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2025-11-07 Recurring

final rule

Airworthiness Directives; Robinson Helicopter Company Helicopters

Unsafe Condition: Fatigue cracking on the clutch shaft forward yoke (yoke) on the main rotor (M/R) drive, which could result in loss of M/R drive and consequent loss of control of the helicopter.

Effective: Jul 11, 2025 Category: aircraft Compliance: Within 100 hours time-in-service (TIS) after the effective date of this AD.

Why matched: Airworthiness Directives; Robinson Helicopter Company Helicopters

Technical illustration of a helicopter rotor hub assembly
Problem area Rotor system

2024-23-01

final rule

Airworthiness Directives; Robinson Helicopter Company

Unsafe Condition: Failed rivets attaching the clutch actuator bracket to the fan scroll housing, caused by excessive vibration of the fan scroll housing due to the design of the fan scroll housing, including the qua...

Effective: Jan 7, 2025 Category: aircraft Compliance: Within 50 flight hours

Why matched: Airworthiness Directives; Robinson Helicopter Company

2024-20-07 Recurring

final rule

Airworthiness Directives; Various Helicopters

Unsafe Condition: Difficulty pulling the emergency float kit activation handle installed on the pilot cyclic, and deficiencies in the installation of the cables on the emergency float kits.

Effective: Dec 5, 2024 Category: aircraft Compliance: Within 50 flight hours

Why matched: Airworthiness Directives; Various Helicopters

2024-20-03

final rule

Airworthiness Directives; Robinson Helicopter Company Helicopters

Unsafe Condition: Engine governor failures caused by water intrusion inside the governor controller, leading to loss of engine speed governing such as an engine overspeed or underspeed condition, and subsequent unex...

Effective: Nov 29, 2024 Category: engine Compliance: Within 90 days after the effective date of this AD (November 29, 2024).

Why matched: Airworthiness Directives; Robinson Helicopter Company Helicopters

2024-19-11

final rule

Airworthiness Directives; Robinson Helicopter Company Helicopters

Unsafe Condition: A fractured clutch shaft forward yoke on the main rotor drive due to fatigue cracking.

Effective: Oct 31, 2024 Category: aircraft Compliance: Within 50 flight hours

Why matched: Airworthiness Directives; Robinson Helicopter Company Helicopters

Technical illustration of a helicopter rotor hub assembly
Problem area Rotor system

2024-19-17

final rule

Airworthiness Directives; Bell Textron Inc. and Various Restricted Category Helicopters

Unsafe Condition: The failure of a tension torsion (TT) strap, which can result in loss of a main rotor blade and subsequent loss of control of the helicopter.

Effective: Oct 11, 2024 Category: aircraft Compliance: Within 50 hours time-in-service (TIS)

Why matched: Airworthiness Directives; Bell Textron Inc. and Various Restricted Category Helicopters

Technical illustration of a helicopter rotor hub assembly
Problem area Rotor system

2024-04-02

final rule

Airworthiness Directives; Robinson Helicopter Company Helicopters

Unsafe Condition: TRB tip caps coming loose due to corrosion at the bond on Robinson Helicopter Company Model R44 helicopters, and TRBs that have corroded to an unserviceable condition, including severe leading edge...

Effective: Apr 2, 2024 Category: aircraft Compliance: Within 10 months

Why matched: Airworthiness Directives; Robinson Helicopter Company Helicopters

2023-11-07

final rule

Airworthiness Directives; Various Helicopters

Unsafe Condition: unsafe condition on these products.

Effective: Jun 22, 2023 Category: aircraft Compliance: Before further flight

Why matched: Airworthiness Directives; Various Helicopters

2022-20-14 Recurring

final rule

Airworthiness Directives; Bell Textron Inc., Helicopters and Various Restricted Category Helicopters

Unsafe Condition: Stress corrosion cracking of the main transmission support case lateral mounts.

Effective: Dec 27, 2022 Category: aircraft Compliance: Within 300 hours time-in-service (TIS) after accumulating 6,000 or more total hours TIS, or befor...

