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

 Enstrom F-28 Series Helicopters

 AD Name AD Number

 Retirement Life - Critical Components AD/ENST 28/1 Amdt 5

 Stabilizer Spar Attachment AD/ENST 28/2 Amdt 2

 Cable Gauge/Circuit Protection Coordination - Modification AD/ENST 28/3

 Main Rotor Spindle - Inspection and Retirement - CANCELLED AD/ENST 28/4 Amdt 1

 Main Rotor Spindle - Inspection and Retirement - CANCELLED AD/ENST 28/5 Amdt 1

 Pre-Certification Requirements - Modifications AD/ENST 28/6

 Main Rotor Transmission Attachment Bolts - Inspection and Replacement AD/ENST 28/7 Amdt 1

 Fuselage Structure - Inspection AD/ENST 28/8

 Main Rotor Mast AD/ENST 28/9 Amdt 4

 Tail Cone Attachment Bolts - Inspection and Replacement AD/ENST 28/10

 Fuel Tank Vent - Modification AD/ENST 28/11

 Tail Rotor Pitch Link Safety Washer - Replacement AD/ENST 28/12

 Main Rotor Hub Retention Lock Washer - Replacement AD/ENST 28/13

 Upper Swashplate Bearing - Inspection and Lubrication AD/ENST 28/14 Amdt 1

 Tail Rotor Spindle and Drive Shaft - Inspection and Retirement AD/ENST 28/15 Amdt 2

 Tail Rotor Pitch Link Retainer and Guide Bolt - Replacement AD/ENST 28/16

 Wide Chord Tail Rotor Counterweights - Modification AD/ENST 28/17

 Alternator Field Cable Protection - Modification AD/ENST 28/18

 Fuel Strainer Drain Valve - Modification AD/ENST 28/19

 Mixture Control System Maintenance Checks and Modification AD/ENST 28/20

 Tail Rotor Blade Grip - Inspection and Modification AD/ENST 28/21

 Main Rotor Transmission Mount Bolts - Inspection AD/ENST 28/22

 RAJAY Turbocharger and Fuel Nozzle Vent Line - Modification AD/ENST 28/23

 Main Rotor Retention Assembly - Inspection AD/ENST 28/24

 Clutch Engagement Over Centre Lock Warning Light AD/ENST 28/25

 Tail Rotor Drive Shaft Couplings AD/ENST 28/26 Amdt 2

 Narrow Chord Tail Rotor Forged Grips - Inspection AD/ENST 28/27

 Clutch Engagement Handle Guard AD/ENST 28/28

 Rotor Head Hub AD/ENST 28/29

 Tail Rotor Spindle AD/ENST 28/30 Amdt 2

 Main Rotor Transmission Clutch Assembly AD/ENST 28/31

 Tail Rotor Gearbox AD/ENST 28/32 Amdt 1

 Tail Rotor Drive Flexible Couplings AD/ENST 28/33

 Main Rotor Shaft AD/ENST 28/34

 Inadvertent Trim Motor Operation AD/ENST 28/35

 Lamiflex Bearings AD/ENST 28/36

 Voltage Regulator AD/ENST 28/37

 Main Rotor Hub Plates AD/ENST 28/38