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2024-16-06 Recurring

final rule

Airworthiness Directives; Air Tractor, Inc. Airplanes

Unsafe Condition: The unsafe condition on these products is the potential for cracks in the horizontal stabilizer spars, which could result in structural failure of the horizontal tail with consequent loss of contro...

Effective: Sep 4, 2024 Category: aircraft Compliance: Within 7 days or before the airplane accumulates 110 hours TIS since installation of STC No. SA01...

Why matched: Airworthiness Directives; Air Tractor, Inc. Airplanes

2022-03-15

final rule

Airworthiness Directives; Various Airplanes

Unsafe Condition: The displayed fuel quantity can have an error as much as four gallons/fuel tank with the display indicating four gallons with an empty tank. In the context of this event, the end level effect is th...

Effective: Mar 21, 2022 Category: aircraft Compliance: Before further flight

Why matched: Airworthiness Directives; Various Airplanes

Technical illustration of an aircraft fuel pump, filter, valve, and lines
Problem area Fuel system

2021-05-14 Recurring

final rule

Airworthiness Directives; Air Tractor, Inc., Airplanes

Unsafe Condition: cracks in the flap torque tube attachment brackets that may cause the flap actuator to detach from the flap torque tube

Effective: Apr 29, 2021 Category: aircraft Compliance: Within 300 hours TIS after the effective date of the AD, and then every 345 hours TIS thereafter

Why matched: Airworthiness Directives; Air Tractor, Inc., Airplanes

2014-16-17 Recurring

final rule

Airworthiness Directives; Air Tractor, Inc. Airplanes

Unsafe Condition: Fatigue cracking in the wing main spar lower caps at the center splice joint, as demonstrated in service on Models AT-802 and AT-802A agricultural application airplanes, poses a risk of similar cra...

Effective: Sep 29, 2014 Category: aircraft Compliance: Within 50 flight hours after the effective date of this AD.

Why matched: Airworthiness Directives; Air Tractor, Inc. Airplanes

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

2009-18-04

final rule

Airworthiness Directives; Air Tractor, Inc. Models AT-802 and AT-802A Airplanes

Unsafe Condition: Jamming of the rudder-aileron interconnect cables by unsecured items in the baggage compartment, which could result in failure of the rudder-aileron interconnect cable system. This failure could le...

Effective: Oct 1, 2009 Category: aircraft Compliance: Before further flight for securing items; no later than December 31, 2009, for installing the cab...

Why matched: Airworthiness Directives; Air Tractor, Inc. Models AT-802 and AT- 802A Airplanes

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

2009-11-05 Recurring

final rule

Airworthiness Directives; Air Tractor, Inc. Models AT-400, AT-400A, AT-402, AT-402A, AT-402B, AT-502, AT-502A, AT-502B, AT-503A, AT-602, AT-802, and AT-802A Airplanes

Unsafe Condition: Cracks in the engine mounts could result in failure of the engine mount, leading to separation of the engine from the airplane.

Effective: Jun 1, 2009 Category: engine Compliance: Within 50 flight hours after the effective date of this AD.

Why matched: Airworthiness Directives; Air Tractor, Inc. Models AT-400, AT- 400A, AT-402, AT-402A, AT-402B, AT-502, AT-502A, AT-502B, AT-503A, AT- 602, AT-802, and AT-802A Airplanes

Technical illustration of an aircraft turbine engine assembly
Problem area Engine

2006-08-08 R1

final rule

Airworthiness Directives; Air Tractor, Inc. Models AT-400, AT- 401, AT-401B, AT-402, AT-402A, and AT-402B Airplanes

Unsafe Condition: Fatigue cracking of the wing lower spar cap could occur, which could result in reduced structural integrity of the wing and possible wing failure.

Effective: May 5, 2009 Category: aircraft Compliance: within 120 flight hours after August 8, 2006, or at the next annual inspection, whichever occurs ...

