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
Hiller UH-12 Series Helicopters
AD Name AD Number
Main Rotor Blade - Inspection AD/HILLER 12/1
Main Rotor Blade Spar - Inspection AD/HILLER 12/2
Tail Rotor Blade Assembly - Provision of Vent Hole AD/HILLER 12/3
Main Transmission - Inspection - CANCELLED AD/HILLER 12/4
Main Rotor Transmission Lube System - Modification - CANCELLED AD/HILLER 12/5 Amdt 2
Superseded by AD/HILLER 12/11 AD/HILLER 12/6
Wobble Plate Screws - Replacement - CANCELLED AD/HILLER 12/7 Amdt 1
Main Rotor Blade Fork AD/HILLER 12/8 Amdt 3
Horizontal Stabiliser Spar - Inspection AD/HILLER 12/9 Amdt 1
Main Rotor Blades - Inspection and Modification AD/HILLER 12/10
Tail Rotor Blades - Replacement - CANCELLED AD/HILLER 12/11
Main Rotor Blades - Inspection AD/HILLER 12/12 Amdt 2
Transmission Gear - Inspection AD/HILLER 12/13 Amdt 2
Main Rotor Blade Attach Pin Nut - Modification - CANCELLED AD/HILLER 12/14
Mercury Clutch Sideplates - Inspection - CANCELLED AD/HILLER 12/15
Cyclic Pitch Control Bracket Attach Bolts and Inserts - Inspection and AD/HILLER 12/16
Control Rotor Blade Assemblies AD/HILLER 12/17 Amdt 4
Retirement Life - Critical Components AD/HILLER 12/18 Amdt 6
Main Rotor Blades - Inspection AD/HILLER 12/19
Mercury Clutch - Operational Limitations - CANCELLED AD/HILLER 12/20
Main Rotor Drag Strut - Inspection - CANCELLED AD/HILLER 12/21
Main Rotor Hub AD/HILLER 12/22 Amdt 3
Main Rotor Blade, Anti Node Weight Retention - Inspection AD/HILLER 12/23 Amdt 1
Main Rotor Blade Doubler & Honeycomb Areas AD/HILLER 12/24 Amdt 4
Control Rod End Bearings - Inspection - CANCELLED AD/HILLER 12/25
Rotor Tachometer Generator - Replacement AD/HILLER 12/26
Outer Gimbal Forward Attach Fitting - Inspection AD/HILLER 12/27 Amdt 2
Main Rotor Blade Anti-Node Bar - Inspection AD/HILLER 12/28
Main Drive Torsion Coupling - Inspection and Replacement AD/HILLER 12/29 Amdt 4
Main Rotor Assembly AD/HILLER 12/30 Amdt 2
Inspection of Lower Gearcase Oil Jets - Soloy Gas Turbine Conversion - AD/HILLER 12/31
Tail Rotor Control Balance Cable - Inspection - CANCELLED AD/HILLER 12/32
Tail Rotor Blade P/N 55073 - Inspection AD/HILLER 12/33
Main Transmission Oil Filter AD/HILLER 12/34 Amdt 1
Mercury Clutch Attach Bolts and Washers - Replacement - CANCELLED AD/HILLER 12/35 Amdt 1
Main Drive Torsion Coupling P/N 21047-15 - Inspection of Lower Plate AD/HILLER 12/36 Amdt 1
Soloy Conversion: Power Turbine Governor Control System - Modification AD/HILLER 12/37
Engine Mount Clevises AD/HILLER 12/38
Consolidation of Early Airworthiness Directives AD/HILLER 12/39
Main Rotor Assembly Drag Strut and T-T Bar Pin AD/HILLER 12/40 Amdt 2
Tail Rotor Blades AD/HILLER 12/41
Main Rotor Mast AD/HILLER 12/42
Control System Linkage AD/HILLER 12/43