 2018-08-21
Agency: Federal Aviation Administration, Department of Transportation
We propose to adopt a new airworthiness directive (AD) for Bell Helicopter Textron Canada Limited (Bell) Model 206A, 206B, 206L, 206L-1, 206L-3, 206L-4, and 407 helicopters. This proposed AD would require inspecting and cleaning the oil supply restrictor (restrictor) to the freewheel assembly. This proposed AD is prompted by reports of a blocked oil line restrictor in the freewheel lubrication system. The proposed actions are intended to address an unsafe condition on these products.
Airworthiness Directives; Bombardier, Inc., Airplanes
Document Number: 2018-17754
Type: Rule
Date: 2018-08-21
Agency: Federal Aviation Administration, Department of Transportation
We are superseding Airworthiness Directive (AD) 2014-05-28, which applied to certain Bombardier, Inc., Model DHC-8-400 series airplanes. AD 2014-05-28 required revising the maintenance or inspection program, as applicable. This AD requires revising the maintenance or inspection program, as applicable, to include a revised task. This AD was prompted by a determination that the interval from Maintenance Review Board (MRB) task number 323100-202 should not be escalated, and that Certification Maintenance Requirements (CMR) task number 323100-102 should be applicable to all Model DHC-8-400 series airplanes, regardless of which main landing gear (MLG) up-lock assembly is installed. We are issuing this AD to address the unsafe condition on these products.