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Airworthiness Directives
Turbomeca S.A.: Arriel 2D Turboshaft Engines
Thursday, January 31, 2013 (2959 reads)


The FAA is adopting a new airworthiness directive for Turbomeca S.A. Arriel 2D turboshaft engines. This AD was prompted by a low fuel pressure event caused by deterioration and a loss of the low-pressure drive function within the hydro-mechanical metering unit.



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Airworthiness Directives
Bell Helicopter Canada: Hydraulic Servo Actuator Assemblies
Thursday, January 24, 2013 (2896 reads)


The FAA is adopting a new airworthiness directive for Bell Model 206L, 206L-1, 206L-3, and 206L-4 helicopters. This AD requires inspecting certain hydraulic servo actuator assemblies for a loose nut, shaft, and clevis assembly, modifying or replacing the servo as necessary, and reidentifying the servo.



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Airworthiness Directives
Bell Helicopter: Main Rotor Yoke
Wednesday, January 23, 2013 (3094 reads)


The FAA is superseding four airworthiness directives related to the main rotor yoke on the Bell Model 204B, 205A, 205A-1, 205B, and 212 helicopters, to retain certain inspections and certain life limits, to require an increased inspection frequency for certain yokes, and to expand these inspections and retirement lives to other yokes.



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Airworthiness Directives
Lycoming Engines: Hartzell Engine Technologies Turbochargers
Wednesday, January 16, 2013 (3160 reads)


The FAA is correcting an airworthiness directive that published in the Federal Register. That AD applies to Lycoming Engines TSIO-540-AK1A, and Continental Motors, Inc. TSIO-360-MB, TSIO-360-SB, and TSIO-360-RB reciprocating engines, with certain Hartzell Engine Technologies turbochargers.



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Airworthiness Directives
Turbomeca: Arriel Turboshaft Engines
Tuesday, January 15, 2013 (2472 reads)


The FAA is adopting a new airworthiness directive for all Turbomeca S.A. Arriel 1A1, 1A2, 1B, 1C, 1C1, 1C2, 1D, 1D1, 1E2, 1K1, 1S, and 1S1 turboshaft engines. This AD requires performing a high gas generator speed rating vibration check.



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Airworthiness Directives
Eurocopter France: Main Gearbox
Monday, January 14, 2013 (2630 reads)


The FAA is adopting a new airworthiness directive for all Eurocopter France Model SA-365N, SA-365N1, AS-365N2, AS 365 N3, EC 155B, EC155B1, SA-365C, SA-365C1, SA-365C2, and SA-366G1 helicopters.



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Airworthiness Directives
Bell Helicopter: Starter/Generator Power Cable Assemblies
Friday, January 11, 2013 (2607 reads)


The FAA is adopting a new airworthiness directive for the Bell Helicopter Textron Inc. Model 205A, 205A-1, and 205B helicopters with certain starter/generator power cable assemblies.



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Airworthiness Directives
Honeywell International Inc.: Air Data Pressure Transducers
Thursday, January 10, 2013 (2523 reads)


The FAA is adopting a new airworthiness directive for certain Honeywell International Inc. air data pressure transducers as installed on various aircraft.



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Airworthiness Directives
Noise Certification Standards for Tiltrotors
Wednesday, January 09, 2013 (2635 reads)


A new rule amends the regulations governing noise certification standards for issuing type and airworthiness certificates for the civil, hybrid airplane-rotorcraft known as the tiltrotor.



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Airworthiness Directives
Eurocopter France: AERAZUR Emergency Flotation Gear
Friday, January 04, 2013 (2484 reads)


The FAA is adopting a new airworthiness directive for Eurocopter France Model AS350BA helicopters with certain AERAZUR emergency flotation gear container assemblies installed.



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Airworthiness Directives
Eurocopter EC135: Plain Journal Bearing and Swashplate Assembly
Wednesday, December 12, 2012 (2493 reads)


The FAA is adopting a new airworthiness directive for all Eurocopter Deutschland GmbH Model EC135 helicopters, except the EC 135 P2+ and T2+. This AD requires inspecting each upper and lower plain journal bearing and replacing the swashplate assembly with an airworthy swashplate assembly if a bearing is not correctly positioned.



