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 Allison Turbine Engines - 250 Series AD Name AD Number Life Limited Components - CANCELLED AD/AL 250/1 Amdt 12 Compressor Front Bearing Thrust Washer and Spring - Replacement AD/AL 250/2 Oil Filter By-Pass Valve Poppet Guide - Replacement AD/AL 250/3 Sixth Stage Compressor Blades - Modification AD/AL 250/4 Engine Compressor - Modifications AD/AL 250/5 Amdt 1 Power Turbine Governor - Modification AD/AL 250/6 Amdt 1 CANCELLED AD/AL 250/7 Helical Power Train Drive Gear Internal Spline Inspection AD/AL 250/8 Amdt 1 Engine Operating Restrictions to Reduce Torque-Meter Shaftgears Stress AD/AL 250/9 CANCELLED AD/AL 250/10 Engine Improvement - Introduction of Blue Ribbon Modifications AD/AL 250/11 Amdt 3 Pc Filter Flanged Insert - Inspection AD/AL 250/12 Amdt 2 Improved Indicating Magnetic Drain Plugs - Introduction AD/AL 250/13 Compressor Wheels, Glass Bead Peening AD/AL 250/14 Engine Parts - Time Limitations - CANCELLED AD/AL 250/15 Amdt 9 Ceco Fuel Control and Governor External Plug and Lever - Replacement AD/AL 250/16 Life Limited Components - CANCELLED AD/AL 250/17 Amdt 5 Compressor Bleed Valve Orifice - Installation AD/AL 250/18 Fuel System - Power Turbine Governor to Control Fuel Tube Clamp - Installation AD/AL 250/19 Fuel Pump Drive Shaft - Inspection AD/AL 250/20 Amdt 1 Ceco F.C.U. Throttle Shaft and Governor Quadrant and Shaft Assembly - AD/AL 250/21 CANCELLED AD/AL 250/22 Engine Parts - Time Limitations - CANCELLED AD/AL 250/23 Amdt 3 Life Limited Components - CANCELLED AD/AL 250/24 Amdt 5 Power Turbine Outer Coupling Nut - Inspection AD/AL 250/25 Amdt 1 Third Stage Turbine Wheel Replacement - CANCELLED AD/AL 250/26 Amdt 1 Compressor Bleed Valve Strainer - Installation AD/AL 250/27 N1 and N2 Operating Restrictions and Placard Installation - CANCELLED AD/AL 250/28 Amdt 1 CANCELLED AD/AL 250/29 Amdt 1 Fuel System - Fuel Pump to Control and Fuel Control to Pump By-Pass Tube AD/AL 250/30 Fuel System - Check Valve Assembly - Installation AD/AL 250/31 Engine Fuel and Control, Electrical Harness - Replacement AD/AL 250/32 Fourth Stage Compressor Wheel - Retirement AD/AL 250/33 N2 Overspeed Protection: De-Activation and Replacement - CANCELLED AD/AL 250/34 Life Limited Components - CANCELLED AD/AL 250/35 Amdt 2 Life Limited Components - CANCELLED AD/AL 250/36 Amdt 4 Third Stage Turbine Wheel - Replacement AD/AL 250/37 Idler Gearshafts - Replacement AD/AL 250/38 Cancelled AD/AL 250/39 Third Stage Turbine Wheel - Overheat and Replacement - CANCELLED AD/AL 250/40 Amdt 1 Third Stage Turbine Wheel - Inspection and RPM Operational Restrictions AD/AL 250/41 Amdt 5 CANCELLED AD/AL 250/42 Second Stage Turbine Nozzle AD/AL 250/43 Amdt 3 Turbine Support and Exhaust Collector Flow Divider Cracking - CANCELLED AD/AL 250/44 Amdt 1 Power Turbine Inner and Outer Coupling Shaft - Replacement AD/AL 250/45 Power Turbine Governor (Bendix) - Inspection of Drive Shaft AD/AL 250/46 Amdt 1 First Stage Turbine Wheel P/N 6853306 - Replacement AD/AL 250/47 Fourth Stage Turbine Nozzle P/N 6898694 - Inspection AD/AL 250/48 Amdt 3 N2 Overspeed Control System - Disarming AD/AL 250/49 N2 Overspeed Control Assembly - Addition of Lockwashers to Ground Jumper AD/AL 250/50 Amdt 1 High Pressure Fuel Control Filter Assembly - Modification AD/AL 250/51 Amdt 1 Engine Fuel and Control - Bendix Fuel Control Assemblies and Power Turbine AD/AL 250/52 Amdt 1 Compressor Mount Assembly AD/AL 250/53 Amdt 1 Engine Turbine Assembly No. 8 Bearing U-Ring Installation AD/AL 250/54 Amdt 1 Gas Producer Rotor Assembly - Tie Bolt P/N 6843388, 6876991 and 6889320 AD/AL 250/55 Amdt 3 Engine Quick Disconnect Magnetic Plugs - Inspection of Lockpins and Slots for AD/AL 250/56 Amdt 1 Turbine Shaft - Inspection - CANCELLED AD/AL 250/57 Gearbox Assembly - PTO Helical Gearshaft Assembly - Replacement AD/AL 250/58 Amdt 2 Outer Combustion Case Assemblies P/N 6899237 and 23009569 AD/AL 250/59 Amdt 3 NI Shafting - Inspection - CANCELLED AD/AL 250/60 Amdt 2 Gas Producer Turbine Assembly and Second Stage Nozzle Seal AD/AL 250/61 Amdt 3 Fourth Stage Nozzle Assembly - Replacement AD/AL 250/62 Amdt 1 Turbine to Compressor Coupling Shaft Inspection and Modifications to Prevent AD/AL 250/63 Amdt 7 Internal Energy Absorbing Ring AD/AL 250/64 Amdt 3 Engine Power and Accessory Gearbox - New Magnetic Plug Introduction AD/AL 250/65 Second Stage Turbine Wheel AD/AL 250/66 Amdt 2 Increased Labyrinth Seal Clearance Second Stage Turbine Nozzle AD/AL 250/67 Amdt 1 Turbine to Compressor Coupling Shaft Inspection and Modifications to Prevent AD/AL 250/68 Amdt 2 Installation of Internal Energy Absorbing Ring AD/AL 250/69 No. 8 Bearing Scavenge Line Air/Oil Separator AD/AL 250/70 Turbine Splined Adapter Locknut Torque AD/AL 250/71 No. 8 Bearing Oil Supply Tube AD/AL 250/72 Amdt 1 Bendix Power Turbine Governor AD/AL 250/73 Amdt 2 Life Limited Components - CANCELLED AD/AL 250/74 Life Limited Components - CANCELLED AD/AL 250/75 Falcon Helicopters AD/AL 250/76 Third Stage Turbine Wheel P/N 23001977 AD/AL 250/77 Superior Turbine Bearings AD/AL 250/78 Fuel Control Bellows Replacement AD/AL 250/79 Gearbox - Torquemeter Gearshaft Assembly AD/AL 250/80 Amdt 1 Third Stage Turbine Wheels AD/AL 250/81 Hydromechanical Unit Power Lever Angle Potentiometer AD/AL 250/82 Third-Stage Turbine Wheels AD/AL 250/83