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
Twin Commander (Gulfstream/Rockwell/ Aerocommander 500, 600 and 700)
Series Aeroplanes
AD Name AD Number
Wing Rib - Reinforcement AD/AC/1
Augmentor Tubes - Installation of New Type Supports AD/AC/2
Aileron Bellcrank Castings at Wing Station 196 - Replacement AD/AC/3
Main Landing Gear Upper Retaining Pins - Replacement AD/AC/4
Landing Gear Selector Valve - Removal of AN 6207 Check Valve AD/AC/5
Fuel Vent and Vapour Return Lines - Modification AD/AC/6
Rudder Torque Tube - Inspection AD/AC/7
Power Brake Valve - Modification AD/AC/8
Vertical and Horizontal Stabiliser - Spar Reinforcement AD/AC/9
Fuel Line Routing - Modification AD/AC/10
Flap Pulley Assembly Right Inboard Station 13.625 - Modification AD/AC/11
Horizontal Stabiliser - Modification AD/AC/12
Hydraulic and Engine Oil S/O Valve Circuit Breaker - Insulation AD/AC/13
Clear Vinyl Covers in Cabin Interior - Removal AD/AC/14
Centre Wing - Rear Spar Reinforcement AD/AC/15
Baggage Compartment and Rear Cabin Areas - Corrosion Inspection and AD/AC/16
Landing Gear Truss Attach Angle - Inspection AD/AC/17 A
Battery Relay Terminal - Insulation AD/AC/18
Throttle Control Rod Ends - Inspection and Replacement AD/AC/19
Rudder Trim Tab Hinge Mount - Inspection AD/AC/20
CANCELLED AD/AC/21
Induction Air Control Valves and Mounting Shafts - Replacement AD/AC/22
Main Landing Gear Struts - Inspection and Modification AD/AC/23
Fuel Pressure Gauge Vent Drain - Installation AD/AC/24
Circuit Breaker Panel - Insulator Inspection AD/AC/25
Elevator Torque Tube - Inspection and Modification AD/AC/26
Main Landing Gear Actuating Cylinder Body - Inspection AD/AC/27
Main Landing Gear Truss - Inspection AD/AC/28
Fuel Sump Casting P/N 4630068 - Inspection AD/AC/29 Amdt 2
Replacement of Fuel System Aluminium Drain Tubing and Fittings and Wing AD/AC/30
CANCELLED AD/AC/31 Amdt 4
Aileron Cable Drum Cable Retainer - Modification AD/AC/32
CANCELLED AD/AC/33 Amdt 1
Main Landing Gear Upper Bearing - Modification AD/AC/34
Rudder Torque Tube - Modification AD/AC/35
Wing Front Spar Lower Cap - Inspection AD/AC/36 Amdt 2
Cockpit Windows - Modification AD/AC/37
Emergency Exit Latch - Inspection AD/AC/38
Wing Front Spar Lower Cap - Inspection AD/AC/39
Engine Mount Yoke - Inspection AD/AC/40
Nose Gear Support Structure - Inspection AD/AC/41
Wing Main Spar Lower Cap W.S. 24 AD/AC/42 Amdt 7
Elevator Servo Cable Guard Plate - Installation AD/AC/43
Engine Tailpipe Assemblies - Inspection and/or Replacement AD/AC/44
Nose Wheel Tyre - Inspection and Replacement AD/AC/45
Separation of Electrical Wiring from Fuel Line AD/AC/46
Front Seat Restraint Installation - Modification AD/AC/47
Rudder Control Balance - Inspection AD/AC/48
Wing Main Spar - Inspection AD/AC/49
Unfeathering Pump Supply Line - Replacement AD/AC/50
Cabin Differential Pressure Limitations AD/AC/51
Pilot Compartment Side Windows - Replacement AD/AC/52
Pressurised Cabin Structure - Inspection and Modification AD/AC/53
Aileron Trim Tab - Inspection and Repair AD/AC/54
CANCELLED AD/AC/55
Elevator Control System Bob Weight Installation - Inspection and Modification AD/AC/56 Amdt 3
Pre-Certification Requirements - Modifications AD/AC/57
Elevator Control System Bob Weight Installation - Inspection and Modification - AD/AC/58 Amdt 2
Flap System - Flap Control Bracket - Inspection and Modification AD/AC/59 Amdt 1
Aft Facing Seats - Placard - Installations AD/AC/60
Elevator Trim Sprocket Assembly - Inspection and Modification AD/AC/61 Amdt 1
Forward and Aft Inboard Wing Spar Cap Rivets - Inspection and Replacement AD/AC/62
Electric Elevator Trim Speed - Modification AD/AC/63
Fatigue Life Limitation - Pressurised Fuselage AD/AC/64
Wing Spar Fillet Screws - Inspection and Replacement AD/AC/65
Wing Fatigue Life Limitation AD/AC/66 Amdt 8
Goodyear Fuel Cells - Inspection AD/AC/67
Elevator Bungee Springs - Inspection AD/AC/68
Main Landing Gear Torque Link Pin Retaining Bolt - Inspection AD/AC/69
Engine Oil Breather Line - Modification AD/AC/70
Aft Engine Mount Attachment - Inspection AD/AC/71
Main Cabin Door Bayonet Rigging - Inspection AD/AC/72
Wing Fasteners - Modification AD/AC/73
Fairleads On Aft Fuselage Frames - Installation AD/AC/74 Amdt 2
Main Cabin Door Fasteners - Inspection AD/AC/75
Engine Control Cables, Jam Nuts - Modification AD/AC/76
Induction Air Elbow Duct - Replacement, Exhaust System - Inspection AD/AC/77
Flight Control Chain Connector Link - Inspection AD/AC/78
Rudder Control Cable Fraying AD/AC/79 Amdt 2
Aileron Leading Edge Skin - Modification AD/AC/80 Amdt 1
Elevator Trim Tab AD/AC/81 Amdt 1
Engine Isolator Assembly- Inspection and/or Replacement AD/AC/82
Corrosion of Wing Lower Spar Cap AD/AC/83 Amdt 8
Empennage Attachment AD/AC/84 Amdt 1
Flight in Icing Conditions AD/AC/85 Amdt 1
Wing Main Spar Lower Cap Microstructure AD/AC/86 Amdt 1
Wing Main Spar Steel Strap Corrosion AD/AC/87
Flap System AD/AC/88 Amdt 1
Aileron Control System - CANCELLED AD/AC/89
Wing Station 39 Wing Ribs AD/AC/90
Wing - Main Spar Lower Cap Forward Flange at Wing Station 96 AD/AC/91
Wing Skin Near Main Landing Gear AD/AC/92
Wing to Fuselage Attachment AD/AC/93 Amdt 1
Airspeed in Turbulence AD/AC/94
Bleed Air System Leak Check AD/AC/95
Nose Landing Gear Bolt AD/AC/96 Amdt 1
Aircraft Flight Manual, Flight into Icing Conditions AD/AC/97
Operation of Deicing Boots AD/AC/98
Wing and Fuselage Structure AD/AC/99