Document ID: chunk:federal_register_of_legislation:F2006B06216:body:0:p2
Version: federal_register_of_legislation:F2006B06216
Segment Type: other
Provision Reference: 
Character Range: 2737–3446

AD/PHZL/54 against the daily inspection certification of the Maintenance Release. A copy of this Airworthiness Directive is to be kept in the aircraft.
 COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 107 CIVIL AVIATION SAFETY AUTHORITY
 SCHEDULE OF AIRWORTHINESS DIRECTIVES

           Background:  A recent after flight incident in which a blade was discovered with a crack across 67% of the chord has highlighted the need for a more critical inspection of hard alloy blades. The need for a more effective corrosion protection of this type blade is also required.

           The crack started at a small corrosion pit at the edge of the deice boot and moved rapidly across the blade.