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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

2024-04-02

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

2022-19-12

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

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

2021-04-12

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

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

2014-28478

final rule

Airworthiness Directives; Robinson Helicopter Company Helicopters

Unsafe Condition: Debonding of the blade skin, which could result in blade failure and subsequent loss of control of the helicopter.

Effective: Jan 9, 2015 Category: aircraft Compliance: Within five years of the effective date.

Why matched: Airworthiness Directives; Robinson Helicopter Company Helicopters

2014-23-16

final rule

Airworthiness Directives; Robinson Helicopter Company Helicopters

Unsafe Condition: Debonding of the blade skin could result in blade failure and subsequent loss of control of the helicopter.

Effective: Jan 9, 2015 Category: aircraft Compliance: within five years of the effective date

Why matched: Airworthiness Directives; Robinson Helicopter Company Helicopters

2013-19-06

final rule

Airworthiness Directives; Robinson Helicopter Company (Robinson)

Unsafe Condition: Inadvertent closing of the fuel shut-off valve, which could result in loss of fuel to the engine and loss of engine power from which a safe landing may not be possible.

Effective: Nov 5, 2013 Category: engine Compliance: Within 3 years

Why matched: Airworthiness Directives; Robinson Helicopter Company (Robinson)

2013-05-15

final rule

Airworthiness Directives; Robinson Helicopter Company Helicopters

Unsafe Condition: Binding of the needle within the float inflation valve assembly, which has resulted in the emergency floats failing to inflate.

Effective: Apr 30, 2013 Category: aircraft Compliance: Within 1 year or 500 hours TIS, whichever occurs first.

Why matched: Airworthiness Directives; Robinson Helicopter Company Helicopters

2011-12-10

final rule

Airworthiness Directives; Robinson Helicopter Company Helicopters

Unsafe Condition: Bare metal in the area of the skin-to-spar bond line.

Effective: Mar 5, 2012 Category: aircraft Compliance: Before further flight.

Why matched: Airworthiness Directives; Robinson Helicopter Company Helicopters

2010-24-03

final rule

Airworthiness Directives; Robinson Helicopter Company (Robinson) Model R22, R22 Alpha, R22 Beta, and R22 Mariner Helicopters, and Model R44, and R44 II Helicopters

Unsafe Condition: Tail rotor (T/R) control pedal bearing block support (support) breaking, which can bind the T/R control pedals, resulting in a reduction of yaw control and subsequent loss of control of the helicop...

Effective: Dec 29, 2010 Category: aircraft Compliance: Within 100 hours total time-in-service (TIS)

Why matched: Airworthiness Directives; Robinson Helicopter Company (Robinson) Model R22, R22 Alpha, R22 Beta, and R22 Mariner Helicopters, and Model R44, and R44 II Helicopters

2007-26-12

final rule

Airworthiness Directives; Robinson Helicopter Company Models R22, R22 Alpha, R22 Beta, R22 Mariner, R44 and R44 II Helicopters

Unsafe Condition: Skin separation along the leading edge of blade skin aft of the skin-to-spar bond line and in the tip cap area, which can lead to blade debond and subsequent blade failure.

Effective: Jan 18, 2008 Category: aircraft Compliance: Before further flight for detected issues; before each flight for ongoing checks.

Why matched: Airworthiness Directives; Robinson Helicopter Company Models R22, R22 Alpha, R22 Beta, R22 Mariner, R44 and R44 II Helicopters

Technical illustration of a riveted aircraft structural panel and frame
Problem area Airframe structure

2007-11-01

final rule

Airworthiness Directives; Robinson Helicopter Company Model R44 and R44 II Helicopters

Unsafe Condition: Cracking in the buckle assembly stainless support strap and failure of a seat belt.

Effective: Jun 27, 2007 Category: aircraft Compliance: Within 100 hours time-in-service, unless accomplished previously.

Why matched: Airworthiness Directives; Robinson Helicopter Company Model R44 and R44 II Helicopters