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Airworthiness Directives
Agusta A109E and A109S: Lower Semichannel Assemblies
Wednesday, December 12, 2012 (2629 reads)


The FAA is adopting a new airworthiness directive for Agusta S.p.A. A109E and Model A109S helicopters with certain lower semichannel assemblies installed. This AD requires a one-time inspection of the lower semichannel assemblies to determine if metallic spacers are installed.



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Airworthiness Directives
Turbomeca Engines: Gas Generator Rotating Assembly
Monday, December 03, 2012 (882 reads)


The FAA is superseding an existing airworthiness directive for all Turbomeca S.A. Arriel 1A, 1A1, 1A2, 1B, 1C, 1C1, 1C2, 1D, 1D1, 1E, 1E2, 1K, 1K1, 1S, and 1S1 turboshaft engines. This new AD requires determining the engine history; performing a one-time visual inspection of the axial compressor for erosion; performing initial and repetitive cleaning of the gas generator hollow shaft; and replacing the rear bearing if the amount of dust collected during cleaning exceeds 8 grams.



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Airworthiness Directives
Turbomeca Engines: Fuel Control Units
Monday, December 03, 2012 (925 reads)


The FAA is superseding an existing airworthiness directive (AD) for all Turbomeca S.A. Arriel 1E2, 1S, and 1S1 turboshaft engines. This AD is effective January 7, 2013.



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Airworthiness Directives
Eurocopter France: Alouette Helicopters
Monday, November 26, 2012 (2939 reads)


The FAA is adopting a new airworthiness directive for all Eurocopter France Model SA.315B Alouette III, SE.3160 Alouette III, SA.316B Alouette III, SA.316C Alouette III, SA.319B Alouette III, SA 3180-ALOUETTE ASTAZOU, SA 318B-ALOUETTE ASTAZOU, and SA 318 C-ALOUETTE ASTAZOU helicopters.



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Airworthiness Directives
Eurocopter Deutschland GmbH: Generator Control Units
Wednesday, November 21, 2012 (2874 reads)


The FAA is adopting a new airworthiness directive for all Eurocopter Deutschland GmbH Model MBB-BK117 C-2 helicopters with certain Generator Control Units installed. This AD requires replacing the GCUs.



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Airworthiness Directives
Eurocopter: Upper and Lower Main Rotor Hub Shaft Flanges
Tuesday, November 20, 2012 (3177 reads)


The FAA is adopting a new airworthiness directive for Eurocopter Deutschland GmbH Model EC135 P1, EC135 P2, EC135 P2+, EC135 T1, EC135 T2, and EC135 T2+ helicopters. This is the Federal Register publication of an Emergency AD that was previously sent to all known owners and operators of these helicopters.



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Airworthiness Directives
Bell Helicopter Textron: Collective Lever Crack
Monday, November 19, 2012 (2995 reads)


The FAA is adopting a new airworthiness directive for Bell Helicopter Textron Model 412, 412EP, and 412CF helicopters. This AD requires a repetitive inspection of the collective lever for a crack, and if there is a crack, before further flight, replacing the collective lever with an airworthy collective lever.



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Airworthiness Directives
Sikorsky Aircraft Corporation: Tail Rotor Pylon
Friday, November 16, 2012 (2592 reads)


The FAA is adopting a new airworthiness directive for the Sikorsky Aircraft Corporation Model S-92A helicopters. This AD requires inspecting the tail rotor pylon for a loose or missing fastener, a crack, damage, or corrosion and adding an internal doubler to the aft shear deck tunnel assembly.



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Airworthiness Directives
Sikorsky Aircraft Corporation: Intermediate Gearbox
Friday, November 16, 2012 (2562 reads)


The FAA is superseding an existing Emergency airworthiness directive for Sikorsky Aircraft Corporation Model S-70, S-70A, S-70C, S-70C(M), and S-70C(M1) helicopters with a certain part-numbered intermediate gearbox.



