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2026-21-13 Recurring

final rule

Airworthiness Directives; Ontic Engineering and Manufacturing, Inc. (Type Certificate Previously Held by Swearingen, Fairchild Aircraft, and M7 Aerospace) Airplanes

Unsafe Condition: unsafe condition on these products.

Effective: Dec 1, 2026 Category: aircraft

Why matched: Airworthiness Directives; Ontic Engineering and Manufacturing, Inc. (Type Certificate Previously Held by Swearingen, Fairchild Aircraft, and M7 Aerospace) Airplanes

93-07-12

final rule

FAIRCHILD AIRCRAFT (formerly Swearingen Aircraft Corporation) SA226-T, A226-T(B), SA226-AT, SA226-TC, SA227-TT, SA227-AC and SA227-AT Airplanes

Unsafe Condition: Failure of the horizontal stabilizer rear spar, which could result in loss of control of the airplane.

Effective: May 28, 1993 Category: aircraft Compliance: Required as indicated after the effective date of this AD, unless already accomplished within the...

Why matched: FAIRCHILD AIRCRAFT (formerly Swearingen Aircraft Corporation) SA226-T, A226-T(B), SA226-AT, SA226-TC, SA227-TT, SA227-AC and SA227-AT Airplanes

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

92-19-08

final rule

FAIRCHILD AIRCRAFT (formerly Swearingen Aviation Corporation) SA226-T, SA226-T(B), SA226-AT, SA226-TC, SA227-TT, SA227-AT, SA227-AC Airplanes

Unsafe Condition: Failure of the rudder cable to rudder pedal link attachments, which could result in loss of control of the airplane.

Effective: Oct 16, 1992 Category: aircraft Compliance: Within 50 hours time-in-service after the effective date of this AD (October 16, 1992) or at 5,00...

Why matched: FAIRCHILD AIRCRAFT (formerly Swearingen Aviation Corporation) SA226-T, SA226-T(B), SA226-AT, SA226-TC, SA227-TT, SA227-AT, SA227-AC Airplanes

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

92-18-07

final rule

FAIRCHILD AIRCRAFT (formerly Swearingen Aircraft Corporation) SA226-T, SA226-T(B), SA226-AT, SA226-TC, SA227-TT, SA227-AT, SA227-AC and SA227-BC Airplanes

Unsafe Condition: Improper operation of the power lever flight idle detent arms could cause loss of control of the airplane.

Effective: Oct 2, 1992 Category: aircraft Compliance: within the next 100 hours time-in-service after the effective date of this AD

Why matched: FAIRCHILD AIRCRAFT (formerly Swearingen Aircraft Corporation) SA226-T, SA226-T(B), SA226-AT, SA226-TC, SA227-TT, SA227-AT, SA227-AC and SA227-BC Airplanes

90-14-01

final rule

Airworthiness Directives; FAIRCHILD AIRCRAFT CORPORATION (formerly Swearingen Aviation Corporation) Models SA226-AT, SA226-TC, SA227-AT, and SA227-AC Airplanes

Unsafe Condition: Rapid cabin decompression and passenger injury caused by window breakage due to ice shed from the propellers.

Effective: Feb 11, 1991 Category: aircraft Compliance: Prior to further flight for seat modification; within 30 calendar days after the effective date f...

Why matched: Airworthiness Directives; FAIRCHILD AIRCRAFT CORPORATION (formerly Swearingen Aviation Corporation) Models SA226-AT, SA226-TC, SA227-AT, and SA227-AC Airplanes

Technical illustration of an aircraft propeller assembly
Problem area Propeller

90-24-03

final rule

Airworthiness Directives; FAIRCHILD AIRCRAFT (SWEARINGEN AIRCRAFT) Models SA26, SA226, and SA227 Series Airplanes

Unsafe Condition: Aerodynamic vibration, structural deformation, and possible loss of control of the airplane due to corrosion or binding in the rudder trim tab link assemblies' rod end fittings and bearings.

Effective: Jan 25, 1991 Category: aircraft Compliance: within the next 15 hours time-in-service or 10 calendar days after receipt of this AD, whichever ...

