COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
AIRWORTHINESS DIRECTIVE
For the reasons set out in the background section, the CASA delegate whose signature appears below revokes Airworthiness Directive (AD) AD/BELL 407/15 and issues the following AD under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.
Bell Helicopter Textron Canada (BHTC) 407 Series Helicopters
AD/BELL 407/15
Amdt 1
Engine to Transmission Shaft 7/2002
Applicability: Bell 407 series helicopters, serial numbers 53000 through 53509 incorporating an engine to transmission drive shaft part number (P/N) 206-340-300-105.
Requirement: Replace drive shaft assembly P/N 206-340-300-105 in accordance with Bell Helicopter Textron Alert Service Bulletin (ASB) Number 407-01-45 Revision A.
Note: Transport Canada Airworthiness Directive CF-2002-03R2 refers.
Compliance: With a revised effective date of 11 July 2002; replace drive shaft assembly P/N 206- 340-300-105 in accordance with the compliance schedule detailed in Bell Helicopter Textron ASB 407-01-45 Revision A.
This amendment becomes effective on 11 July 2002.
Background: This Directive was originally issued to require a one time visual inspection of the engine to transmission drive shaft following reports of cracks being found in the shaft flex frame. This amendment provides a terminating action by requiring P/N 206-340- 300-105 shafts to be replaced with a P/N 206-340-300-107 drive shaft. The replacement shaft has an overhaul period of 1,250 hours and a life limit of 5,000 hours.
The original issue of this Airworthiness Directive became effective on 6 September 2001.
James Coyne
Delegate of the Civil Aviation Safety Authority 29 May 2002
The above AD is notified in the Commonwealth of Australia Gazette on 19 June 2002.
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