Cyclic

EASA AD 2026-0081 — applicable to Airbus EC135, Airbus EC145

EASA AD 2026-0080 — applicable to Airbus EC135

The FAA is adopting a new airworthiness directive (AD) for all Airbus Helicopters Deutschland GmbH Model MBB-BK 117 D-3 helicopters. This AD was prompted by a determination that certain bolts installed on the horizontal control rods of the flight controls were not dye penetrant inspected for cracks during manufacturing and thus could lead to bolt failure. This AD requires replacement of affected bolts with bolts that are eligible for installation. This AD also prohibits installing an affected bolt on any helicopter. The FAA is issuing this AD to address the unsafe condition on these products.

The FAA is adopting a new airworthiness directive (AD) for certain Bell Textron Canada Limited Model 429 helicopters. This AD was prompted by reports of incorrectly installed lockwire on the stability and control augmentation system (SCAS) actuator jam nut. This AD requires inspecting the installation of the lockwire on the SCAS actuator jam nut and, if the lockwire is incorrectly installed, removing the lockwire and installing a new lockwire correctly. This AD also prohibits the installation of an affected SCAS actuator assembly unless certain requirements are met. The FAA is issuing this AD to address the unsafe condition on these products.

The FAA is adopting a new airworthiness directive (AD) for all Airbus Helicopters Deutschland GmbH (AHD) Model 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 main rotor head (MRH) having the same part number (P/N) and serial number (S/N) as another MRH due to incorrect modification instructions where the modified part S/N was not re-identified and the MRH can be operated with the wrong associated log card if accidently interchanged. This AD requires performing a one-time consistency check of the P/N and S/N of the MRH, performing corrective actions if applicable, determining if the MRH has been modified, and re-identifying the modified MRH. This AD also allows replacing the MRH as an optional action and prohibits the installation of an affected MRH on any helicopter. The FAA is issuing this AD to address the unsafe condition on these products.

The FAA is adopting a new airworthiness directive (AD) for certain Bell Textron Canada Limited (Bell) Model 505 helicopters. The FAA previously sent this AD as an emergency AD to all known U.S. owners and operators of these helicopters. This AD was prompted by a failure of the hinge assembly on the aft movable ballast box assembly, which could allow the ballast weights to escape the ballast box and strike the tail rotor assembly. This AD requires revising the Limitations section of the existing rotorcraft flight manual (RFM) for the helicopter to prohibit the use of ballast weights within the aft movable ballast box assembly. The FAA is issuing this AD to address the unsafe condition on these products.

The FAA is adopting a new airworthiness directive (AD) for all Leonardo S.p.A. Model AB139 and AW139 helicopters. This AD was prompted by a report of interference found in the overhead panel area between the electrical cables and adjacent connectors. This AD requires repetitively inspecting the overhead panel and, depending on the results, repairing or replacing the damaged wires. This AD also requires modifying the overhead panel on certain helicopters. The FAA is issuing this AD to address the unsafe condition on these products.

The FAA is adopting a new airworthiness directive (AD) for certain Leonardo S.p.a. Model AB139 and AW139 helicopters with a certain supplemental type certificate (STC) installed. This AD was prompted by the absence of instructions on the information placards located next to the rear-facing seats to lock the seat headrest in the highest position during takeoff and landing. This AD requires revising the existing rotorcraft flight manual supplement (RFMS) and replacing the information placard with one that specifies instructions for locking the seat headrest. The FAA is issuing this AD to address the unsafe condition on these products.

Tail rotor drive shaft – flexible coupling axial-displacement inspection and replacement. | Note: Timing-gap example: EASA 2023-0197 effective 2023-11-24; FAA 2026-02-01 effective 2026-02-26 — ~27-month lag.

