COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Bell Helicopter Textron 412 Series Helicopters
AD/BELL 412/5
Amdt 1
Engine Fuel Switch - Inspection/Replacement 4/83
Applicability: Model 412 S/Nos. 33001 thru 33100.
Document: Bell Tech Bulletin No. 412-82-10 Rev. “A” dated 14th Dec. 1982.
Compliance: Within 25 hours time in service after 30 April 1983 unless previously accomplished. Background: Reports received indicate malfunctioning of certain date coded engine fuel switches,
resulting in the shutting off of the applicable engine fuel supply. This Directive is raised in issue following receipt of Revision “A” of the requirement document. The Directive is now applicable to additional serial numbered aircraft.