North American Airworthiness Directives

23 ADs indexed for North American aircraft.

Models

Various 3 ADs

Recent ADs

2005-12-51

final rule

Airworthiness Directives; Rockwell International (Aircraft Specification No. A-2-575 Previously Held by North American and Recently Purchased by Boeing) Models AT-6 (SNJ-2), AT-6A (SNJ-3), AT-6B, AT-6C (SNJ-4), AT-6D (SNJ-5), AT-6F (SNJ-6), BC-1A, SNJ-7, and T-6G Airplanes; and Autair Ltd. (Aircraft Specification No. AR-11 Previously Held by Noorduyn Aviation Ltd.) Model Harvard (Army AT-16) Airplanes

Unsafe Condition: Fatigue cracks in the inboard and outboard, upper and lower wing attach angles (except for the nose angles) of both wings.

Effective: Jun 23, 2005 Category: aircraft Compliance: Before further flight

Why matched: Airworthiness Directives; Rockwell International (Aircraft Specification No. A-2-575 previously held by North American and recently purchased by Boeing) Models AT-6 (SNJ-2), AT-6A (SNJ-3), AT- 6B, AT-6C (SNJ-4), AT-6D (SNJ-5), AT-6F (SNJ-6), BC-1A, SNJ-7, and T-6G Airplanes; and Autair Ltd. (Aircraft Specification No. AR-11 previously held by Noorduyn Aviation Ltd.) Model Harvard (Army AT-16) Airplanes

View Details View AD (PDF) ↗

81-14-10

final rule

Airworthiness Directives; North American Model AT-6D, AT-6F and T-6G Series Airplanes

Unsafe Condition: Cracks in the single piece design horizontal stabilizer rear spar connector fittings (P/N 77-21021) could result in structural failure of the horizontal stabilizer.

Effective: Jul 13, 1981 Category: aircraft Compliance: within 20 flight hours after the effective date of this AD and every 20 flight hours thereafter u...

Why matched: Airworthiness Directives; North American Model AT-6D, AT-6F and T-6G Series Airplanes

Technical illustration of a riveted aircraft structural panel and frame
Problem area Airframe structure
View Details Official Source ↗

73-01-01

final rule

Airworthiness Directives; North American Rockwell - Aero Commander Model 100-180 and Model 100 Airplanes

Unsafe Condition: Loss or reduction of engine power due to exhaust outlet blockage.

Effective: Dec 29, 1972 Category: aircraft Compliance: Prior to the next 25 hours time in service if the exhaust system has accumulated 500 or more hour...

Why matched: Airworthiness Directives; North American Rockwell - Aero Commander Model 100-180 and Model 100 Airplanes

View Details Official Source ↗

72-23-04

final rule

Airworthiness Directives; NORTH AMERICAN ROCKWELL Model NA-265-40, NA-265-50, and NA-265-60

Unsafe Condition: Cracks, tool marks, nicks, scratches, rust, or other minor surface blemishes on the main landing gear outer strut cylinder and inner trunnion (cone shaped) surface could result in structural failure.

Effective: Nov 11, 1972 Category: aircraft Compliance: Within the next 100 hours' time in service, but not later than 90 days after the effective date o...

Why matched: Airworthiness Directives; NORTH AMERICAN ROCKWELL Model NA-265-40, NA-265-50, and NA-265-60

Technical illustration of an aircraft landing gear and wheel assembly
Problem area Landing gear
View Details Official Source ↗

72-19-03

final rule

Airworthiness Directives; NORTH AMERICAN ROCKWELL Models NA-265, NA-265-20, and NA-265-30, NA-265-40, NA-265-50, and NA-265-60 Airplanes

Unsafe Condition: Failure of the landing gear side brace could result in collapse of the landing gear during landing.

Effective: Sep 15, 1972 Category: aircraft Compliance: Within the next 25 hours' time in service after receipt of this telegram, but not later than 1 Oc...

Why matched: Airworthiness Directives; NORTH AMERICAN ROCKWELL Models NA-265, NA-265-20, and NA-265-30, NA-265-40, NA-265-50, and NA-265-60 Airplanes

Technical illustration of an aircraft landing gear and wheel assembly
Problem area Landing gear
View Details Official Source ↗

72-14-04

final rule

Airworthiness Directives; NORTH AMERICAN ROCKWELL Models NA-265, NA-265-20, NA-265-30, NA-265-40, and NA-265-60

Unsafe Condition: Failure of the main landing gear wheel door torque tube assembly due to cracking in the area 3 inches adjacent to the fore and aft weldments.

