AD/RRT-S/9 - Transply Combustion Liners
1AD/RRT-S/9 - Transply Combustion Liners
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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 106 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Image unavailable in extracted text Rolls Royce Turbine Engines - Spey Series
AD/RRT-S/9 Transply Combustion Liners 7/86
Applicability: Spey Mk. 555 Series engines fitted with Mod 6012 or Mod 6123 combustors. Requirement: Replace Mod 6012 or Mod 6123 combustors in accordance with Rolls Royce SB Sp
72-1001.
Compliance: Not later than 3,500 hours combustor time since new.
Background: This Directive has been issued to require replacement of Transply combustion liners.
Rolls Royce advise, service experience with Mod. 6012 standard combustors indicates Transply combustors are experiencing circumferential cracking in the head and barrel sections. Service experience with boroscope inspection of Transply combustors has proven unsatisfactory, therefore a life limit of 3,500 hours is required.