The FAA is adopting a new airworthiness directive (AD) for all Airbus Helicopters Deutschland GmbH (AHD) Model MBB-BK117 D-3 helicopters. This AD was prompted by a report of excessive wear on the bearing bolts, installed on the swashplate, connecting the cardan ring and the control ring assembly. This AD requires initial and repetitive inspections of the swashplate for vertical and radial play and, depending on the results of the inspections, corrective actions. This AD also prohibits installing any affected bolt unless the bolts are new or certain requirements are met. The FAA is issuing this AD to address the unsafe condition on these products.

The FAA is adopting a new airworthiness directive (AD) for all Airbus Helicopters Deutschland GmbH Model MBB-BK 117 C-2, MBB-BK 117 D- 2, and MBB-BK 117 D-3 helicopters. This AD was prompted by reports of damaged hoist hooks and hoist hook nuts. This AD requires performing an inspection of the affected hoist hook and affected hook nut and, depending on the results of the inspection, replacing the affected hoist hook and affected hook nut. This AD also prohibits installing an affected assembly (hoist hook attached to the hook damper) on any helicopter, and prohibits installing an affected hoist hook on any helicopter unless it is installed using updated procedures. The FAA is issuing this AD to address the unsafe condition on these products.

Fuselage – mounts and attachment (MGB suspension bars area) – checks/replacement on AS350 / EC130 family. | Note: FAA bilateral adoption not yet published as of 2026-04-23. Demonstrated to customer; flagship example in platform.

The FAA is adopting a new airworthiness directive (AD) for all Leonardo S.p.A. Model A119 and AW119 MKII helicopters. This AD was prompted by reports of trapped residue in the rear pneumatic line due to a non-optimal cleaning procedure. This AD requires accomplishing repetitive engine acceleration checks and, depending on the results, replacing the rear pneumatic line and inspecting the fuel control unit (FCU), and accomplishing any necessary corrective actions. This AD also requires replacing certain parts if the engine acceleration check exceeds the maximum limit, which terminates the repetitive acceleration checks. If the limits do not exceed the maximum limit, this AD would allow this replacement as an optional terminating action. Additionally, this AD prohibits installing an affected engine or FCU on a helicopter unless certain requirements are met. The FAA is issuing this AD to address the unsafe condition on these products.

The FAA is adopting a new airworthiness directive (AD) for all Airbus Helicopters Deutschland GmbH Model MBB-BK 117 C-2 and MBB-BK 117 D-2 helicopters. This AD was prompted by reports of significant wear of the spherical bearings of the control rod assembly and pitch link assembly. This AD requires measuring the radial play of certain spherical bearings of control rod assemblies and pitch link assemblies, reporting the results, and depending on the results, taking corrective action. This AD also prohibits installing certain control rod assemblies and pitch link assemblies unless certain requirements are met. The FAA is issuing this AD to address the unsafe condition on these products.

The FAA is adopting a new airworthiness directive (AD) for certain Airbus Helicopters Model AS 350B2, AS 350B3, AS355N, AS355NP, and EC 130 B4 helicopters. This AD was prompted by a report of a loss of cargo load during cargo swing operation on a helicopter due to an incorrect adjustment of the release cable of the cargo swing emergency release control. This AD requires a one-time inspection of the cargo swing emergency release control and, depending on the results, corrective actions. The FAA is issuing this AD to address the unsafe condition on these products.

The FAA is superseding Airworthiness Directive (AD) 2024-09- 02, which applies to all Leonardo S.p.a. Model AW169 helicopters. AD 2024-09-02 required replacing certain aft float assemblies or, as an alternative, deactivating the emergency flotation system (EFS). AD 2024-09-02 also prohibited the installation of certain forward and aft float assemblies. Since the FAA issued AD 2024-09-02, the FAA has determined that replacing additional forward and aft float assemblies is necessary. This AD retains all the actions of AD 2024-09-02 and also requires replacing certain forward and aft float assemblies within 24 months or during the next accomplishment of a certain maintenance task. The FAA is issuing this AD to address the unsafe condition on these products.

