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2025-17-11 Recurring

final rule

Airworthiness Directives; MD Helicopters, LLC

Unsafe Condition: unsafe condition on these products.

Effective: Oct 10, 2025 Category: aircraft

Why matched: Airworthiness Directives; MD Helicopters, LLC

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2024-23-06 Recurring

final rule

Airworthiness Directives; MD Helicopters, LLC, Helicopters

Unsafe Condition: unsafe condition on these products.

Effective: Dec 24, 2024 Category: aircraft

Why matched: Airworthiness Directives; MD Helicopters, LLC, Helicopters

View Details View AD (PDF) ↗

2021-22-11 Recurring

final rule

Airworthiness Directives; MD Helicopters Inc. (MDHI) Helicopters

Unsafe Condition: unsafe condition on these products.

Effective: Jan 10, 2022 Category: aircraft

Why matched: Airworthiness Directives; MD Helicopters Inc. (MDHI) Helicopters

View Details View AD (PDF) ↗

2020-18-20

final rule

Airworthiness Directives; MD Helicopters Inc. (MDHI), Helicopters

Unsafe Condition: unsafe condition on these products.

Effective: Oct 28, 2020 Category: aircraft

Why matched: Airworthiness Directives; MD Helicopters Inc. (MDHI), Helicopters

View Details View AD (PDF) ↗

2020-11-07

final rule

Airworthiness Directives; MD Helicopter Inc., Helicopters

Unsafe Condition: unsafe condition on these products.

Effective: Jun 30, 2020 Category: aircraft

Why matched: Airworthiness Directives; MD Helicopter Inc., Helicopters

View Details View AD (PDF) ↗

2020-06-11

final rule

Airworthiness Directives; MD Helicopters Inc. Helicopters

Unsafe Condition: unsafe condition on these products.

Effective: Apr 28, 2020 Category: aircraft

Why matched: Airworthiness Directives; MD Helicopters Inc. Helicopters

View Details View AD (PDF) ↗

2019-05-04

final rule

Airworthiness Directives; MD Helicopters, Inc. (MDHI), Helicopters

Unsafe Condition: unsafe condition on these helicopters.

