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2005-12-02 Recurring

final rule

Airworthiness Directives; Revo, Incorporated Models Colonial C-2, Lake LA-4, Lake LA-4A, Lake LA-4P, and Lake LA-4-200 Airplanes

Unsafe Condition: Fatigue cracks in the horizontal stabilizer attachment fitting (part number 2-2200-21) could result in failure of the fitting, leading to loss of control of the airplane.

Effective: Jul 8, 2005 Category: aircraft Compliance: Within 12 months of the effective date (July 8, 2005)

Why matched: Airworthiness Directives; Revo, Incorporated Models Colonial C-2, Lake LA-4, Lake LA-4A, Lake LA-4P, and Lake LA-4-200 Airplanes

2004-25-22

final rule

Airworthiness Directives; Great Lakes Aircraft Company, LLC, Models 2T-1A-1 and 2T-1A-2 Airplanes

Unsafe Condition: Heat distortion, damage, and cracks in the alternate air door could cause pieces to break off and get sucked into the induction system, blocking the airflow to the engine. Additionally, the absence...

Effective: Jan 28, 2005 Category: aircraft Compliance: Before further flight

Why matched: Airworthiness Directives; Great Lakes Aircraft Company, LLC, Models 2T-1A-1 and 2T-1A-2 Airplanes

Technical illustration of an aircraft turbine engine assembly
Problem area Engine

2002-21-05

final rule

Airworthiness Directives; REVO, Incorporated Models Lake LA-4, Lake LA-4A, Lake LA-4P, Lake LA-4-200, and Lake Model 250 Airplanes

Unsafe Condition: Cracks in the upper and lower wing spar doublers and angles, which could lead to wing spar failure and wing separation from the airplane.

Effective: Oct 23, 2002 Category: aircraft Compliance: After the incorporation of Modification Kit B-79 or FAA-approved equivalent.

Why matched: Airworthiness Directives; REVO, Incorporated Models Lake LA-4, Lake LA-4A, Lake LA-4P, Lake LA-4-200, and Lake Model 250 Airplanes

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

2000-10-22

final rule

Airworthiness Directives; REVO, Incorporated Models Lake LA-4, Lake LA-4A, Lake LA-4P, Lake LA-4-200, and Lake Model 250 Airplanes

Unsafe Condition: Fatigue cracks in the wing spars, specifically at the second-most inboard wing attachment bolt hole, could result in wing separation and loss of control.

Effective: Jun 20, 2000 Category: aircraft Compliance: Within 12 months of the effective date of the AD.

Why matched: Airworthiness Directives; REVO, Incorporated Models Lake LA-4, Lake LA-4A, Lake LA-4P, Lake LA-4-200, and Lake Model 250 Airplanes

2000-03-51

final rule

Airworthiness Directives; McDonnell Douglas Model DC-9, Model MD-90-30, Model 717-200, and Model MD-88 Airplanes

Unsafe Condition: Excessive wear of the jackscrew assembly of the horizontal stabilizer could result in loss of pitch trim capability, leading to loss of vertical control of the airplane.

Effective: Mar 6, 2000 Category: aircraft Compliance: Before further flight.

Why matched: Airworthiness Directives; McDonnell Douglas Model DC-9, Model MD-90-30, Model 717-200, and Model MD-88 Airplanes

Amdt-39-10524

final rule

Airworthiness Directives; REVO, Incorporated Models Colonial C-2, Lake LA-4, Lake LA-4A, Lake LA-4P, and Lake LA-4-200 Airplanes

Unsafe Condition: Fatigue cracks to the horizontal and vertical stabilizer attachment fitting could result in loss of control of the airplane.

Effective: Jun 8, 1998 Category: aircraft Compliance: Before further flight

Why matched: Airworthiness Directives; REVO, Incorporated Models Colonial C-2, Lake LA-4, Lake LA-4A, Lake LA-4P, and Lake LA-4-200 Airplanes

94-22-02

final rule

Airworthiness Directives; CONSOLIDATED AERONAUTICS Lake Model 250 airplanes

Unsafe Condition: Failure of the elevator autotrim to disengage could result in flight path deviations.

