COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Eurocopter AS 355 (Twin Ecureuil) Series Helicopters
AD/AS 355/18 Main Rotor Sleeve Beams 4/86 TX
Applicability: All Model AS 355.
Requirement: Inspect main rotor sleeve beams in accordance with Aerospatiale Telex Service Bulletin 01.12.
Compliance: Before the next flight following discovery of a sudden or repetitive blade tracking problem.
Background: The manufacturer reports cracking in the blade attachment area of the main rotor sleeve beams.