June 2018 – Federal Register Recent Federal Regulation Documents
Results 551 - 555 of 555
Special Conditions: Textron Aviation Inc. Model 700 Series Airplanes; Installed Rechargeable Lithium Batteries
These special conditions are issued for the Textron Aviation Inc. (Textron) Model 700 series airplanes. These airplanes will have a novel or unusual design feature when compared to the state of technology envisioned in the airworthiness standards for transport category airplanes. This design feature is the installation of rechargeable lithium batteries. The applicable airworthiness regulations do not contain adequate or appropriate safety standards for this design feature. These special conditions contain the additional safety standards that the Administrator considers necessary to establish a level of safety equivalent to that established by the existing airworthiness standards.
Airworthiness Directives; Airbus Helicopters Deutschland GmbH Helicopters (Previously Eurocopter Deutschland GmbH)
We propose to revise Airworthiness Directive (AD) 2014-05-06 for Eurocopter Deutschland GmbH Model EC135 and MBB-BK 117C-2 helicopters. AD 2014-05-06 requires repetitive inspections of the flight-control bearings, replacing any loose bearings with airworthy flight-control bearings, and installing bushings and washers. This proposed AD would retain the requirements of AD 2014-05-06 but would remove the repetitive inspections. The actions of this proposed AD are intended to correct an unsafe condition on these products.
Airworthiness Directives; Airbus Helicopters
We are adopting a new airworthiness directive (AD) Airbus Helicopters Model SA-365C, SA-365C1, and SA-365C2 helicopters. This AD requires establishing a life limit of 2,000 hours time-in-service (TIS) for the Starflex star/mast connecting bolt (bolt) and removing from service each bolt that exceeds its life limit. This AD is prompted by the discovery that the bolt's life limit was not included in helicopter maintenance records. The actions of this AD are intended to prevent an unsafe condition on these products.
Airworthiness Directives; Bell Helicopter Textron Canada Helicopters
We propose to adopt a new airworthiness directive (AD) for Bell Helicopter Textron Canada (BHTC) Model 427 helicopters. This proposed AD would require inspecting the inboard skin of the vertical fin around the four tailboom attachment points. This proposed AD is prompted by reports of cracked vertical fin skins that resulted from metal fatigue. The actions of this proposed AD are intended to prevent an unsafe condition on these products.
Airworthiness Directives; Austro Engine GmbH Engines
We propose to adopt a new airworthiness directive (AD) for certain Austro Engine GmbH model E4 engines and for all model E4P engines. This proposed AD was prompted by reports of considerable wear on the timing chain on these engines. This proposed AD would require replacement of the timing chain and amending certain airplane flight manuals to limit use of windmill restarts. We are proposing this AD to address the unsafe condition on these products.
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