Replace certain forward and aft float assemblies on AW169 emergency flotation system; supersedes 2024-09-02 to add additional affected assemblies.

The FAA is adopting a new airworthiness directive (AD) for all Airbus Helicopters Deutschland GmbH Model MBB-BK 117 D-2 and MBB-BK 117 D-3 helicopters. This AD was prompted by reports of airspeed and altitude indication errors. This AD requires revising the existing rotorcraft flight manual supplement (RFMS) for the helicopter, replacing the air conditioning system (ACS) condenser outlet grids with ACS condenser outlet covers, and prohibiting the installation of ACS condenser outlet grids. The FAA is issuing this AD to address the unsafe condition on these products.

The FAA is superseding Airworthiness Directive (AD) 2025-06- 51, which applied to certain Bell Textron Canada Limited (Bell) Model 505 helicopters. AD 2025-06-51 required removing all ballast weights from the aft movable ballast box assembly and prohibited the use of ballast weights within the aft movable ballast box assembly. Since the FAA issued AD 2025-06-51, Bell has developed a modification to the ballast box door assembly and the FAA has determined that the new actions would terminate the requirements of AD 2025-06-51. This AD requires installing the modification to the aft movable ballast box door assembly. The FAA is issuing this AD to address the unsafe condition on these products.

Aft movable ballast box door modification required to prevent ballast weight escape and tail-rotor strike; supersedes Emergency AD 2025-06-51.

The FAA is adopting a new airworthiness directive (AD) for certain Airbus Helicopters Deutschland GmbH (AHD) Model MBB-BK 117 D-3 helicopters. This AD is prompted by reports of momentary direct current (DC) power interruption in flight of both essential busses. This AD requires revising the existing rotorcraft flight manual (RFM) to incorporate an emergency and malfunction procedure. The FAA is issuing this AD to address the unsafe condition on these products.

The FAA is adopting a new airworthiness directive (AD) for all Airbus Helicopters Deutschland GmbH Model EC135P1, EC135P2, EC135P2+, EC135P3, EC135T1, EC135T2, EC135T2+, EC135T3, EC635T2+, MBB-BK 117 C-2, MBB-BK 117 D-2, and MBB-BK 117 D-3 helicopters. This AD was prompted by a review of design data and the determination for recalculation of accumulated hoist boom cycles (cycles) and repetitive inspections. This AD requires determining the total cycles of certain hoist boom assemblies, inspecting those hoist boom assemblies, and depending on the results, taking corrective action. This AD also prohibits installing those hoist boom assemblies unless certain requirements are met. The FAA is issuing this AD to address the unsafe condition on these products.

The FAA is adopting a new airworthiness directive (AD) for certain MD Helicopters, LLC, Model 369 (Army YOH-6A), 369A (Army OH- 6A), 369D, 369E, 369F, 369FF, 369H, 369HE, 369HM, 369HS, 500N, and 600N helicopters. This AD was prompted by multiple reports of cracked tail rotor (T/R) pedal support brackets. This AD requires repetitively inspecting certain part-numbered T/R pedal support brackets and depending on the results, replacing the T/R pedal support bracket or refinishing any exposed areas. This AD also prohibits installing certain part-numbered T/R pedal support brackets. The FAA is issuing this AD to address the unsafe condition on these products.

The FAA is adopting a new airworthiness directive (AD) for all Airbus Helicopters Model EC 130 B4 and EC 130 T2 helicopters. This AD was prompted by a report of heavy damage on the fenestron due to the loss of the tail rotor (TR) blade, which broke at the TR hub tension- torsion bar (tension-torsion bar). This AD requires inspecting the tension-torsion bar and, depending on the inspection results, replacing the part with a serviceable part. This AD also prohibits performing maintenance using certain maintenance manuals. The FAA is issuing this AD to address the unsafe condition on these products.

EASA AD 2025-0199 — applicable to Leonardo AW109, Leonardo AW119