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2024-16-01 Recurring

final rule

Airworthiness Directives; Bell Textron Inc. (Type Certificate Previously Held by Bell Helicopter Textron, Inc.), Helicopters

Unsafe Condition: The unsafe condition is a fatigue crack in a tail boom attachment cap angle, which can lead to failure of the cap angle, loss of the tail boom, and subsequent loss control of the helicopter.

Effective: Sep 4, 2024 Category: aircraft Compliance: Within 25 flight hours for certain helicopters and 50 flight hours for certain other helicopters

Why matched: Airworthiness Directives; Bell Textron Inc. (Type Certificate Previously Held by Bell Helicopter Textron, Inc.), Helicopters

2020-02-11

final rule

Airworthiness Directives; Bell Helicopter Textron Inc. Helicopters

Unsafe Condition: Numerous failures of inverters due to an external connector that caused a short circuit inside inverter P/N 412-375-079-101 and components chafing because of variations in the assembly process and ...

Effective: Mar 17, 2020 Category: aircraft Compliance: Within 25 hours time-in-service (TIS)

Why matched: Airworthiness Directives; Bell Helicopter Textron Inc. Helicopters

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

2019-09-02

final rule

Airworthiness Directives; Bell Helicopter Textron, Inc. (Bell) Helicopters

Unsafe Condition: The engine oil check valves and fuel check valves may have a condition induced during assembly that can cause the valve body to crack, resulting in oil or fuel leakage. This condition could result ...

Effective: Jun 4, 2019 Category: aircraft Compliance: Within 25 hours time-in-service (TIS)

Why matched: Airworthiness Directives; Bell Helicopter Textron, Inc. (Bell) Helicopters

Technical illustration of an aircraft turbine engine assembly
Problem area Engine

2018-16-14

final rule

Airworthiness Directives; Bell Helicopter Textron Inc., Helicopters

Unsafe Condition: A crack on an EFS tube assembly could result in failure of the emergency floats to inflate during an emergency water landing.

Effective: Oct 4, 2018 Category: aircraft Compliance: Within 300 hours time-in-service

Why matched: Airworthiness Directives; Bell Helicopter Textron Inc., Helicopters

2018-17-01

final rule

Airworthiness Directives; Bell Helicopter Textron, Inc. (Bell) Helicopters

Unsafe Condition: The engine oil and fuel check valves may have a condition induced during assembly that can cause the valve body to crack, resulting in oil or fuel leakage. This condition could result in loss of lu...

Effective: Sep 5, 2018 Category: aircraft Compliance: Within 25 hours time-in-service (TIS)

Why matched: Airworthiness Directives; Bell Helicopter Textron, Inc. (Bell) Helicopters

Technical illustration of an aircraft turbine engine assembly
Problem area Engine

2018-02-08

final rule

Airworthiness Directives; Bell Helicopter Textron Helicopters

Unsafe Condition: A crack, corrosion, an edge void, loose or damaged adhesive squeeze-out, or an edge delamination in the M/R blade could lead to failure of the blade and subsequent loss of helicopter control.

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

Why matched: Airworthiness Directives; Bell Helicopter Textron Helicopters

2017-15-02

final rule

Airworthiness Directives; Bell Helicopter Textron, Inc. (Bell) Helicopters

Unsafe Condition: Check valves, part numbers 209-062-520-001 and 209-062-607-001, manufactured by Circor Aerospace and marked 'Circle Seal' between October 2011 and March 2015, may have a condition induced during as...

Effective: Aug 4, 2017 Category: aircraft Compliance: Within 25 hours time-in-service (TIS)

Why matched: Airworthiness Directives; Bell Helicopter Textron, Inc. (Bell) Helicopters

Technical illustration of an aircraft turbine engine assembly
Problem area Engine

2016-22-07

final rule

Airworthiness Directives; Bell Helicopter Textron

Unsafe Condition: A crack in a main rotor (M/R) blade, which could result in failure of an M/R blade and subsequent loss of helicopter control.

Effective: Nov 30, 2016 Category: aircraft Compliance: Within 25 hours time-in-service (TIS) or 2 weeks, whichever occurs first.