Why matched: Airworthiness Directives; Bell Textron Inc., Helicopters and Various Restricted Category Helicopters

2022-22-12

final rule

Airworthiness Directives; Bell Textron Inc., Erickson 214 Holdings, LLC, Leonardo S.p.a., and Various Restricted Category Helicopters

Unsafe Condition: Reports of two in-service failures of forward crosstubes due to fatigue damage, and the issuance of newly established life limits.

Effective: Nov 22, 2022 Category: aircraft Compliance: Before further flight

Why matched: Airworthiness Directives; Bell Textron Inc., Erickson 214 Holdings, LLC, Leonardo S.p.a., and Various Restricted Category Helicopters

2022-21-11 Recurring

final rule

Airworthiness Directives; Bell Textron Inc. Helicopters and Various Restricted Category Helicopters

Unsafe Condition: Cracked main rotor blades (MRBs) with chordwise cracks originating from the extreme trailing edge between blade station 190 and 210.

Effective: Nov 16, 2022 Category: aircraft Compliance: Before the first flight of each day, and at 25-hour intervals, or within 12 months of effective d...

Why matched: Airworthiness Directives; Bell Textron Inc. Helicopters and Various Restricted Category Helicopters

Technical illustration of a helicopter rotor hub assembly
Problem area Rotor system

2022-19-12

final rule

Airworthiness Directives; Robinson Helicopter Company Helicopters

Unsafe Condition: Reports of cracked blades. The FAA is issuing this AD to detect and prevent cracks in the affected blades. The unsafe condition, if not addressed, could result in reduced controllability and subseq...

Effective: Oct 20, 2022 Category: aircraft Compliance: Before further flight after the effective date of this AD

Why matched: Airworthiness Directives; Robinson Helicopter Company Helicopters

2022-12-08

final rule

Airworthiness Directives; Robinson Helicopter Company Helicopters

Unsafe Condition: Intermittent or abnormal operation of the engine revolutions per minute (RPM) governor may result in engine overspeed or underspeed conditions during flight.

Effective: Jun 29, 2022 Category: engine Compliance: Within 15 hours time-in-service or 15 days, whichever occurs first.

Why matched: Airworthiness Directives; Robinson Helicopter Company Helicopters

2022-05-10 Recurring

final rule

Airworthiness Directives; Goodrich Externally-Mounted Hoist Assemblies

Unsafe Condition: The overload clutch in the Goodrich externally-mounted hoist assemblies can fail, leading to in-flight loss of the hoist load, possibly resulting in injury to persons on the ground or in a hoisting...

Effective: Apr 20, 2022 Category: aircraft Compliance: Within 12 months of effective date

Why matched: Airworthiness Directives; Goodrich Externally-Mounted Hoist Assemblies

2022-06-05

final rule

Airworthiness Directives; Various Restricted Category Helicopters

Unsafe Condition: Failure of a pin could result in the main rotor blade detaching from the helicopter and subsequent loss of control of the helicopter.

Effective: Mar 16, 2022 Category: aircraft Compliance: Before further flight

Why matched: Airworthiness Directives; Various Restricted Category Helicopters

Technical illustration of a helicopter rotor hub assembly
Problem area Rotor system

2021-19-08

final rule

Airworthiness Directives; Robinson Helicopter Company Helicopters

Unsafe Condition: The FAA is issuing this AD to address the unsafe condition on these products. The condition, if not addressed, could result in reduced controllability and subsequent loss of control of the helicopter.

Effective: Sep 22, 2021 Category: aircraft Compliance: Before further flight and within three months after the effective date of this AD

Why matched: Airworthiness Directives; Robinson Helicopter Company Helicopters

2021-15-14 Recurring

final rule

Airworthiness Directives; Various Restricted Category Helicopters

Unsafe Condition: Failure of the tail boom attach structure, including the bolts, resulting in separation of the tail boom from the helicopter and subsequent loss of control of the helicopter.

Effective: Aug 30, 2021 Category: aircraft Compliance: Before further flight

Why matched: Airworthiness Directives; Various Restricted Category Helicopters

2021-04-12

final rule

Airworthiness Directives; Robinson Helicopter Company Helicopters

Unsafe Condition: Reports of tail rotor (T/R) drive shaft forward hanger bearing failures due to the bearing spinning at a speed that caused excessive heating of the bearing during operation and led to the breakdown...

