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2026-17-51

final rule

Airworthiness Directives; Bell Textron Canada Limited Helicopters

Unsafe Condition: in-flight fatigue failure of a tail rotor pitch horn

Effective: Sep 14, 2026 Category: aircraft

Why matched: Airworthiness Directives; Bell Textron Canada Limited Helicopters

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

2026-16-02

final rule

Airworthiness Directives; Bell Textron Canada Limited Helicopters

Unsafe Condition: The quality escape in the production installation of a washer on the tail rotor pitch link assembly could lead to improper installation, potentially causing tail rotor pitch link failure.

Effective: Sep 10, 2026 Category: aircraft

Why matched: Airworthiness Directives; Bell Textron Canada Limited Helicopters

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

2026-15-06 Recurring

final rule

Airworthiness Directives; Bell Textron Canada Limited Helicopters

Unsafe Condition: Cracks in the vertical stabilizer top end cap assembly.

Effective: Sep 3, 2026 Category: aircraft

Why matched: Airworthiness Directives; Bell Textron Canada Limited Helicopters

2026-14-07 Recurring

final rule

Airworthiness Directives; Bell Textron Canada Limited Helicopters

Unsafe Condition: Fatigue cracking in the pilot cyclic stick tube assembly.

Effective: Aug 21, 2026 Category: aircraft

Why matched: Airworthiness Directives; Bell Textron Canada Limited Helicopters

2026-14-10

final rule

Airworthiness Directives; Textron Aviation Inc. Airplanes

Unsafe Condition: The manufacturer's revision of the aircraft maintenance manual (AMM) to add a detailed inspection for the horizontal stabilizer spar and change the airplane serial effectivity for the vertical stab...

Effective: Aug 18, 2026 Category: aircraft

Why matched: Airworthiness Directives; Textron Aviation Inc. Airplanes

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

2026-13-12

final rule

Airworthiness Directives; Bell Textron Canada Limited Helicopters

Unsafe Condition: The unsafe condition involves exceeding life limits on the main rotor (M/R) clevises, universal bearings, and universal to pitch link bolts, which could result in failure of these components and su...

Effective: Aug 11, 2026 Category: aircraft

Why matched: Airworthiness Directives; Bell Textron Canada Limited Helicopters

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

2026-15-05

final rule

Airworthiness Directives; Textron Aviation Inc. Airplanes

Unsafe Condition: Cracks in the wing spar or wing supporting structure may occur if the inspection intervals are not revised as specified.

Effective: Aug 10, 2026 Category: aircraft

Why matched: Airworthiness Directives; Textron Aviation Inc. Airplanes

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

2026-10-04

final rule

Airworthiness Directives; Bell Textron Canada Limited Helicopters

Unsafe Condition: Chafing can occur at various locations on the electrical harnesses located in the aircraft instrument panel area.

Effective: Jun 25, 2026 Category: aircraft

Why matched: Airworthiness Directives; Bell Textron Canada Limited Helicopters

2026-06-02

final rule

Airworthiness Directives; Bell Textron Canada Limited Helicopters

Unsafe Condition: Incorrectly installed lockwire on the stability and control augmentation system (SCAS) actuator jam nut could allow the actuator jam nut to loosen.

Effective: Apr 24, 2026 Category: aircraft Compliance: Within 50 flight hours after the effective date of this AD.

Why matched: Airworthiness Directives; Bell Textron Canada Limited Helicopters

2026-05-51

final rule

Airworthiness Directives; Bell Textron Canada Limited Helicopters

Unsafe Condition: 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.

Effective: Apr 16, 2026 Category: aircraft Compliance: Before further flight

Why matched: Airworthiness Directives; Bell Textron Canada Limited Helicopters

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

2026-03-06

final rule

Airworthiness Directives; Textron Aviation, Inc. (Type Certificate Previously Held by Cessna Aircraft Company) Airplanes

Unsafe Condition: Undetected cracks in the engine mount and vertical stabilizer front and rear spar caps could result in reduced structural integrity and consequent reduced controllability of the airplane.

Effective: Mar 13, 2026 Category: aircraft Compliance: Within 150 hours time-in-service (TIS) or 12 months after the effective date of this AD, whicheve...

Why matched: Airworthiness Directives; Textron Aviation, Inc. (Type Certificate Previously Held by Cessna Aircraft Company) Airplanes

Technical illustration of an aircraft turbine engine assembly
Problem area Engine

2025-25-01 Recurring

final rule

Airworthiness Directives; Bell Textron Canada Limited Helicopters

Unsafe Condition: Cracked transmission oil check valve (part number 209-062-520-001) caused by incorrect torque application during assembly, potentially leading to degradation or loss of lubrication to the transmiss...

Effective: Jan 16, 2026 Category: aircraft Compliance: Before further flight

Why matched: Airworthiness Directives; Bell Textron Canada Limited Helicopters

2025-23-08 Recurring

final rule

Airworthiness Directives; Textron Aviation Inc. (Type Certificate Previously Held by Cessna Aircraft Company) Airplanes

Unsafe Condition: Damaged intercooler inlet and outlet hoses could result in a loss of manifold pressure and consequent loss of engine power, potentially leading to a forced landing, damage to the airplane, and inju...

Effective: Dec 2, 2025 Category: aircraft Compliance: Before further flight or within 50 flight hours of operation.