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Airworthiness Directives
Sikorsky Aircraft Corporation: Throttle Stop/Engine Control Levers
Thursday, November 15, 2012 (3218 reads)


The FAA is adopting a new airworthiness directive for certain Sikorsky Aircraft Corporation Model S-76C helicopters. This AD requires installing an improved throttle stop and a wider trigger on the engine control levers.



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Airworthiness Directives
Agusta: Pilot's Collective Stick, Pilot's/Co-Pilot's Cyclic Stick
Wednesday, October 24, 2012 (3174 reads)


The European Aviation Safety Agency has issued EASA AD No. 2012-0213-E, dated October 16, 2012, to correct an unsafe condition for certain Agusta Model AW139 helicopters. EASA advises that an incident of an incorrectly installed pilot’s collective stick, pilot’s cyclic stick, and co-pilot’s cyclic stick was reported.



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Airworthiness Directives
MD Helicopters: Main Rotor Lower Hub Assembly
Tuesday, October 23, 2012 (6732 reads)


The FAA is adopting a new airworthiness directive to supersede an existing for MD Helicopters MD900s. The existing AD requires a visual inspection, and if necessary, an eddy current inspection of the main rotor lower hub assembly (lower hub) for a crack.



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Airworthiness Directives
Agusta: Electrical Power Distribution System
Tuesday, October 23, 2012 (2681 reads)


The FAA is adopting a new airworthiness directive for Agusta S.p.A. Model A109S helicopters to require modifying the electrical power distribution system to carry a higher electrical load.



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Airworthiness Directives
Eurocopter France: Epicyclic Modules
Tuesday, October 23, 2012 (2695 reads)


The FAA is adopting a new airworthiness directive for Eurocopter France Model EC225 helicopters with certain epicyclic modules installed. This AD requires inspecting the epicyclic module for the presence of a through-hole upstream of the magnetic plug.



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Airworthiness Directives
EMERGENCY: Eurocopter France: Laminated Half-Bearings
Wednesday, October 17, 2012 (2960 reads)


The FAA is issuing an emergency airworthiness directive - sent to owners and operators of Eurocopter France Model AS350B3 helicopters.



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Airworthiness Directives
Robinson: Emergency Floats Inflation Valve Assembly
Tuesday, October 16, 2012 (2336 reads)


The FAA is proposing to adopt a new airworthiness directive for Robinson Helicopter Company Model R44 and R44 II helicopters equipped with emergency floats, which would require replacing the inflation valve assembly.



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Airworthiness Directives
Eurocopter France: Inspections for Crack and Modification
Tuesday, October 16, 2012 (2453 reads)


The FAA is proposing to adopt a new airworthiness directive for Eurocopter France Model AS332C, L, and L1 helicopters to require an initial and repetitive inspections of the outer skin, butt strap, and fuselage frame for a crack and modification of the helicopter.



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Airworthiness Directives
Bell Helicopter: Cracking in Swashplate Outer Ring Assemblies
Tuesday, September 25, 2012 (2901 reads)


The FAA is proposing to adopt a new airworthiness directive for Bell Helicopter Textron, Inc. Model 412 and 412EP helicopters. This is prompted by reports of cracking in the swashplate outer ring assemblies.



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Airworthiness Directives
Lycoming Engines: Reciprocating Engines
Thursday, September 20, 2012 (2575 reads)


The FAA is superseding an existing airworthiness directive for certain Lycoming Engines reciprocating engines. That AD currently requires replacing certain crankshafts in the affected engines.



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Airworthiness Directives
Eurocopter France: Tangential Gearbox Fuel Shut-Off Control Lever
Wednesday, September 19, 2012 (2580 reads)


The FAA is adopting a new airworthiness directive for Eurocopter France Model SA330F, SA330G, SA330J, AS332C, AS332L, AS332L1, and AS332L2 helicopters to require cleaning, inspecting, and lubricating each tangential gearbox and adjusting, as necessary, the fuel shut-off control lever.



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Airworthiness Directives
Turbomeca S.A.: Arriel 2B and 2B1 Turboshaft Engines
Wednesday, September 19, 2012 (2491 reads)


The FAA is superseding an existing airworthiness directive for certain Turbomeca S.A. Arriel 2B and 2B1 turboshaft engines. This new AD requires adding the Arriel 2S2 and 2C2 engines to the applicability of engines requiring the TU166 modification with different compliance times.