Effective: Apr 12, 2021 Category: aircraft Compliance: Within 100 hours time-in-service (TIS)

Why matched: Airworthiness Directives; Robinson Helicopter Company Helicopters

Technical illustration of a helicopter rotor hub assembly
Problem area Rotor system

2020-18-08

final rule

Airworthiness Directives; Robinson Helicopter Company

Unsafe Condition: Separation between the outer and inner layers of the orange silicone hose P/N A785-31, which can result in blockage of air flow to the engine, engine stoppage, and subsequent loss of control of the...

Effective: Aug 27, 2020 Category: engine Compliance: Within 10 hours TIS after the effective date of this AD, or within 100 hours TIS or at each annua...

Why matched: Airworthiness Directives; Robinson Helicopter Company

2020-08-10

final rule

Airworthiness Directives; Robinson Helicopter Company Helicopters

Unsafe Condition: a crack in a tail rotor blade. This condition could result in the loss of the tail rotor and subsequent loss of control of the helicopter.

Effective: May 22, 2020 Category: aircraft Compliance: Within 10 flight hours or by June 30, 2012, whichever occurs first

Why matched: Airworthiness Directives; Robinson Helicopter Company Helicopters

Technical illustration of a helicopter rotor hub assembly
Problem area Rotor system

2020-05-11 Recurring

final rule

Airworthiness Directives; Robinson Helicopter Company Helicopters

Unsafe Condition: Failure of the pump fitting causes uncontrolled discharge of the spray liquid exiting the system pump. The pump output port is in direct alignment with the engine air intake, allowing the engine to...

Effective: Apr 16, 2020 Category: aircraft Compliance: Before further flight, and thereafter before each flight

Why matched: Airworthiness Directives; Robinson Helicopter Company Helicopters

2019-12-18

final rule

Airworthiness Directives; Robinson Helicopter Company Helicopters

Unsafe Condition: Separation between the outer and inner layers of the engine air induction hose (hose) part number (P/N) A785-31, which could result in blockage of air flow to the engine, engine stoppage, and subse...

Effective: Jul 5, 2019 Category: engine Compliance: Within 10 hours TIS

Why matched: Airworthiness Directives; Robinson Helicopter Company Helicopters

2019-07-02

final rule

Airworthiness Directives; Robinson Helicopter Company Helicopters

Unsafe Condition: broken baffle inside an oil tank, which could result in loss of oil pressure and oil flow to the engine, leading to engine failure and subsequent forced landing of the helicopter.

Effective: May 17, 2019 Category: aircraft Compliance: Within 100 hours time-in-service

Why matched: Airworthiness Directives; Robinson Helicopter Company Helicopters

Technical illustration of an aircraft turbine engine assembly
Problem area Engine

2018-02-07

final rule

Airworthiness Directives; Various Restricted Category Helicopters

Unsafe Condition: A crack, corrosion, an edge void, loose or damaged adhesive squeeze-out, or an edge delamination in the grip plate and doublers at the blade retention bolt hole of a main rotor blade could lead to ...

Effective: Feb 1, 2018 Category: aircraft Compliance: Within 25 hours time-in-service (TIS) or 2 weeks, whichever occurs first, and thereafter at inter...

Why matched: Airworthiness Directives; Various Restricted Category Helicopters

Technical illustration of a helicopter rotor hub assembly
Problem area Rotor system

2016-26-04

final rule

Airworthiness Directives; Robinson Helicopter Company Helicopters

Unsafe Condition: A fatigue crack on the main rotor blade (MRB), which could result in failure of the MRB and loss of helicopter control.

Effective: Feb 8, 2017 Category: aircraft Compliance: Within 100 hours time-in-service or at the next annual inspection, whichever occurs first.

Why matched: Airworthiness Directives; Robinson Helicopter Company Helicopters

Technical illustration of a helicopter rotor hub assembly
Problem area Rotor system