Effective: Jul 7, 1972 Category: aircraft Compliance: Within 50 hours' time in service after the effective date of this AD, unless already accomplished...

Why matched: Airworthiness Directives; NORTH AMERICAN ROCKWELL Models NA-265, NA-265-20, NA-265-30, NA-265-40, and NA-265-60

Technical illustration of an aircraft landing gear and wheel assembly
Problem area Landing gear
View Details Official Source ↗

71-25-04

final rule

Airworthiness Directives; NORTH AMERICAN ROCKWELL Models NA-265, NA-265-20, NA-265-30, NA-265-40, NA-265-60, NA-265-70

Unsafe Condition: Failure of the aileron control cables due to broken wires or wear reducing cable cross section area.

Effective: Dec 4, 1971 Category: aircraft Compliance: Within the next 100 hours time in service after the effective date of this AD, unless already acc...

Why matched: Airworthiness Directives; NORTH AMERICAN ROCKWELL Models NA-265, NA-265-20, NA-265-30, NA-265-40, NA-265-60, NA-265-70

Technical illustration of an aircraft flight control surface and actuator
Problem area Flight controls
View Details Official Source ↗

71-03-03

final rule

Airworthiness Directives; NORTH AMERICAN ROCKWELL Models NA-265, NA-265-20, NA-265-30, NA-265-40, and NA- 265-60

Unsafe Condition: Failure of the outboard flap track attachment lug due to cracking in the wing rear spar.

Effective: Feb 6, 1971 Category: aircraft Compliance: within the next 30 days after the effective date of this AD unless already accomplished

Why matched: Airworthiness Directives; NORTH AMERICAN ROCKWELL Models NA-265, NA-265-20, NA-265-30, NA-265-40, and NA- 265-60

Technical illustration of a riveted aircraft structural panel and frame
Problem area Airframe structure
View Details Official Source ↗

70-24-03

final rule

Airworthiness Directives; NORTH AMERICAN ROCKWELL NA-265 Series Airplanes

Unsafe Condition: Unwanted actuation of the Engine Emergency Fire Control 'T' handle to the emergency position due to insufficient interlock actuator pin design.

Effective: Nov 28, 1970 Category: aircraft Compliance: within the next 100 hours' time in service, or 120 days, whichever occurs earlier, after the effe...

Why matched: Airworthiness Directives; NORTH AMERICAN ROCKWELL NA-265 Series Airplanes

View Details Official Source ↗

70-12-06

final rule

Airworthiness Directives; NORTH AMERICAN ROCKWELL Models NA-265, NA-265-20, NA-265-30, NA-265-40, and NA-265- 60 Airplanes

Unsafe Condition: Severe nose gear shimmy and subsequent failure of the nose gear strut.

Effective: Jun 16, 1970 Category: aircraft Compliance: within the next 100 hours time in service after the effective date of this AD unless already acco...

Why matched: Airworthiness Directives; NORTH AMERICAN ROCKWELL Models NA-265, NA-265-20, NA-265-30, NA-265-40, and NA-265- 60 Airplanes

Technical illustration of an aircraft landing gear and wheel assembly
Problem area Landing gear
View Details Official Source ↗

70-02-09

final rule

Airworthiness Directives; NORTH AMERICAN Models NA-265-40 and -60

Unsafe Condition: Failure of the engine thrust reverser mechanism could result in uncommanded thrust reversal during flight, leading to loss of control.

Effective: Dec 19, 1969 Category: aircraft Compliance: Within ten (10) hours time in service or not later than December 29, 1969, whichever occurs first...

Why matched: Airworthiness Directives; NORTH AMERICAN Models NA-265-40 and -60

View Details Official Source ↗

69-12-08

final rule

AERO COMMANDER DIVISION, NORTH AMERICAN ROCKWELL CORPORATION Model 1121 Series Airplanes

Unsafe Condition: Failures of fuel supply system hose assemblies, part numbers AE700024-1, 6723008-65, 6723008-67, 6723008-149, and 6723008-179, due to separation of the hose liner material from the wire braid reinf...

Effective: Jun 21, 1969 Category: aircraft Compliance: Within the next 15 hours' time in service after the effective date of this AD (for initial inspec...