Why matched: Airworthiness Directives; Bell Helicopter Textron

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

2015-15-04

final rule

Airworthiness Directives; Bell Helicopter Textron, Inc.

Unsafe Condition: Installation of grip part number ASI-4011-121-113 on Bell Model 212 helicopters, which is not approved for this model, could result in grip failure, separation of the main rotor blade, and subseque...

Effective: Aug 7, 2015 Category: aircraft Compliance: Within 5 hours time-in-service (TIS)

Why matched: Airworthiness Directives; Bell Helicopter Textron, Inc.

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

2014-12-04 Recurring

final rule

Airworthiness Directives; Honeywell International Inc. Turboprop Engines

Unsafe Condition: Loss of the fuel control drive, leading to engine overspeed, overtorque, overtemperature, uncontained rotor failure, and asymmetric thrust in multi-engine airplanes.

Effective: Jul 22, 2015 Category: engine Compliance: Before further flight

Why matched: Airworthiness Directives; Bell Helicopter Textron, Inc. (BHTI) Helicopters

2014-12-01 Recurring

final rule

Airworthiness Directives; Bell Helicopter Textron, Inc. (Bell) Helicopters

Unsafe Condition: A bearing with incorrect seal material, which could fail under extreme temperature or environmental conditions, resulting in loss of tail rotor control and subsequent loss of control of the helicop...

Effective: Jul 14, 2014 Category: aircraft Compliance: Within 10 hours TIS for initial inspection; within 500 hours TIS or 6 months for replacement of d...

Why matched: Airworthiness Directives; Bell Helicopter Textron, Inc. (Bell) Helicopters

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

2014-03-11

final rule

Airworthiness Directives; Bell Helicopter Textron, Inc. (Bell) Helicopters

Unsafe Condition: An incorrectly machined body on the cable assembly could prevent the barrel assembly from fully engaging in the body cavity, leading to disengagement of the cable from the barrel, failure of the ta...

Effective: Mar 26, 2014 Category: aircraft Compliance: Within 25 hours time in service for initial inspection, before further flight if separation is de...

Why matched: Airworthiness Directives; Bell Helicopter Textron, Inc. (Bell) Helicopters

2013-22-21

final rule

Airworthiness Directives; Bell Helicopter Textron, Inc., Helicopters

Unsafe Condition: Incorrectly installed float inflation hoses, which could result in failure of the emergency floats to inflate fully during an emergency.

Effective: Dec 13, 2013 Category: aircraft Compliance: Within 45 hours time-in-service for initial inspections and corrections; within 6 months for hose...

Why matched: Airworthiness Directives; Bell Helicopter Textron, Inc., Helicopters

2013-20-18

final rule

Airworthiness Directives; Bell Helicopter Textron, Inc. (Bell) Helicopters

Unsafe Condition: fatigue cracking of a yoke, failure of the yoke, and subsequent loss of control of the helicopter.

Effective: Nov 29, 2013 Category: aircraft Compliance: Within 10 hours time-in-service (TIS)

Why matched: Airworthiness Directives; Bell Helicopter Textron, Inc. (Bell) Helicopters

2013-23099

final rule

Airworthiness Directives; Bell Helicopter Textron, Inc., Helicopters

Unsafe Condition: Failure of the pylon support spindle assembly (spindle) due to corrosion, nick, scratch, dent, or crack, which could lead to loss of control of the helicopter.

Effective: Nov 5, 2013 Category: aircraft Compliance: Within 50 hours time-in-service (TIS) from the effective date.

Why matched: Airworthiness Directives; Bell Helicopter Textron, Inc., Helicopters

2013-19-05

final rule

Airworthiness Directives; Bell Helicopter Textron, Inc., Helicopters

Unsafe Condition: Failure of the pylon support spindle assembly due to cracks, corrosion, or damage leading to loss of control of the helicopter.

Effective: Nov 5, 2013 Category: aircraft Compliance: Before further flight

Why matched: Airworthiness Directives; Bell Helicopter Textron, Inc., Helicopters

2013-22188

final rule

Airworthiness Directives; Bell Helicopter Textron, Inc. (Bell) Helicopters

Unsafe Condition: Rapid growth of a crack leading to premature chain failure, which could result in failure of the chain, loss of tail rotor blade pitch control, and subsequent loss of control of the helicopter.

