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
Pratt and Whitney Turbine Engines - JT9D Series
AD Name AD Number
Life Limits - Engine Rotating Parts - CANCELLED AD/JT9D/1 Amdt 1
Life Limits - Engine Rotating Parts - CANCELLED AD/JT9D/2 Amdt 1
Diffuser Case AD/JT9D/3
Incorporation of Main Gearbox Spray Nozzles AD/JT9D/4
Replacement of Main Gearbox Assembly Face Seals AD/JT9D/5
Engine Tailpipe/Exhaust Case - Inspection for Oil Leakage AD/JT9D/6
No. 3 Bearing Breather Temp Check and Replacement of Main Bearing Breather AD/JT9D/7
Fan Blade - Inspection and Blending AD/JT9D/8
Fifth Stage Turbine Hubs - Reduction of Cyclic Life AD/JT9D/9
Main Gearbox Assembly - Magnetic Plug Inspection AD/JT9D/10
No. 4 Bearing Compartment AD/JT9D/11
Fifteenth Stage Compressor Discs AD/JT9D/12 Amdt 1
Low Pressure Turbine Anti-Rotation Pins AD/JT9D/13 Amdt 3
Diffuser Case Rear Rail Cracking AD/JT9D/14 Amdt 1
High Pressure Turbine Airseal AD/JT9D/15
HPC Variable Stator Synchronising Ring Runner Clearance AD/JT9D/16
Fan Containment Shield AD/JT9D/17 Amdt 2
Low Pressure Turbine Airseal AD/JT9D/18
Surge Margin Improvements AD/JT9D/19 Amdt 2
Diffuser Case Strut Inserts AD/JT9D/20
Drain Tube Replacement AD/JT9D/21
First Stage High Pressure Turbine Airseal AD/JT9D/22
First Stage High Pressure Turbine Airseal AD/JT9D/23
HPC Turbine Drive Shafts AD/JT9D/24
Fan Blade Inspection/Revised Shroud Angle AD/JT9D/25
Diffuser Case Inspection AD/JT9D/26
Fan Exit Case Cover Modification AD/JT9D/27
LPT Vane Hardware AD/JT9D/28
Turbine Exhaust Case AD/JT9D/29 Amdt 2
First Stage High Pressure Turbine Disk AD/JT9D/30
14th and 15th Stage HPC Disks AD/JT9D/31 Amdt 1
Combustion Chamber Outer Casing AD/JT9D/32
Diffuser Case Inspection AD/JT9D/33
Inspection of Critical Life-limited Rotating Engine Components - CANCELLED AD/JT9D/34
HPT Disc Inspection AD/JT9D/35
LPT 5th Stage Disc - Inspection AD/JT9D/36
Inspection of Life Limited Parts AD/JT9D/37
High pressure Turbine Disc - Inspection AD/JT9D/38
One-Piece Fan Case Shield AD/JT9D/39