Effective: Nov 4, 1994 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; CONSOLIDATED AERONAUTICS Lake Model 250 airplanes

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

78-26-10 R1

final rule

Airworthiness Directives; Great Lakes Model 2T-1A-1 and 2T-1A-2 Airplanes

Unsafe Condition: Contamination of cockpit heater air with carbon monoxide due to cracks in the support plates of the heat exchanger at both ends between the five tube cluster.

Effective: Dec 17, 1986 Category: aircraft Compliance: Within the next 25 hours time-in-service after the effective date of this AD, and within each 25 ...

Why matched: Airworthiness Directives; Great Lakes Model 2T-1A-1 and 2T-1A-2 Airplanes

86-23-05

final rule

Airworthiness Directives; Consolidated Lake Model 250 Series Airplanes

Unsafe Condition: Possible contact of the fuel shutoff valve handle hardware and the cabin rear upholstery panel.

Effective: Dec 17, 1986 Category: aircraft Compliance: within the next 100 hours time-in-service after the effective date of this AD

Why matched: Airworthiness Directives; Consolidated Lake Model 250 Series Airplanes

80-21-12 R1

final rule

Airworthiness Directives; Great Lakes Models 2T-1A-1 and 2T-1A-2 Series Airplanes

Unsafe Condition: Engine oil inlet temperatures exceeding acceptable limits due to inadequate cooling airflow.

Effective: Apr 14, 1983 Category: aircraft Compliance: within the next 50 hours time-in-service after the effective date of this AD

Why matched: Airworthiness Directives; Great Lakes Models 2T-1A-1 and 2T-1A-2 Series Airplanes

Technical illustration of an aircraft turbine engine assembly
Problem area Engine

79-21-09 R1

final rule

Airworthiness Directives; Consolidated Aeronautics Models Colonial C-1, Colonial C-2, Lake LA-4, Lake LA-4A, Lake LA-4P, and Lake LA-4-200 Airplanes

Unsafe Condition: Burning of power wires in case of an electrical short due to anchor light or bilge pump power lines bypassing the battery relay.

Effective: Jun 8, 1981 Category: aircraft Compliance: within the next 50 hours time in service

Why matched: Airworthiness Directives; Consolidated Aeronautics Models Colonial C-1, Colonial C-2, Lake LA-4, Lake LA-4A, Lake LA-4P, and Lake LA-4-200 Airplanes

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

79-06-01

final rule

Airworthiness Directives; Consolidated Aeronautics Model Lake LA-4-200 Airplanes

Unsafe Condition: Engine mounts with cracked straps, part number 2-5400-245, could result in engine separation.

Effective: Feb 23, 1979 Category: aircraft Compliance: Prior to further flight and within the next 15 hours flight time.

Why matched: Airworthiness Directives; Consolidated Aeronautics Model Lake LA-4-200 Airplanes

76-24-02

final rule

Airworthiness Directives; Consolidated Aeronautics Model Lake LA-4-200 Airplanes

Unsafe Condition: Engine oil cooler failures allowing rapid loss of engine oil which could result in engine stoppage.

Effective: Oct 15, 1976 Category: aircraft Compliance: Before next flight of the affected airplanes for inspection; prior to further flight for replacem...

Why matched: Airworthiness Directives; Consolidated Aeronautics Model Lake LA-4-200 Airplanes

Technical illustration of an aircraft turbine engine assembly
Problem area Engine

76-02-01

final rule

Airworthiness Directives; Consolidated Aeronautics Models Lake LA-4 and Lake LA-4-200 Airplanes

Unsafe Condition: Engine power interruption resulting from water contamination of the fuel system due to water entering the auxiliary fuel tank sumps.