Effective: Oct 18, 2013 Category: aircraft Compliance: Before further flight

Why matched: Airworthiness Directives; Bell Helicopter Textron, Inc. (Bell) Helicopters

2013-18-07

final rule

Airworthiness Directives; Bell Helicopter Textron, Inc. (Bell) Helicopters

Unsafe Condition: Failure of the tail rotor control system chain due to rapid growth of a crack leading to premature chain failure.

Effective: Oct 18, 2013 Category: aircraft Compliance: before further flight

Why matched: Airworthiness Directives; Bell Helicopter Textron, Inc. (Bell) Helicopters

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

2013-16-16

final rule

Airworthiness Directives; Agusta S.p.A. and Bell Helicopter Textron Helicopters

Unsafe Condition: Failure of a crosstube, which could result in collapse of the landing gear.

Effective: Sep 17, 2013 Category: aircraft Compliance: Within 30 days

Why matched: Airworthiness Directives; Agusta S.p.A. and Bell Helicopter Textron Helicopters

Technical illustration of an aircraft landing gear and wheel assembly
Problem area Landing gear

2013-15-02

final rule

Airworthiness Directives; Bell Helicopter Textron Helicopters

Unsafe Condition: Fatigue cracking of tail rotor blades (T/R blades), part numbers 212-010-750-009, -105, and -107, leading to failure and potential loss of helicopter control.

Effective: Aug 14, 2013 Category: aircraft Compliance: Within 25 hours TIS or 30 days, whichever occurs first, and thereafter at the same intervals.

Why matched: Airworthiness Directives; Bell Helicopter Textron Helicopters

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

2013-06-51

final rule

Airworthiness Directives; Various Helicopter Models

Unsafe Condition: Failure of the overload clutch in Goodrich externally-mounted hoists, resulting in uncontrolled reeling-out of the cable and loss of load capacity.

Effective: Jul 15, 2013 Category: aircraft Compliance: Before the next flight involving a hoist operation.

Why matched: Airworthiness Directives; Various Helicopter Models

2013-11-05

final rule

Airworthiness Directives; Bell Helicopter Textron, Inc. (Bell) Helicopters

Unsafe Condition: Incorrectly manufactured seal material on the tail rotor hanger bearing, which does not meet Bell specifications, could result in seal failure and grease loss, potentially leading to bearing failur...

Effective: Jun 19, 2013 Category: aircraft Compliance: Within 10 hours TIS

Why matched: Airworthiness Directives; Bell Helicopter Textron, Inc. (Bell) Helicopters

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

2013-05-14

final rule

Airworthiness Directives; Bell Helicopter Textron, Inc.

Unsafe Condition: Cracking in the swashplate outer ring assembly (outer ring), part number 412-010-407-105, which could result in the loss of main rotor blade pitch control and subsequent loss of helicopter control.

Effective: Apr 26, 2013 Category: aircraft Compliance: Within 30 days for establishing the retirement life and revising the maintenance manual or ICA. W...

Why matched: Airworthiness Directives; Bell Helicopter Textron, Inc.

2013-02238 Recurring

final rule

Airworthiness Directives; Bell Helicopter Textron, Inc., Helicopters

Unsafe Condition: Failure and corrosion of the affected crosstubes, which could result in collapse of the landing gear and subsequent loss of control of the helicopter.

Effective: Mar 11, 2013 Category: aircraft Compliance: Within 50 hours time-in-service (TIS)

Why matched: Airworthiness Directives; Bell Helicopter Textron, Inc., Helicopters

Technical illustration of an aircraft landing gear and wheel assembly
Problem area Landing gear

2013-01-04

final rule

Airworthiness Directives; Bell Helicopter Textron, Inc., Helicopters

Unsafe Condition: Failure of a high aft crosstube assembly due to fatigue damage from towing and landing, leading to landing gear collapse and subsequent loss of control of the helicopter.

Effective: Mar 11, 2013 Category: aircraft Compliance: Effective March 11, 2013

Why matched: Airworthiness Directives; Bell Helicopter Textron, Inc., Helicopters

Technical illustration of an aircraft landing gear and wheel assembly
Problem area Landing gear