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Airworthiness Directives
The following categories contain Airworthiness Directives which MAY be applicable to your aircraft. There are others involving appliances and radios that are not listed. Owners are encouraged to use the discussion forum to report any other applicable ADs for everyone's benefit.
Aircraft
AD 66-28-01 - To prevent takeoff with excessive elevator trim set
AD 67-23-01 - To detect improper rigging of main landing gear emergency extension
Updated 7-18-2000
Engine
AD 70-14-07 - To prevent loss of fuel injection pump adjustable bypass needle
AD 74-26-09 - Applies to certain Bendix S-20, S-200, S-1200 series magnetos
AD 76-07-12 - Malfunctioning Bendix ignition switches
AD 77-13-22 - To prevent the possibility of undetected crankcase cracks progressing into a crankcase failure
AD 79-05-09 - To prevent possible loss of oil pressure indication
AD 80-01-04 - To prevent failure of cylinder holddown flanges
AD 80-06-05 - Slick Magnetos - To prevent a possible magneto failure and subsequent engine or accessory malfunction
AD 81-16-05 - To prevent magneto failure due to a cracked coil
AD 81-17-01 - Bendix Starting Vibrator, to preclude the loss of ignition due to the grounding of both "P" leads
AD 81-24-06 - To prevent possible fuel leakage and potential fire hazard
AD 82-13-01 - Bendix Mags, to reduce the possibility of magneto and engine malfunction resulting from loose distributor block bushings
AD 82-20-01 - Bendix Mags, to prevent failure of impulse coupling due to improperly heat treated (soft) flyweights resulting in engine damage or failure
AD 86-13-04 - To prevent possible cylinder head to barrel separation
AD 87-14-02 - To prevent possible starter adapter shaftgear failure, which could result in loss of lubricating oil and subsequent complete loss of engine power
AD 88-03-06 - To prevent possible loss of engine oil and subsequent engine failure
AD 91-19-03 - To prevent operation with collapsed oil filter elements, which can result in loss of oil pressure, engine power loss or engine failure, and possible aircraft damage
AD 93-08-17 - To prevent an engine failure
AD 93-10-02 - To prevent an engine failure due to a missing cylinder valve retainer key
AD 94-06-09 - TCM (formerly Bendix) magnetos, to prevent injury or death to ground personnel due to a non-grounded magneto
AD 94-14-12 - To prevent detonation due to low octane
AD 95-21-15 - To prevent detonation due to low octane
AD 96-12-07 - TCM (formerly Bendix) magnetos, to prevent magneto failure and subsequent engine failure
AD 96-12-22 - To prevent loss of engine oil caused by loose or separated oil filter adapters, which could result in engine stoppage while in flight and loss of control of the airplane
AD 97-26-17 - To prevent crankshaft failure and subsequent engine failure
AD 98-01-08 - To prevent exhaust roller rocker arm failure
AD 98-17-11 - To prevent crankshaft failure due to cracking, which could result in an inflight engine failure and possible forced landing
AD 98-23-01 - To prevent failure of the primary dry air pump caused by defective flexible coupling, which could result in loss of primary attitude and direction references during instrument flight rules (IFR) operations
AD PL 98-23-01 - To prevent failure of the primary dry air pump caused by defective flexible coupling, which could result in loss of primary attitude and direction references during instrument flight rules (IFR) operations
AD 99-19-01 - To prevent crankshaft failure due to crankshaft cheek cracks.
AD 2000-08-51 - EMERGENCY AD - To prevent crankshaft failure due to crankshaft connecting rod journal fracture, which could result in total engine power loss, in- flight engine failure and possible forced landing
Propeller
AD 68-08-01 - To prevent failure of the propeller cylinder attach screws
AD 77-16-01 - To preclude the possibility of blade actuating pin failures
AD 91-15-04 - To prevent possible blade separation, which could result in the loss of the engine and subsequent loss of aircraft control
Paul M. Whetstone, President
Email pwhetstone@meyersaircraft.com
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