45 ADs indexed for Sierra Hotel Aero, Inc. aircraft.
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...
Why matched: Airworthiness Directives; Various Airplanes
Airworthiness Directives; Sierra Hotel Aero, Inc. Models Navion (L-17A), Navion A (L-17B), (L-17C), Navion B, Navion D, Navion E, Navion F, Navion G, and Navion H Airplanes
Unsafe Condition: Leaking or improperly operating fuel selector valves may disrupt fuel flow to the engine, leading to engine power loss.
Why matched: Airworthiness Directives; Sierra Hotel Aero, Inc. Models Navion (L-17A), Navion A (L-17B), (L-17C), Navion B, Navion D, Navion E, Navion F, Navion G, and Navion H Airplanes
Airworthiness Directives; GARMIN International Inc. GTX 33, GTX 33D, GTX 330, and GTX 330D Mode S Transponders
Unsafe Condition: The GTX 33/33D/330/330D Mode S transponders may detect the S1 (suppression) interrogating pulse below the minimum trigger level (MTL) and, in some circumstances, not reply. This could lead to inacc...
Why matched: Airworthiness Directives; GARMIN International Inc. GTX 33, GTX 33D, GTX 330, and GTX 330D Mode S Transponders
Airworthiness Directives; Cessna Aircraft Company Engine Oil Filter Adapter Assemblies Installed on Aircraft
Unsafe Condition: Loose or separated engine oil filter adapters could cause loss of engine oil, leading to engine stoppage while in flight and loss of control of the airplane.
Why matched: Airworthiness Directives; Cessna Aircraft Company Engine Oil Filter Adapter Assemblies Installed on Aircraft
Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979
Unsafe Condition: The Exide AC 78M and Willard W 78M batteries manufactured between December 1978 and February 1979, identified by N-8, A-9, or B-9 stamped on terminal posts, may fail due to internal short circuits ...
Why matched: Airworthiness Directives; ESB WISCO, INCORPORATED: Applies To Those Batteries Manufactured During December 1978, January and February 1979
Airworthiness Directives; BEECH Models A23-19, 19A, M19A, B19, B19 Sport 150, 23, A23, A23A, B23, C23, C23 Sundowner 180, A23-24, A24, A24R, A24R and B24R Sierra 200 Airplanes.
Unsafe Condition: Improper operation of carburetor mixture and/or carburetor heat control cables could lead to loss of engine power or engine failure.
Why matched: Airworthiness Directives; BEECH Models A23-19, 19A, M19A, B19, B19 Sport 150, 23, A23, A23A, B23, C23, C23 Sundowner 180, A23-24, A24, A24R, A24R and B24R Sierra 200 Airplanes.
Airworthiness Directives; BEECH, CESSNA, NAVION AND PIPER Models 35, A35, B35, C35, D35, E35, F35, G35, 35R, 35-33, 35-A33, 35-B33, 35-C33, 35-C33A, E33, E33A, E33C, F33, F33A, F33C, G33, H35, J35, K35, M35, N35, P35, S35, V35, V35A, V35B, 36, A36 Series and Piper Models PA24, PA24-250, PA24-260 Series, Navion Model Navion A Series, Cessna Models 182, 182A, 182B, 182C, 182D, 182E, 182F, 182G, 182H, 182J, 182K, 182L, 182M, 182N, 182P Series Airplanes
Unsafe Condition: Loss of engine oil, improper engine lubrication, or engine oil contamination due to polyester urethane particles breaking off the internal screen material of the Beryl Aviation air oil separator Fi...
Why matched: Airworthiness Directives; BEECH, CESSNA, NAVION AND PIPER Models 35, A35, B35, C35, D35, E35, F35, G35, 35R, 35-33, 35-A33, 35-B33, 35-C33, 35-C33A, E33, E33A, E33C, F33, F33A, F33C, G33, H35, J35, K35, M35, N35, P35, S35, V35, V35A, V35B, 36, A36 Series and Piper Models PA24, PA24-250, PA24-260 Series, Navion Model Navion A Series, Cessna Models 182, 182A, 182B, 182C, 182D, 182E, 182F, 182G, 182H, 182J, 182K, 182L, 182M, 182N, 182P Series Airplanes
Airworthiness Directives; BEECH Models A23-19, 19A, M19A, B19, B19 Sport 150, 23, A23, A23A, B23, C23, C23 Sundowner 180, A23-24, A24, A24R, A24R and B24R Sierra 200 Airplanes
Unsafe Condition: Improper or unintentional movement of the fuel selector valve and binding of the P/N 169-920000-61-127 or -131 selector valve in the 'Off' position, which could prevent complete shutoff.
Why matched: Airworthiness Directives; BEECH Models A23-19, 19A, M19A, B19, B19 Sport 150, 23, A23, A23A, B23, C23, C23 Sundowner 180, A23-24, A24, A24R, A24R and B24R Sierra 200 Airplanes
Airworthiness Directives; SIERRA ENGINEERING CO: Applies to Sierra Engineering Company Model 289-601 Series Passenger Oxygen Masks
Unsafe Condition: Separation of the reservoir from the mask facepiece
Why matched: Airworthiness Directives; SIERRA ENGINEERING CO: Applies to Sierra Engineering Company Model 289-601 Series Passenger Oxygen Masks
Airworthiness Directives; Navion Models Navion through Navion H Airplanes
Unsafe Condition: Failure of the Rudder Horn, P/N 145-24401, due to horizontal cracks or corrosion in the edge, which may appear as delaminations or swelling under the paint.