Why matched: Airworthiness Directives; Textron Aviation Inc. (Type Certificate Previously Held by Cessna Aircraft Company) Airplanes

2025-22-03

final rule

Airworthiness Directives; Bell Textron Canada Limited Helicopters

Unsafe Condition: Deformation and improper pin engagement in the knuckles of the door hinge on the aft movable ballast box assembly, which could allow the ballast weights to escape the ballast box and strike the tai...

Effective: Nov 20, 2025 Category: aircraft Compliance: Before further flight

Why matched: Airworthiness Directives; Bell Textron Canada Limited Helicopters

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

2025-20-11

final rule

Airworthiness Directives; Textron Aviation Inc. Airplanes

Unsafe Condition: Incorrect rivets used during installation of the rudder control pushrod do not meet the strength requirements of the type design. Failure of a rudder control pushrod may result in a rudder jam or l...

Effective: Oct 17, 2025 Category: aircraft Compliance: Within 20 hours time-in-service or 30 days, whichever occurs first.

Why matched: Airworthiness Directives; Textron Aviation Inc. Airplanes

Technical illustration of an aircraft flight control surface and actuator
Problem area Flight controls

2025-18-10

final rule

Airworthiness Directives; Bell Textron Canada Limited Helicopters

Unsafe Condition: A cracked mounting bracket on the oil cooler fan assembly housing can lead to failure of the drive shaft, loss of the tail rotor drive, and consequent loss of control of the helicopter.

Effective: Sep 25, 2025 Category: aircraft Compliance: Within 25 hours time-in-service or 30 days, whichever occurs first.

Why matched: Airworthiness Directives; Bell Textron Canada Limited Helicopters

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

2025-11-09 Recurring

final rule

Airworthiness Directives; Textron Aviation, Inc. (Type Certificate Previously Held by Cessna Aircraft Company) Airplanes

Unsafe Condition: mis-wired fire extinguishing bottles

Effective: Jul 11, 2025 Category: aircraft Compliance: Within 50 flight hours

Why matched: Airworthiness Directives; Textron Aviation, Inc. (Type Certificate Previously Held by Cessna Aircraft Company) Airplanes

2025-13-01

final rule

Airworthiness Directives; Bell Textron Canada Limited Helicopters

Unsafe Condition: Expandable blade bolts installed on the main rotor blade may not have received the correct heat treatment, which could result in stress corrosion cracking and failure of the main rotor blade assemb...

Effective: Jul 8, 2025 Category: aircraft Compliance: Within 30 hours time-in-service or 30 days, whichever occurs first.

Why matched: Airworthiness Directives; Bell Textron Canada Limited Helicopters

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

2025-07-01

final rule

Airworthiness Directives; Thommen Aircraft Equipment AG Digital Air Data Computers

Unsafe Condition: Occurrences of AC32 Digital ADCs that stopped functioning due to the power module failing at temperatures below -20 degrees Celsius.

Effective: May 15, 2025 Category: aircraft Compliance: Within 12 months after the effective date of this AD

Why matched: Airworthiness Directives; Thommen Aircraft Equipment AG Digital Air Data Computers

2025-09-01 Recurring

final rule

Airworthiness Directives; Bell Textron Canada Limited Helicopters

Unsafe Condition: Possible chafing in certain locations between the basic and supplemental helicopter wiring and the structure, which could lead to a short to ground and command the engine to idle, resulting in loss...

Effective: May 13, 2025 Category: aircraft Compliance: Within 50 flight hours or 30 days, whichever occurs first.

Why matched: Airworthiness Directives; Bell Textron Canada Limited Helicopters

Technical illustration of an aircraft electrical generator and wiring assembly
Problem area Electrical system

2025-09-03 Recurring

final rule

Airworthiness Directives; Bell Textron Canada Limited Helicopters

Unsafe Condition: Crack initiation at the main rotor (M/R) clevis neck or threaded area, leading to failure of the M/R pitch link, which could result in loss of control of the helicopter.

Effective: May 13, 2025 Category: aircraft Compliance: Within 12 months of effective date

Why matched: Airworthiness Directives; Bell Textron Canada Limited Helicopters

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

2025-06-51

final rule

Airworthiness Directives; Bell Textron Canada Limited Helicopters

Unsafe Condition: Deformation and/or improper pin engagement in the knuckles of the door hinge on the aft movable ballast box assembly, part number SLS-706-201-007, could lead to ballast weights escaping the ballast...

Effective: Apr 25, 2025 Category: aircraft Compliance: Before further flight

Why matched: Airworthiness Directives; Bell Textron Canada Limited Helicopters

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

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

2024-16-19 Recurring

final rule

Airworthiness Directives; Bell Textron Inc. Helicopters

Unsafe Condition: Cracked tail boom attachment barrel nuts (barrel nuts) due to corrosion damage, high time in service, or hydrogen embrittlement, which can cause loss of torque on the associated bolt and subsequent...

Effective: Nov 8, 2024 Category: aircraft Compliance: Within 5,000 flight hours or 5 years, depending on the specific helicopter model and serial number.

Why matched: Airworthiness Directives; Bell Textron Inc. Helicopters

2024-17-02

final rule

Airworthiness Directives; Bell Textron Inc. Helicopters

Unsafe Condition: Failure of the tail boom attachment structure, including fatigue cracking of tail boom attachment fittings, cap angles, longerons, and bolts.

Effective: Nov 8, 2024 Category: aircraft Compliance: Before further flight

Why matched: Airworthiness Directives; Bell Textron Inc. Helicopters