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Airworthiness Directives
Bell Helicopter Canada: Tail Boom Attachment Hardware
Monday, September 17, 2012 (2890 reads)


The FAA is adopting a new airworthiness directive for the Bell Helicopter Textron Canada Limited Model 407 helicopters. This AD requires you to replace tail boom attachment hardware, and perform initial and recurring determinations of the torque on the nuts of the tail boom-attachment bolts at all four attachment locations.



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Airworthiness Directives
Eurocopter France: Rotating Star
Friday, September 14, 2012 (2541 reads)


The FAA is adopting a new airworthiness directive for Eurocopter France Model SA341G helicopters. This AD requires replacing any rotating star with more than 12,000 hours TIS.



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Airworthiness Directives
Sikorsky Aircraft Corporation: Class D External Load Operations
Friday, September 14, 2012 (2969 reads)


The FAA is revising an earlier proposed airworthiness directive for the Sikorsky Aircraft Corporation Model S-92A helicopter, which proposed revising the Rotorcraft Flight Manual, Operating Limitations section, to prohibit Class D external load operations.



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Airworthiness Directives
Restricted Category Helicopters: Main Rotor Blade Assembly
Thursday, September 13, 2012 (3021 reads)


The FAA is adopting a new airworthiness directive for various restricted category Model HH-1K, TH-1F, TH-1L, UH-1A, UH-1B, UH-1E, UH-1F, UH-1H, UH-1L, and UH-1P helicopters with certain main rotor blade assemblies.



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Airworthiness Directives
Sikorsky Aircraft Corporation: GE Engine GGT Rotor Parts
Tuesday, September 11, 2012 (2842 reads)


The FAA is proposing to adopt a new airworthiness directive for the Sikorsky Model S-70, S-70A, S-70C, S-70C (M), and S-70C (M1) helicopters with General Electric T700-GE-401C or T700-GE-701C engines installed.



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Airworthiness Directives
Eurocopter France: Servo-Control Hydraulic Hoses
Thursday, September 06, 2012 (2680 reads)


The FAA is adopting a new airworthiness directive for certain Eurocopter France Model AS350 helicopters. This AD requires installing protection sleeves over certain forward (pitch) servo-control hydraulic hoses.



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Airworthiness Directives
Eurocopter France: Cracked Main Rotor Mast Nut
Wednesday, September 05, 2012 (2881 reads)


The FAA is adopting a new airworthiness directive for all Eurocopter France Model SA-365N, SA-365N1, SA-366G1, AS-365N2, AS 365 N3, EC 155B, and EC155B1 helicopters. This AD was prompted by the discovery of a cracked main rotor mast nut.



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Airworthiness Directives
Eurocopter Deutschland: Tail Rotor Corrosion or Thread Damage
Wednesday, September 05, 2012 (2504 reads)


The FAA is proposing to adopt a new airworthiness directive for Eurocopter Deutschland GmbH Model BO-105A, BO-105C, BO-105S, BO-105LS A-1, BO-105LS A-3, 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.



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Airworthiness Directives
Honeywell International Inc: Turbofan Engines
Tuesday, August 28, 2012 (2655 reads)


The FAA is adopting a new airworthiness directive for all Honeywell TFE731-20R, -20AR, -20BR, -40, -40AR, -40R, -50R, and -60 turbofan engines.



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Airworthiness Directives
Eurocopter France: Converting VIP 4-Seat Bench into 3-Seat
Thursday, August 23, 2012 (2511 reads)


The FAA is adopting a new airworthiness directive for Eurocopter France Model EC155B and EC155B1 helicopters with a VIP 4-seat bench to require revising the Limitations section of the Rotorcraft Flight Manual and converting the VIP 4-seat bench into a 3-seat configuration.



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Airworthiness Directives
Eurocopter Deutschland: Rotorcraft Flight Manual Correction
Friday, August 17, 2012 (3047 reads)


The FAA is correcting an airworthiness directive that was published in the Federal Register. That AD applies to Eurocopter Deutschland GmbH Model MBB-BK 117 C-2 helicopters.