Why matched: Airworthiness Directives; Air Tractor, Inc. Models AT-400, AT- 401, AT-401B, AT-402, AT-402A, and AT-402B Airplanes

2008-26-01

final rule

Airworthiness Directives; Air Tractor, Inc. Models AT-200, AT-300, AT-400, AT-500, AT-600, and AT-800 Series Airplanes

Unsafe Condition: The front and rear connections of the overturn skid plate to the airplane can break, allowing foreign debris to enter the cockpit during an airplane overturn, which could lead to pilot injury.

Effective: Jan 28, 2009 Category: aircraft Compliance: Within the next 180 days after July 7, 2008 (the effective date of AD 2008-11-17).

Why matched: Airworthiness Directives; Air Tractor, Inc. Models AT-200, AT- 300, AT-400, AT-500, AT-600, and AT-800 Series Airplanes

2008-21-08 Recurring

final rule

Airworthiness Directives; Air Tractor, Inc. Models AT-402, AT-402A, and AT-402B Airplanes

Unsafe Condition: A loose upper rudder hinge caused by fatigue, which can lead to hinge failure, rudder folding over in flight, and potential contact with the elevator, affecting pitch control and leading to loss of...

Effective: Nov 20, 2008 Category: aircraft Compliance: Initially inspect when the airplane reaches a total time-in-service (TIS) of 3,500 hours or withi...

Why matched: Airworthiness Directives; Air Tractor, Inc. Models AT-402, AT- 402A, and AT-402B Airplanes

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

2008-09-10 Recurring

final rule

Airworthiness Directives; Air Tractor, Inc. Models AT-300, AT-301, AT-302, AT-400, and AT-400A Airplanes

Unsafe Condition: Cracks in the wing centerline splice joint could result in the wing separating from the airplane during flight.

Effective: May 8, 2008 Category: aircraft Compliance: Within the specified safe life limit or as extended by the wing lower spar cap splice rework, wit...

Why matched: Airworthiness Directives; Air Tractor, Inc. Models AT-300, AT- 301, AT-302, AT-400, and AT-400A Airplanes

2007-10-01 Recurring

final rule

Airworthiness Directives; Air Tractor, Inc. Model AT-602 Airplanes

Unsafe Condition: Cracks in the horizontal stabilizer brace tube assembly, part number 30012-7, which could result in failure of the horizontal stabilizer and affect the ability to control pitch with consequent loss...

Effective: Jun 12, 2007 Category: aircraft Compliance: Within 60 days after June 12, 2007, or upon accumulating 2,000 hours time-in-service (TIS), which...

Why matched: Airworthiness Directives; Air Tractor, Inc. Model AT-602 Airplanes

2006-24-10

final rule

Airworthiness Directives; Air Tractor, Inc. Models AT-501, AT-502, AT-502A, AT-502B, and AT-503A Airplanes

Unsafe Condition: Fatigue cracks in the wing lower spar cap could result in failure of the spar cap and lead to wing separation.

Effective: Jan 8, 2007 Category: aircraft Compliance: Before further flight

Why matched: Airworthiness Directives; Air Tractor, Inc. Models AT-501, AT- 502, AT-502A, AT-502B, and AT-503A Airplanes

2006-23-14 Recurring

final rule

Airworthiness Directives; Air Tractor, Inc. Models AT-502, AT-502A, AT-502B, AT-602, AT-802, and AT-802A Airplanes

Unsafe Condition: Rudder separation from the vertical fin at the upper attach hinge area due to loose fasteners, cracks, or corrosion in the rudder and vertical fin hinge attaching structure.

Effective: Dec 21, 2006 Category: aircraft Compliance: Before further flight

Why matched: Airworthiness Directives; Air Tractor, Inc. Models AT-502, AT- 502A, AT-502B, AT-602, AT-802, and AT-802A Airplanes

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

2006-23-09 Recurring

final rule

Airworthiness Directives; Air Tractor, Inc. Model AT-602 Airplanes

Unsafe Condition: Fatigue cracking at the wing center splice joint outboard fastener hole in one of the wing main spar lower caps.

