Airworthiness Directives 2004
I, DAVID ALAN VILLIERS, delegate of the Civil Aviation Safety
Authority, acting under subregulation 39.001 (1) of the Civil
Aviation Safety Regulations 1998:
(a) revoke the Airworthiness Directives mentioned in
Schedule 1; and
(b) make, as separate instruments, each Airworthiness
Directive mentioned in Schedule 1 and attached.
David Villiers
Delegate of the Civil Aviation Safety Authority
20 December 2004
Note: Each attached Airworthiness Directive is being re-made in exactly the
same form as appears in the latest published edition of the Directive.
Schedule 1 Revocation and Remaking of
Airworthiness Directives
Lycoming Piston Engines
AD Name AD Number
Centre Main Through Studs Re-Torqueing - CANCELLED AD/LYC/1 Amdt 1
Cast Counterweight - Replacement - CANCELLED AD/LYC/2
Intercylinder Baffle Clamps - Replacement or Modification AD/LYC/3
Cylinder Head P/N 73114 - Cracking - CANCELLED AD/LYC/4 Amdt 1
Piston P/N 71594 - Replacement - CANCELLED AD/LYC/5
Installation of Modified Hydraulic Tappet Body and Plunger Assemblies - AD/LYC/6 Amdt 2
Propeller Shaft Oil Seal Ring - Inspection and Modification - CANCELLED AD/LYC/7
Exhaust Valve Guide - Inspection - CANCELLED AD/LYC/8 Amdt 1
Intake Hose Clamps - Replacement - CANCELLED AD/LYC/9
Superseded by AD/LYC/15 - CANCELLED AD/LYC/10
Oil Pump Drive Shaft - Inspection and Replacement - CANCELLED AD/LYC/11
Crankshaft Counterweight Bushings - Inspection and Replacement - AD/LYC/12 Amdt 2
Magneto Drive Gear Cushion Retainer - Replacement - CANCELLED AD/LYC/13
Fuel and Oil Vent Restriction For A.C Lightweight Diaphragm Fuel Pumps - AD/LYC/14
Connecting Rod - Replacement - CANCELLED AD/LYC/15 Amdt 4
Crankshaft Propeller Flange - Inspection - CANCELLED AD/LYC/16
Diaphragm - Fuel Injector Modification - CANCELLED AD/LYC/17 Amdt 2
Connecting Rods - Replacement - CANCELLED AD/LYC/18
Magneto Rotor Shaft Nut - Inspection - CANCELLED AD/LYC/19 Amdt 1
Crankshaft Idler Gear Shafts - Replacement - CANCELLED AD/LYC/20
AC Oil Filter Adapter Gasket - Replacement - CANCELLED AD/LYC/21
Connecting Rod Bolt - Replacement - CANCELLED AD/LYC/22
Supercharger Air Inlet Housing Assembly Inspection - CANCELLED AD/LYC/23
Increased Torque for Connecting Rod Bolt P/N 74644 - CANCELLED AD/LYC/24
Reduction Gear Assembly - Inspection and Modification - CANCELLED AD/LYC/25
Turbine Housing - Inspection - CANCELLED AD/LYC/26
Fuel Line Heat Shield - Inspection - CANCELLED AD/LYC/27
Main Bearing Retention and Oil Filter - Inspection - CANCELLED AD/LYC/28 Amdt 2
Exhaust Manifold Couplings - Replacement - CANCELLED AD/LYC/29
Carburettor Throttle Arm Screw - Retorque and Locking - CANCELLED AD/LYC/30
Fuel Line - Inspection and Clamp Installation - CANCELLED AD/LYC/31 Amdt 1
Crankcase Bearing Dowel - CANCELLED AD/LYC/32 Amdt 2
Crankcase Bearing Dowel - Replacement - CANCELLED AD/LYC/33 Amdt 1
Limited Travel Valve Lifter - Replacement - CANCELLED AD/LYC/34
Cylinder Assemblies - Life Limits - CANCELLED AD/LYC/35 Amdt 1
Turbocharger Exhaust System - Inspection and Modification - CANCELLED AD/LYC/36
Mandatory Replacement of Parts During Reconditioning - CANCELLED AD/LYC/37 Amdt 6
7/16 inch Exhaust Valves and Guides - Retirement - CANCELLED AD/LYC/38
Crankshaft Counterweight - Inspection and Replacement - CANCELLED AD/LYC/39
Fuel Line - Inspection and Clamp Installation - CANCELLED AD/LYC/40
Connecting Rod - Replacement - CANCELLED AD/LYC/41
Turbocharger Housing - Inspection and Replacement - CANCELLED AD/LYC/42
Turbocharger Oil Line Reducer Bushing - Replacement - CANCELLED AD/LYC/43