Effective: Apr 17, 2019 Category: aircraft

Why matched: Airworthiness Directives; MD Helicopters, Inc. (MDHI), Helicopters

View Details View AD (PDF) ↗

2016-05-09

final rule

Airworthiness Directives; MD Helicopters, Inc. (MDHI) Helicopters

Unsafe Condition: Fuel Quantity Indicating System

Effective: Apr 15, 2016 Category: aircraft

Why matched: Airworthiness Directives; MD Helicopters, Inc. (MDHI) Helicopters

View Details Official Source ↗

2016-05-09

final rule

Airworthiness Directives; MD Helicopters, Inc. (MDHI) Helicopters

Unsafe Condition: Fuel Quantity Indicating System

Effective: Apr 15, 2016 Category: aircraft

Why matched: Airworthiness Directives; MD Helicopters, Inc. (MDHI) Helicopters

View Details Official Source ↗

2016-05-09

final rule

Airworthiness Directives; MD Helicopters, Inc. (MDHI) Helicopters

Unsafe Condition: Fuel Quantity Indicating System

Effective: Apr 15, 2016 Category: aircraft

Why matched: Airworthiness Directives; MD Helicopters, Inc. (MDHI) Helicopters

View Details Official Source ↗

2016-05-09

final rule

Airworthiness Directives; MD Helicopters, Inc. (MDHI) Helicopters

Unsafe Condition: Fuel Quantity Indicating System

Effective: Apr 15, 2016 Category: aircraft

Why matched: Airworthiness Directives; MD Helicopters, Inc. (MDHI) Helicopters

View Details Official Source ↗

2016-05-09

final rule

Airworthiness Directives; MD Helicopters, Inc. (MDHI) Helicopters

Unsafe Condition: Fuel Quantity Indicating System

Effective: Apr 15, 2016 Category: aircraft

Why matched: Airworthiness Directives; MD Helicopters, Inc. (MDHI) Helicopters

View Details Official Source ↗

2016-05-09

final rule

Airworthiness Directives; MD Helicopters, Inc. (MDHI) Helicopters

Unsafe Condition: Fuel Quantity Indicating System

Effective: Apr 15, 2016 Category: aircraft

Why matched: Airworthiness Directives; MD Helicopters, Inc. (MDHI) Helicopters

View Details Official Source ↗

2016-05-09

final rule

Airworthiness Directives; MD Helicopters, Inc. (MDHI) Helicopters

Unsafe Condition: Fuel Quantity Indicating System

Effective: Apr 15, 2016 Category: aircraft

Why matched: Airworthiness Directives; MD Helicopters, Inc. (MDHI) Helicopters

View Details Official Source ↗

2016-05-09

final rule

Airworthiness Directives; MD Helicopters, Inc. (MDHI) Helicopters

Unsafe Condition: Fuel Quantity Indicating System

Effective: Apr 15, 2016 Category: aircraft

Why matched: Airworthiness Directives; MD Helicopters, Inc. (MDHI) Helicopters

View Details Official Source ↗

2016-05-09

final rule

Airworthiness Directives; MD Helicopters, Inc. (MDHI) Helicopters

Unsafe Condition: Fuel Quantity Indicating System

Effective: Apr 15, 2016 Category: aircraft

Why matched: Airworthiness Directives; MD Helicopters, Inc. (MDHI) Helicopters

View Details Official Source ↗

2016-05-09

final rule

Airworthiness Directives; MD Helicopters, Inc. (MDHI) Helicopters

Unsafe Condition: Fuel Quantity Indicating System

Effective: Apr 15, 2016 Category: aircraft

Why matched: Airworthiness Directives; MD Helicopters, Inc. (MDHI) Helicopters

View Details Official Source ↗

2016-04982

final rule

Airworthiness Directives; MD Helicopters, Inc. (MDHI) Helicopters

Unsafe Condition: We are adopting a new airworthiness directive (AD) for certain MDHI Model 369A (Army OH-6A), 369H, 369HE, 369HM, 369HS, 369D, 369E, 369F, 369FF, and 500N helicopters. This AD requires inspecting th...

Effective: Apr 15, 2016 Category: aircraft

Why matched: Airworthiness Directives; MD Helicopters, Inc. (MDHI) Helicopters

View Details View AD (PDF) ↗

2016-04-15

final rule

Airworthiness Directives; MD Helicopters Inc., Helicopters

Unsafe Condition: could result in failure of a pin, failure of a main rotor blade, and subsequent loss of control of the helicopter.

Effective: Mar 31, 2016 Category: aircraft

Why matched: Airworthiness Directives; MD Helicopters Inc., Helicopters

View Details View AD (PDF) ↗

2016-01-19

final rule

Airworthiness Directives; MD Helicopters Inc.

Unsafe Condition: We are adopting a new airworthiness directive (AD) for MD Helicopters Inc. (MDHI) Model 500N and 600N helicopters with certain rotating cone assemblies installed. This AD requires establishing a li...

Effective: Feb 25, 2016 Category: aircraft

Why matched: Airworthiness Directives; MD Helicopters Inc.

View Details View AD (PDF) ↗

2014-16-01

final rule

Airworthiness Directives; MD Helicopters, Inc., Helicopters

Unsafe Condition: We are adopting a new airworthiness directive (AD) for MD Helicopters, Inc. (MDHI), Model MD900 helicopters. This AD requires an eddy current inspection of the main rotor upper hub assembly (upper ...

Effective: Aug 20, 2014 Category: aircraft Compliance: before further flight

Why matched: Airworthiness Directives; MD Helicopters, Inc., Helicopters

View Details View AD (PDF) ↗

2013-19-24

final rule

Airworthiness Directives; MD Helicopters, Inc., Helicopters

Unsafe Condition: We are superseding Airworthiness Directive (AD) 2003-08-51 for MD Helicopters, Inc. (MDHI), Model 369A, 369D, 369E, 369H, 369HE, 369HM, 369HS, 369F and 369FF helicopters with certain MDHI or Helico...

Effective: Dec 5, 2013 Category: aircraft

Why matched: Airworthiness Directives; MD Helicopters, Inc., Helicopters

View Details View AD (PDF) ↗

2013-20-16 Recurring

final rule

Airworthiness Directives; MD Helicopters, Inc. (MDHI) Helicopters

Unsafe Condition: which could lead to loss of MRB structural integrity and subsequent loss of control of the helicopter.

Effective: Dec 5, 2013 Category: aircraft

Why matched: Airworthiness Directives; MD Helicopters, Inc. (MDHI) Helicopters

View Details View AD (PDF) ↗

2013-05-16

final rule

Airworthiness Directives; Hughes Helicopters, Inc., and McDonnell Douglas Helicopter Systems (Type Certificate Is Currently Held by MD Helicopters, Inc.) Helicopters

Unsafe Condition: We are adopting a new airworthiness directive (AD) for MD Helicopters, Inc. (MDHI) Model 369D, 369E, 369F, and 369FF helicopters with certain serial-numbered tailboom assemblies. This AD requires m...

Effective: Apr 30, 2013 Category: aircraft

Why matched: Airworthiness Directives; Hughes Helicopters, Inc., and McDonnell Douglas Helicopter Systems (Type Certificate Is Currently Held by MD Helicopters, Inc.) Helicopters

View Details View AD (PDF) ↗

2013-03-03

final rule

Airworthiness Directives; MD Helicopters, Inc., Helicopters

Unsafe Condition: We are adopting a new airworthiness directive (AD) for MD Helicopters, Inc. (MDHI) Model 500N, 600N and MD900 helicopters to require determining the cure date for each NOTAR fan blade tension- tors...

Effective: Mar 15, 2013 Category: aircraft

Why matched: Airworthiness Directives; MD Helicopters, Inc., Helicopters

View Details View AD (PDF) ↗