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Airworthiness Directives
Sikorsky Aircraft Corporation: Electric Rotor Brake
Friday, August 17, 2012 (3370 reads)


The FAA is adopting a new airworthiness directive for Sikorsky Aircraft Corporation Model S-76A helicopters to require modifying the electric rotor brake and inserting changes into the "Normal Procedures" and "Emergency Procedures" sections of the Rotorcraft Flight Manual.



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Airworthiness Directives
Restricted Category Helicopters: Blade Tip Block/Aft Tip Closure
Monday, July 30, 2012 (3267 reads)


The FAA is adopting a new airworthiness directive for various restricted category helicopters, requiring inspection of tail rotor blade forward tip weight retention blocks and aft tip closures for adhesive bond voids.



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Airworthiness Directives
Eurocopter France: Automated Flight Control System
Friday, July 27, 2012 (2760 reads)


The FAA is adopting a new airworthiness directive for Eurocopter France Model EC155B1 helicopters with a certain automated flight control system installed.



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Airworthiness Directives
Eurocopter Deutschland: External-Hoist System
Friday, July 27, 2012 (2770 reads)


The FAA is adopting a new airworthiness directive for all Eurocopter Deutschland MBB-BK 117 A-3, MBB-BK 117 A-4, MBB-BK B-1, MBB-BK 117 B-2, and MBBBK C-1 helicopters equipped with a certain external-hoist system.



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Airworthiness Directives
Restricted Category Helicopters: Crack, Main Rotor Mast
Monday, July 23, 2012 (2821 reads)


The FAA is adopting a new airworthiness directive for Arrow Falcon Exporters, Rotorcraft Development Corporation, and San Joaquin Helicopters Model OH- 58A, OH-58A+, and OH-58C helicopters to require inspecting the main rotor mast for a crack.



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Airworthiness Directives
Columbia and Kawasaki: Upper Collective Pitch Control Yoke Bolts
Monday, July 23, 2012 (2449 reads)


The FAA is adopting a new airworthiness directive for CHI Model 107-II and Kawasaki Model KV107-II and KV107-IIA helicopters. This AD requires, before further flight, replacing certain upper collective pitch control yoke bolts.



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Airworthiness Directives
Eurocopter Deutschland: Tail Rotor Pitch Link Spherical Bearing
Monday, July 23, 2012 (2905 reads)


The FAA is adopting a new airworthiness directive for Eurocopter Deutschland Model MBB-BK 117 and BO-105LS A-3 helicopters. This AD requires inspecting the tail rotor pitch link spherical bearing for proper swaging.



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Airworthiness Directives
Honeywell: Global Navigation Satellite Sensor Units
Friday, July 20, 2012 (2882 reads)


The FAA is adopting a new airworthiness directive for certain aircraft equipped with Honeywell Model KGS200 Mercury2 wide area augmentation system global navigation satellite sensor units.



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Airworthiness Directives
Bell Helicopter Textron Canada Ltd.: Rotorcraft Servo System
Thursday, July 19, 2012 (2733 reads)


The FAA is adopting an airworthiness directive for Bell 407 and 427 helicopters. The existing AD requires inspecting certain hydraulic servo actuators to determine whether the shaft turns independently of the nut or the clevis assembly.



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Airworthiness Directives
Sikorsky Aircraft Corporation: Main Rotor Gearbox
Tuesday, July 17, 2012 (2844 reads)


The FAA is adopting a new airworthiness directive for Sikorsky Aircraft Corporation Model S-92A helicopters. This AD requires inspecting the main gearbox for a crack.



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Airworthiness Directives
Rolls-Royce Corporation: Turboshaft Engines
Tuesday, July 10, 2012 (2779 reads)


The FAA is adopting a new airworthiness directive for certain Rolls-Royce 250-C20, -C20B, and -C20R/2 turboshaft engines. This AD was prompted by seven cases reported of released turbine blades and shrouds.