Oil Pressure Filter - Inspection and Cover Modification - CANCELLED AD/LYC/44 Amdt 1
Connecting Rod - Inspection - CANCELLED AD/LYC/45 Amdt 2
Piston Pin P/N 69650 - Inspection - CANCELLED AD/LYC/46 Amdt 4
Turbocharger Density Controller - CANCELLED AD/LYC/47 Amdt 5
Connecting Rod High Tensile Bolts and High- Crush Bearings - Introduction - AD/LYC/48
CANCELLED - AD/LYC/73 refers. - CANCELLED AD/LYC/49 Amdt 2
Strengthened Connecting Rod Bolt - CANCELLED AD/LYC/50
Fuel Flow Divider Gasket - Inspection and/or Replacement - CANCELLED AD/LYC/51
Wastegate Valve Housing - Inspection - CANCELLED AD/LYC/52
Turbocharger - Modification - CANCELLED AD/LYC/53
Turbine Housing - Inspection - CANCELLED AD/LYC/54
Tappet Body - Inspection and Replacement - CANCELLED AD/LYC/55
Valve Rocker Arm Retaining Stud - Replacement - CANCELLED AD/LYC/56 Amdt 2
Connecting Rod Cap and Bolt - Modification and Torque Increase - CANCELLED AD/LYC/57
Crankshaft Replacement - CANCELLED AD/LYC/58 Amdt 1
Oil Pump - Inspection and Gear Replacement - CANCELLED AD/LYC/59
Hydraulic Tappet Replacement - CANCELLED AD/LYC/60
Fuel Pump to Fuel Injector Line - Replacement - CANCELLED AD/LYC/61
Fuel Injector Bellows Type Body Seal - Replacement - CANCELLED AD/LYC/62
Fuel Injector Diaphragm Part Number 2529471 - Inspection - CANCELLED AD/LYC/63 Amdt 1
Carburettor Economiser Channel - Fitment of Brass Plug - CANCELLED AD/LYC/64
Fuel Injector Diaphragm Part Number 2529293 - Inspection - CANCELLED AD/LYC/65
Turbocharger Oil Drain Flange - Replacement - CANCELLED AD/LYC/66
Upper Exhaust Valve Spring Retainer - Inspection - CANCELLED AD/LYC/67
Crankshaft Flange Bolts - Replacement and Torque - CANCELLED AD/LYC/68
Upper Exhaust Spring Seat and Hydraulic Lifter - Replacement - CANCELLED AD/LYC/69
Exhaust Valve Inspection - Helicopter Engines - CANCELLED AD/LYC/70
Pushrod - Inspection AD/LYC/71 Amdt 1
Turbocharger Inspection and Plumbing Replacement - CANCELLED AD/LYC/72
Oil Pump Impellers - Replacement - CANCELLED AD/LYC/73 Amdt 2
Oil Pump Impellers - Replacement - CANCELLED AD/LYC/74
Crankshaft Re-Nitriding - CANCELLED AD/LYC/75
Propeller Attachment Flange AD/LYC/76 Amdt 6
Bendix Fuel Injection System, Diaphragm Type-Inspection - CANCELLED AD/LYC/77 Amdt 2
Thermostatic Oil Cooler Bypass Valve AD/LYC/78 Amdt 5
Cylinder Assembly - CANCELLED AD/LYC/79 Amdt 1
Turbocharger Oil Inlet Adaptor Bushing AD/LYC/80
Oil Pump Impellers AD/LYC/81 Amdt 3
Cylinder Base Stud/Through Bolt Nut Torque - CANCELLED AD/LYC/82
Crankshaft Flange AD/LYC/83
Engine Driven Fuel Pump - CANCELLED AD/LYC/84
Exhaust Assembly AD/LYC/85 Amdt 1
Propeller Governor Oil Line AD/LYC/86 Amdt 2
Challenger Engineering Chrome Plated Cylinder Barrels AD/LYC/87
Weld Repair Crankcase Inspection - CANCELLED AD/LYC/88
Crankshaft Gear AD/LYC/89 Amdt 3
Fuel Injection Supply Lines AD/LYC/90
Crankshaft Removal/Inspection AD/LYC/91
Mandatory Replacement of Parts - CANCELLED AD/LYC/92
Connecting Rods - CANCELLED AD/LYC/93
ro Accessories Inc. Engine Driven Fuel Pumps - CANCELLED AD/LYC/94
Turbocharger Density Controller Adjustment AD/LYC/95
Unapproved Camshaft Repairs AD/LYC/96
Connecting Rod Bolt Inspection AD/LYC/97
Push Rod Inner Diameter Scoring AD/LYC/98
Diaphragm Fuel Pumps AD/LYC/99
Piston Pin P/N LW-14077 AD/LYC/100
Superior Cylinders AD/LYC/101 Amdt 1
Crankshaft Internal Inspection AD/LYC/102 Amdt 2
Slick Magneto Inspection AD/LYC/103
Crankshaft Drive Gear Bolts AD/LYC/104
Oil Filter Converter Plate Gasket AD/LYC/105 Amdt 1
RYCO R14 Oil Filters AD/LYC/106
Crankshaft Replacement AD/LYC/107 Amdt 2
Crankshaft Material Inspection AD/LYC/108
Crankshaft Gear Bolt AD/LYC/109 Amdt 2