Effective: Dec 14, 2006 Category: aircraft Compliance: Before further flight

Why matched: Airworthiness Directives; Air Tractor, Inc. Model AT-602 Airplanes

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

2006-20-10 Recurring

final rule

Airworthiness Directives; Air Tractor, Inc. Models AT-802 and AT-802A Airplanes

Unsafe Condition: Separation of the hopper rinse tank shelf from the firewall, caused by damage and/or cracks in the attach angles, could result in failure of the attach angles. This failure could lead to shelf move...

Effective: Nov 3, 2006 Category: engine Compliance: Initially inspect within the next 100 hours time-in-service after November 3, 2006. If no damage ...

Why matched: Airworthiness Directives; Air Tractor, Inc. Models AT-802 and AT- 802A Airplanes

2005-13-12 Recurring

final rule

Airworthiness Directives; Air Tractor, Inc. Models AT-300, AT-301, AT-302, AT-400, AT-400A, AT-401, AT-402, AT-602, AT-802, and AT-802A Airplanes

Unsafe Condition: Fatigue failure in any eyebolt that attaches the front and rear spar of the horizontal stabilizer to the respective stabilizer strut.

Effective: Aug 5, 2005 Category: aircraft Compliance: Within 100 hours time-in-service after the effective date of the AD, with repetitive inspections ...

Why matched: Airworthiness Directives; Air Tractor, Inc. Models AT-300, AT- 301, AT-302, AT-400, AT-400A, AT-401, AT-402, AT-602, AT-802, and AT- 802A Airplanes

2004-15-15 Recurring

final rule

Airworthiness Directives; Air Tractor, Inc. Models AT-401, AT-401B, AT-402, AT-402A, AT-402B, AT-501, AT-502, AT-502A, AT-502B, AT-503A, AT-602, AT-802, and AT-802A Airplanes

Unsafe Condition: Cracks in the upper aft longeron and upper diagonal tube on the left hand side of the aft fuselage structure, which could cause the fuselage to fail and result in loss of control of the airplane.

Effective: Sep 7, 2004 Category: aircraft Compliance: Within 12 months of the effective date of this AD.

Why matched: Airworthiness Directives; Air Tractor, Inc. Models AT-401, AT-401B, AT-402, AT-402A, AT-402B, AT-501, AT-502, AT-502A, AT-502B, AT-503A, AT-602, AT-802, and AT-802A Airplanes

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

2003-07-04 Recurring

final rule

Airworthiness Directives; Air Tractor, Inc. Models AT-300, AT-400, AT-400A, AT-401, AT-401B, AT-402, AT-402A, AT-402B, AT-501, AT-502, and AT-502B Airplanes

Unsafe Condition: Failure of the \1/4\-inch thick vertical fin front spar fitting, which could result in failure of the rear spar fitting.

Effective: May 22, 2003 Category: aircraft Compliance: Before further flight

Why matched: Airworthiness Directives; Air Tractor, Inc. Models AT-300, AT-400, AT-400A, AT-401, AT-401B, AT-402, AT-402A, AT-402B, AT-501, AT-502, and AT-502B Airplanes

2002-15-06

final rule

Airworthiness Directives; Air Tractor, Inc. Models AT-802 and AT-802A Airplanes

Unsafe Condition: Rudder control cable broke due to wear at the aft fairlead, leading to potential loss of rudder control.

Effective: Sep 13, 2002 Category: aircraft Compliance: Before further flight.

Why matched: Airworthiness Directives; Air Tractor, Inc. Models AT-802 and AT- 802A Airplanes

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

2000-11-05 Recurring

final rule

Airworthiness Directives; Air Tractor Incorporated Models AT-301, AT-401, and AT-501 Airplanes

Unsafe Condition: Fatigue cracking of the vertical fin front spar attachment fittings, if not detected and corrected, could result in structural failure of the front spar and consequently the rear spar. This could l...

Effective: Jun 23, 2000 Category: aircraft Compliance: Within 100 hours time-in-service (TIS) from the effective date.

Why matched: Airworthiness Directives; Air Tractor Incorporated Models AT-301, AT-401, and AT-501 Airplanes