Why matched: Airworthiness Directives; FAIRCHILD AIRCRAFT (SWEARINGEN AIRCRAFT) Models SA26, SA226, and SA227 Series Airplanes

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

85-22-06 R1

final rule

Airworthiness Directives; FAIRCHILD AIRCRAFT CORPORATION (formerly Swearingen Aviation Corporation) Models SA226-T, SA226-AT, SA226-TC, SA226- T(B), SA227-AC, SA227-TT, SA227-AT, Airplanes

Unsafe Condition: Failure of the Stall Avoidance System (SAS) due to servo pusher degradation or improper calibration could result in loss of control during flight.

Effective: Oct 19, 1990 Category: aircraft Compliance: Required within the next 100 hours time-in-service after the effective date (October 19, 1990) un...

Why matched: Airworthiness Directives; FAIRCHILD AIRCRAFT CORPORATION (formerly Swearingen Aviation Corporation) Models SA226-T, SA226-AT, SA226-TC, SA226- T(B), SA227-AC, SA227-TT, SA227-AT, Airplanes

90-03-19 R1

final rule

Airworthiness Directives; FAIRCHILD AIRCRAFT CORPORATION (formerly Swearingen Aviation Corporation) Models SA226-T, SA226-T(B), SA226-AT, SA226-TC, SA227-TT, SA227-AT, SA227-AC Airplanes

Unsafe Condition: An inadvertent deenergized battery bus relay, which could result in unrecoverable loss of the airplane's electrical power.

Effective: Aug 15, 1990 Category: aircraft Compliance: within the next 100 hours time-in-service after the effective date of this AD

Why matched: Airworthiness Directives; FAIRCHILD AIRCRAFT CORPORATION (formerly Swearingen Aviation Corporation) Models SA226-T, SA226-T(B), SA226-AT, SA226-TC, SA227-TT, SA227-AT, SA227-AC Airplanes

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

90-05-06 R1

final rule

FAIRCHILD (SWEARINGEN) Models SA226-T, SA226-T(B), SA226-AT, SA226-TC, SA227-TT, SA227-AT and SA227-AC Airplanes

Unsafe Condition: Main landing gear doors may jam against the nacelle skin and prevent extension of the landing gear.

Effective: Aug 13, 1990 Category: aircraft Compliance: within the next 250 hours time-in-service after the effective date of this AD

Why matched: FAIRCHILD (SWEARINGEN) Models SA226-T, SA226-T(B), SA226-AT, SA226-TC, SA227-TT, SA227-AT and SA227-AC Airplanes

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

84-13-01

final rule

FAIRCHILD (SWEARINGEN) Models SA226-TC, SA227-AT and SA227-TT Airplanes

Unsafe Condition: Cockpit fires can occur due to flammable fluid leaks, oxygen line leaks or inadequate clearance from moving parts, and electrical wire contact with oxygen tubing or hydraulic lines.

Effective: Jul 5, 1984 Category: aircraft Compliance: within 50 hours time-in-service after the effective date of this AD

Why matched: FAIRCHILD (SWEARINGEN) Models SA226-TC, SA227-AT and SA227-TT Airplanes

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

83-15-09

final rule

Airworthiness Directives; Fairchild (Swearingen) Models SA226-T, SA226-TB, SA226-AT, SA226-TC, SA227-AC, SA227-AT, and SA227-TT Airplanes

Unsafe Condition: The nose wheel steering system may not operate reliably due to potential hydraulic system failures or component malfunctions, leading to loss of steering control.

Effective: Sep 8, 1983 Category: aircraft Compliance: On or before November 1, 1983

Why matched: Airworthiness Directives; Fairchild (Swearingen) Models SA226-T, SA226-TB, SA226-AT, SA226-TC, SA227-AC, SA227-AT, and SA227-TT Airplanes

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

82-23-06

final rule

Airworthiness Directives; Fairchild Swearingen Models SA226-T(B), SA226-T, SA226-AT, and SA226-TC Airplanes

Unsafe Condition: Main landing gear doors shifting and locking the gear in the up position.

Effective: Nov 15, 1982 Category: aircraft Compliance: within the next 50 hours time-in-service

Why matched: Airworthiness Directives; Fairchild Swearingen Models SA226-T(B), SA226-T, SA226-AT, and SA226-TC Airplanes

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

81-26-04

final rule

Airworthiness Directives; Swearingen Model SA226-T, SA226-TC, and SA226-AT

Unsafe Condition: Disengagement of the control cables from the control pulleys

Effective: Dec 31, 1981 Category: aircraft Compliance: within the next 50 hours' time in service after the effective date of this AD but not later than ...