Why matched: Airworthiness Directives; Navion Models Navion through Navion H Airplanes
Airworthiness Directives; Navion Models Navion, Navion A, Navion B, Navion D, Navion E, Navion F, and Navion G Aircraft
Unsafe Condition: The landing gear selector valve end fitting P/N 145-58145-3 (heat treated and non-heat treated) has a service history of failure during attempts to extend the gear.
Why matched: Airworthiness Directives; Navion Models Navion, Navion A, Navion B, Navion D, Navion E, Navion F, and Navion G Aircraft
Airworthiness Directives; Navion All Models
Unsafe Condition: Cracks starting at the wing centerline attaching bolt hole in the wing rear spar junction fittings (P/N 145-14070) at wing Station O have been found on a number of Navion aircraft.
Why matched: Airworthiness Directives; Navion All Models
Airworthiness Directives; NAVION All Serials Up to and Including Number NAV-4-947.
Unsafe Condition: Nose gear hydraulic actuating cylinder line failures due to inflexibility.
Why matched: Airworthiness Directives; NAVION All Serials Up to and Including Number NAV-4-947.
Airworthiness Directives; All Navion Models Except Those Incorporating Palo Alto Airport Co. or Symon Engineering Co. Horizontal Stabilizer Modifications
Unsafe Condition: Improper rivet edge distance on 145-21404-1 and -2 front fittings of the horizontal stabilizer may result in structural failure due to insufficient material extending beyond the rivet holes.
Why matched: Airworthiness Directives; All Navion Models Except Those Incorporating Palo Alto Airport Co. or Symon Engineering Co. Horizontal Stabilizer Modifications
Airworthiness Directives; Navion Serial Numbers NAV-4-2 Through NAV-4-1110
Unsafe Condition: The fuel shutoff valve flexible control may buckle or misalign due to insufficient support, leading to inadequate valve opening when the control knob is pushed to the full 'ON' position.
Why matched: Airworthiness Directives; Navion Serial Numbers NAV-4-2 Through NAV-4-1110
Airworthiness Directives; All Navion Models
Unsafe Condition: Relative motion between the wing and fuselage at the wing-to-fuselage attachment due to elongated bolt holes, necessitating additional shear carrying attachment angles.
Why matched: Airworthiness Directives; All Navion Models
Airworthiness Directives; All Navion Airplanes Equipped With Product Techniques, Inc., Propeller Spinners
Unsafe Condition: Unsatisfactory spinner bulkheads with thickness less than 0.045 inch at the perimeter may fail, leading to propeller spinner detachment.
Why matched: Airworthiness Directives; All Navion Airplanes Equipped With Product Techniques, Inc., Propeller Spinners
Airworthiness Directives; Navion Serial Numbers NAV-4-10 Through 20, 22 Through 26, 28, 29, 31 Through 49, 51, 52, 55 Through 58, 60, 63, 73, 76, 79, 82 Through 84, 88 Through 95, 99 Through 104, 106, 108, 110, 112 Through 116, 120 Through 122, 124, 125, 130, 133, 141, 151, 153, 158, 163, 171.
Unsafe Condition: The cork or rubber filler strip cemented to the upper surface of the 145-42201-71 carburetor air intake scoop may become dislodged and drawn into the air induction system.
Why matched: Airworthiness Directives; Navion Serial Numbers NAV-4-10 Through 20, 22 Through 26, 28, 29, 31 Through 49, 51, 52, 55 Through 58, 60, 63, 73, 76, 79, 82 Through 84, 88 Through 95, 99 Through 104, 106, 108, 110, 112 Through 116, 120 Through 122, 124, 125, 130, 133, 141, 151, 153, 158, 163, 171.
Airworthiness Directives; All Navion Models Equipped With Hartzell Propeller Blade Models 8428, 8428C, 8428R Having Serial Numbers Below 61000
Unsafe Condition: Fillers used in Hartzell Propeller Blade Models 8428, 8428C, 8428R with serial numbers below 61000 may be discernible to the naked eye in the area approximately 4 inches outboard of the blade clamp...
Why matched: Airworthiness Directives; All Navion Models Equipped With Hartzell Propeller Blade Models 8428, 8428C, 8428R Having Serial Numbers Below 61000
Airworthiness Directives; All Navion Models Having Serial Numbers 1789 through 2019; 2021 through 2026; 2028 through 2142; 2144 through 2169; 2171 through 2177; and 2180
Unsafe Condition: Throttle housing slippage at the swaged joint between the cable housing and ferrule at the instrument panel end can result in erratic throttle operation.
Why matched: Airworthiness Directives; All Navion Models Having Serial Numbers 1789 through 2019; 2021 through 2026; 2028 through 2142; 2144 through 2169; 2171 through 2177; and 2180