Effective: Jan 30, 1976 Category: aircraft Compliance: by the effective date of this Amendment

Why matched: Airworthiness Directives; Consolidated Aeronautics Models Lake LA-4 and Lake LA-4-200 Airplanes

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

74-26-02

final rule

Airworthiness Directives; Consolidated Aeronautics Models Colonial C-1, Colonial C-2, Lake LA-4, LA-4A, LA-4P and LA-4-200 Airplanes

Unsafe Condition: Failure of the arms of the rudder bellcrank assembly (P/N's 2-7109-1, 2-7103-91 and 1-7103-1) leading to loss of rudder control.

Effective: Dec 27, 1974 Category: aircraft Compliance: Within 10 hours' time in service after the effective date of this AD and thereafter at intervals ...

Why matched: Airworthiness Directives; Consolidated Aeronautics Models Colonial C-1, Colonial C-2, Lake LA-4, LA-4A, LA-4P and LA-4-200 Airplanes

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

74-09-06

final rule

Airworthiness Directives; Consolidated Aeronautics Model Lake LA-4-200 Airplanes

Unsafe Condition: The possibility of engine stoppage resulting from contamination in the fuel injector due to a flush insert in the restrictor fitting P/N 2-6750-41.

Effective: May 10, 1974 Category: aircraft Compliance: within the next twenty-five (25) hours time in service after the effective date of this AD

Why matched: Airworthiness Directives; Consolidated Aeronautics Model Lake LA-4-200 Airplanes

72-07-11

final rule

Airworthiness Directives; Consolidated Aeronautics Model Colonial C-1, Colonial C-2, Lake LA-4, LA-4A, LA- 4P and LA-4-200 Airplanes

Unsafe Condition: Failure of the rod-end bearing, P/N HM-5C, connected to the flap pushrod, P/N 2-7811-21, which could result in hazards in flight due to corrosion, cracks, or binding of the ball motion.

Effective: Jan 5, 1973 Category: aircraft Compliance: within the next 15 hours in service after the effective date of this AD, unless already accomplis...

Why matched: Airworthiness Directives; Consolidated Aeronautics Model Colonial C-1, Colonial C-2, Lake LA-4, LA-4A, LA- 4P and LA-4-200 Airplanes

67-11-01

final rule

Airworthiness Directives; Colonial Aeronautics Models Colonial C-1, Colonial C-2, Lake LA-4P, Lake LA-4A, Lake LA-4

Unsafe Condition: Failure of the fuel pressure gauge instrument line could allow unrestricted fuel to enter the cabin compartment.

Effective: Aug 5, 1967 Category: aircraft Compliance: within 25 hours' time in service after April 5, 1967

Why matched: Airworthiness Directives; Colonial Aeronautics Models Colonial C-1, Colonial C-2, Lake LA-4P, Lake LA-4A, Lake LA-4

65-15-03

final rule

Airworthiness Directives; Consolidated Aeronautics Model Lake LA-4 Aircraft

Unsafe Condition: Failure of the nose landing gear to latch in the down and locked position due to incorrect bolt installation or elongated bolt holes in the nose gear drag strut assembly.

Effective: Jul 1, 1965 Category: aircraft Compliance: within the next 25 hours' time in service after the effective date of this AD unless already acco...

Why matched: Airworthiness Directives; Consolidated Aeronautics Model Lake LA-4 Aircraft

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

64-17-05

final rule

Airworthiness Directives; Consolidated Aeronautics Models Lake LA-4, Lake LA-4A and Lake LA-4P Aircraft

Unsafe Condition: Complete breather blockage and subsequent loss of engine oil due to icing.

Effective: Aug 28, 1964 Category: aircraft Compliance: prior to September 15, 1964

Why matched: Airworthiness Directives; Consolidated Aeronautics Models Lake LA-4, Lake LA-4A and Lake LA-4P Aircraft

Technical illustration of an aircraft turbine engine assembly
Problem area Engine