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Airworthiness Directives
Eurocopter Deutschland: Generator Monitor
Tuesday, June 26, 2012 (2859 reads)


The FAA is superseding an existing airworthiness directive (AD) for all Eurocopter Deutschland GmbH (ECD) Model MBB-BK 117 C-2 helicopters. Before the FAA issued that AD, the manufacturer developed a procedure which provides terminating action for the AD's requirements. The superceding AD is intended to require implementing this terminating action.



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Airworthiness Directives
Eurocopter Deutschland: Ring Frame Crack
Tuesday, June 26, 2012 (2862 reads)


The FAA is adopting a new airworthiness directive (AD) that supersedes an existing Emergency Airworthiness Directive (EAD) for certain Eurocopter Deutschland GmbH (ECD) Model EC135 helicopters. Since the FAA issued that EAD, the agency has determined that a pre-flight pilot check in conjunction with a recurring 25-hour inspection is sufficient for determining the airworthiness of the ring frame.



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Airworthiness Directives
Agusta: Generator Control Unit
Tuesday, June 26, 2012 (2610 reads)


The FAA is adopting a new airworthiness directive (AD) for Agusta S.p.A. (Agusta) Model AB139 and AW139 helicopters with a certain generator control unit (GCU), to require replacing each affected GCU with an airworthy GCU.



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Airworthiness Directives
Aeronautical Accessories: Landing Gear Aft Crosstube Assembly
Tuesday, June 26, 2012 (2928 reads)


The FAA is adopting a a new airworthiness directive for the Aeronautical Accessories, Inc. High Landing Gear Aft Crosstube Assembly installed on certain Bell Helicopter Textron, Inc. and Agusta S.p.A. model helicopters.



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Airworthiness Directives
Turbomeca Arriel Digital Engine Control Units
Thursday, June 21, 2012 (2543 reads)


The FAA is adopting a new airworthiness directive for Turbomeca S.A. Arriel 2C1, 2C2, and 2S2 turboshaft engines. This AD requires replacement of affected digital engine control units.



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Airworthiness Directives
Bell Helicopter NVIS Filter
Thursday, June 21, 2012 (2906 reads)


The FAA is adopting a new airworthiness directive for Bell Helicopter Textron Canada Model 206, 206A, 206A-1, 206B, 206B-1, 206L, 206L-1, 206L-3, and 206L-4 helicopters with Aviation Specialties Unlimited Night Vision Imaging System lighting modified by STS SR01383SE.



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Airworthiness Directives
Enstrom Helicopter Corporation Trim Relay
Tuesday, June 19, 2012 (2811 reads)


The FAA is superseding an existing airworthiness directive for Enstrom Model F-28C, F-28C-2, F-28F, 280C, 280F, 280FX, TH-28, 480, and 480B helicopters to add another trim relay to the applicability and to revise the modification instructions.



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Airworthiness Directives
Agusta AW139: Collective Control Rod C2 to Torque Tube C3
Monday, June 18, 2012 (2910 reads)


The FAA is adopting a new airworthiness directive for Agusta S.p.A. Model AW139 helicopters to determine if the hardware that attaches the upper end of collective control rod C2 to torque tube C3 is properly installed.



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Airworthiness Directives
Bell Helicopter 412 Collective
Thursday, June 14, 2012 (3201 reads)


AIN Online - The FAA is proposing an airworthiness directive for the Bell Helicopter 412, 412EP and 412CF. It is the result of a reported failure of a collective lever.



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Airworthiness Directives
Eurocopter SA330, AS332 and EC225 Helicopters
Friday, June 08, 2012 (3217 reads)


The European Aviation Safety Agency his issued an Emergency Airworthiness Directive regarding Eurocopter helicopters. A serious incident has been reported on a helicopter that encountered a hydraulic failure while landing on an offshore oil rig.



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Airworthiness Directives
Eurocopter Deutschland GMBH Helicopters
Tuesday, June 05, 2012 (2987 reads)


The FAA is adopting an Airworthiness Directive for Eurocopter Deutschland GMBH Model MBB-BK 117 C-1 and C-2 helicopters that requires installing a placard corresponding to the maximum permissible flight altitude.



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