Why matched: AERO COMMANDER DIVISION, NORTH AMERICAN ROCKWELL CORPORATION Model 1121 Series Airplanes

Technical illustration of an aircraft electrical generator and wiring assembly
Problem area Electrical system
View Details Official Source ↗

69-08-10

final rule

Airworthiness Directives; AERO COMMANDER DIVISION, NORTH AMERICAN ROCKWELL CORPORATION Model 1121 Series Airplanes

Unsafe Condition: Failure of the horizontal stabilizer trim system to provide required trim capability at the approved aft center of gravity limit.

Effective: May 24, 1969 Category: aircraft Compliance: within the next 100 hours' time in service after the effective date of this A.D.

Why matched: Airworthiness Directives; AERO COMMANDER DIVISION, NORTH AMERICAN ROCKWELL CORPORATION Model 1121 Series Airplanes

Technical illustration of an aircraft flight control surface and actuator
Problem area Flight controls
View Details Official Source ↗

69-10-01

final rule

Airworthiness Directives; NORTH AMERICAN ROCKWELL Models NA-265 Series Aircraft

Unsafe Condition: Failure of the main landing gear pistons due to insufficient rework or inspection of the lower inside diameter.

Effective: May 9, 1969 Category: aircraft Compliance: Within 15 hours time in service after the effective date for Part I pistons, and within 300 hours...

Why matched: Airworthiness Directives; NORTH AMERICAN ROCKWELL Models NA-265 Series Aircraft

Technical illustration of an aircraft landing gear and wheel assembly
Problem area Landing gear
View Details Official Source ↗

68-20-01

final rule

Airworthiness Directives; NORTH AMERICAN ROCKWELL Models NA-265, NA-265-20, NA-265-30, NA-265-40 and NA-265-60

Unsafe Condition: Small cracks have been discovered in the area near the attachment bolt holes of the horizontal stabilizer support fitting.

Effective: Oct 28, 1968 Category: aircraft Compliance: within the next 100 hours time in service after the effective date of this AD

Why matched: Airworthiness Directives; NORTH AMERICAN ROCKWELL Models NA-265, NA-265-20, NA-265-30, NA-265-40 and NA-265-60

View Details Official Source ↗

61-05-05

final rule

Airworthiness Directives; North American Model T-28A Aircraft

Unsafe Condition: The R-1300-1A engines may experience failure modes requiring incorporation of Change 53 of T.O. 2R-R1300-5, fuel pump overhauls, hydraulic pump overhauls, propeller inspections and removal, and cyl...

Effective: Mar 4, 1961 Category: engine Compliance: Compliance required as indicated.

Why matched: Airworthiness Directives; North American Model T-28A Aircraft

View Details Official Source ↗

50-09-01

final rule

Airworthiness Directives; North American Models Model BC-1A, AT-6, AT-6A, AT-6B, and AT-6C Aircraft

Unsafe Condition: Cracked stabilizer spar fittings and improper installation of shims may result in structural failure of the horizontal stabilizer connection.

Category: aircraft Compliance: prior to original certification

Why matched: Airworthiness Directives; North American Models Model BC-1A, AT-6, AT-6A, AT-6B, and AT-6C Aircraft

Technical illustration of a riveted aircraft structural panel and frame
Problem area Airframe structure
View Details Official Source ↗

58-22-02

final rule

Airworthiness Directives; North American Model T-28A Aircraft

Unsafe Condition: Fatigue cracks emanating from the bolt holes in the main landing gear trunnion shaft.

Category: aircraft Compliance: every 200 hours

Why matched: Airworthiness Directives; North American Model T-28A Aircraft

Technical illustration of an aircraft landing gear and wheel assembly
Problem area Landing gear
View Details Official Source ↗

50-38-01

final rule

Airworthiness Directives; North American Model AT-6 Series Aircraft

Unsafe Condition: Intergranular corrosion in structural aluminum alloy components of the fuselage and wings may lead to structural failure.

Category: aircraft Compliance: at the next annual inspection and at each succeeding annual inspection thereafter

Why matched: Airworthiness Directives; North American Model AT-6 Series Aircraft

View Details Official Source ↗

46-46-02

final rule

Airworthiness Directives; North American Models BC-1A, AT-6, AT-6A, AT-6B, and AT-6C Aircraft

Unsafe Condition: Failure of the elevator rear stop on the horizontal stabilizer rear spar could result in improper elevator travel limits and loss of control.

Category: aircraft Compliance: prior to January 1, 1947

Why matched: Airworthiness Directives; North American Models BC-1A, AT-6, AT-6A, AT-6B, and AT-6C Aircraft

View Details Official Source ↗

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