COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Robin Aviation Series Aeroplanes
AD/ROBIN/29 Hydraulic Lines 11/96
Applicability: All HR 100/250 and HR 100/285 series aircraft fitted with retractable landing gear.
Requirement: Replace the inlet and outlet pipes of the Retractable Gear (R/G) hydraulic pump as required by Avions Pierre Robin SB No 148 dated April 26, 1996.
Note: DGAC AD 96-147(A) refers.
Compliance: Unless previously carried out, at the next scheduled aircraft maintenance inspection and thereafter, at every second disassembly of the pipes.
Background: The manufacturer has advised that frequent removal and re-tightening of the tube fitting nuts located at the end of the fluid pipes has resulted in cracking of the tubing flares.