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Airworthiness Directives

 

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15

The FAA is adopting a new airworthiness directive (AD) for Airbus Helicopters Model EC135P1, P2, P2+, T1, T2, and T2+ helicopters. This AD requires repetitive visual inspections of the ring frame X9227 for a crack and, if there is a crack, replacing the ring frame before further flight. This AD is prompted by a fatigue crack in the ring frame.

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15

The FAA is publishing a new airworthiness directive (AD) for Airbus Helicopters Model MBB-BK 117 A-3, MBB-BK 117 A-4, MBB-BK 117 B-1, and MBB-BK 117 C-2 helicopters with a certain Metro Aviation, Inc., vapor-cycle air conditioning kit pulley installed, which was sent previously to all known U.S. owners and operators of these helicopters. This AD supersedes AD 2013-12-06, which required inspecting the pulley for looseness and properly installed lockwire and re-installing the pulley.

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02

The FAA is adopting a new airworthiness directive (AD) for certain Pratt & Whitney Canada Corp. turboprop engines. This AD requires installing a reinforcement liner to the power turbine (PT) containment ring and, for certain PT containment rings, adding scallops.

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02

The FAA is adopting a new airworthiness directive (AD) for Columbia Helicopters, Inc. Model 234 helicopters. This AD requires visually and tap inspecting each fore and aft rotor blade for any defect, damage, or a disbond and, if necessary, repairing or replacing the blade.

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01

The FAA is superseding airworthiness directive (AD) 2007-10-07 for all Turbomeca S.A. Arriel 2B, 2B1, and 2B1A turboshaft engines. AD 2007-10-07 required an inspection of the splines of the coupling assembly and the hydro-mechanical metering unit (HMU) drive gear shaft for wear.

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30

The FAA is adopting a new airworthiness directive (AD) for certain Airbus Helicopters Model EC120B and EC130B4 helicopters. This AD requires replacing parts of the sliding door star support attachment assembly, depending on the outcome of required inspections.

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30

The FAA is adopting a new airworthiness directive (AD) for Airbus Helicopters Model MBB-BK 117 C-2 helicopters with a certain Goodrich rescue hoist damper unit (damper unit) installed. This AD requires repairing or replacing the damper unit or deactivating the rescue hoist.

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23

The FAA is adopting a new airworthiness directive (AD) for Agusta S.p.A. (Agusta) Model AB412 and AB412EP helicopters with a certain rotor brake pinion installed. This AD requires inspecting the rotor brake pinion for a crack, and replacing it if there is a crack.

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23

The FAA is superseding Airworthiness Directive (AD) 2003-05-03 for Bell Model 407 helicopters. This new AD retains the requirements of AD 2003-05-03 and requires additional inspection requirements.

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19

The FAA is adopting a new airworthiness directive (AD) for Agusta Model AB412 helicopters. This AD requires inspecting the main transmission lubricating system oil outlet hose for damage, and, if required, replacing the hose.

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