Why matched: Airworthiness Directives; Swearingen Model SA226-T, SA226-TC, and SA226-AT

81-24-04

final rule

Airworthiness Directives; Swearingen Model SA226-T, SA226-T(B), and SA226-AT

Unsafe Condition: Ice shed from the propeller spinner could be ingested into the engine inlet, resulting in flameout and subsequent total loss of engine power.

Effective: Nov 19, 1981 Category: aircraft Compliance: within the next 10 hours' time in service after the effective date of this AD unless already acco...

Why matched: Airworthiness Directives; Swearingen Model SA226-T, SA226-T(B), and SA226-AT

Technical illustration of an aircraft propeller assembly
Problem area Propeller

81-15-01

final rule

Airworthiness Directives; Swearingen Models SA226-T, SA226-AT, and SA226-TC Airplanes

Unsafe Condition: Structural wear or damage to the lower wing-to-fuselage aerodynamic fairing stiffeners, attached grommets, and lower fuselage pressure vessel skin.

Effective: Aug 15, 1981 Category: aircraft Compliance: within the next 200 hours' time in service after the effective date of this AD

Why matched: Airworthiness Directives; Swearingen Models SA226-T, SA226-AT, and SA226-TC Airplanes

79-25-04

final rule

Airworthiness Directives; Swearingen Models SA226-T, SA226-AT, and SA226-TC Airplanes

Unsafe Condition: The possible jamming of the elevator due to unmodified Rosemount SAS Servo P/N 9-50D1001.

Effective: Dec 10, 1979 Category: aircraft Compliance: within the next 10 hours time in service

Why matched: Airworthiness Directives; Swearingen Models SA226-T, SA226-AT, and SA226-TC Airplanes

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

79-13-07

final rule

Airworthiness Directives; Swearingen Models SA226-T, SA226-T(B), SA226-AT, and SA226-TC

Unsafe Condition: Inside latches of nose baggage compartment door may become disengaged by shifting baggage.

Effective: Jun 28, 1979 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; Swearingen Models SA226-T, SA226-T(B), SA226-AT, and SA226-TC

76-20-04

final rule

Airworthiness Directives; Swearingen Model SA226-T, SA226-AT, and SA226-TC

Unsafe Condition: Fuel or hydraulic leaks in the wheel wells could result in fire or loss of hydraulic system function.

Effective: Nov 17, 1978 Category: aircraft Compliance: Within the next 25 hours time in service after the effective date and within each subsequent 50 h...

Why matched: Airworthiness Directives; Swearingen Model SA226-T, SA226-AT, and SA226-TC

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

77-18-05

final rule

Airworthiness Directives; Swearingen Model SA226-T, -AT, and -TC Airplanes

Unsafe Condition: Failure of the variable authority nose wheel steering system utilizing a Talley P/N 1399T100-5 or -7 actuator could jeopardize the safe operation of the airplane.

Effective: Sep 12, 1977 Category: aircraft Compliance: within the next 25 hours' time in service after the effective date of this AD

Why matched: Airworthiness Directives; Swearingen Model SA226-T, -AT, and -TC Airplanes

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

77-04-08

final rule

Airworthiness Directives; Swearingen Models SA26-T and SA26-AT

Unsafe Condition: Failures of spar brackets, part numbers 26-31060-1, 26-31060-3, 26-31063-1, and 26-31063-3.

Effective: Mar 1, 1977 Category: aircraft Compliance: Within the next ten flight hours, unless already accomplished within the last 100 flight hours

Why matched: Airworthiness Directives; Swearingen Models SA26-T and SA26-AT

73-08-02

final rule

Airworthiness Directives; Swearingen Model SA226T and SA226AT Aircraft

Unsafe Condition: Operation in icing conditions with an unapproved oil cooler inlet scoop which may not provide adequate ice protection.

Effective: Apr 12, 1973 Category: aircraft Compliance: prior to further flight after receipt of this message

Why matched: Airworthiness Directives; Swearingen Model SA226T and SA226AT Aircraft

69-11-01

final rule

Airworthiness Directives; SWEARINGEN Model SA26-T and SA26-AT

Unsafe Condition: Failures of cockpit side windows, part numbers 26-21288-1 and 26-21288-2.

Effective: May 26, 1969 Category: aircraft Compliance: After the effective date of this AD (May 26, 1969)

Why matched: Airworthiness Directives; SWEARINGEN Model SA26-T and SA26-AT