AD/JT9D/14 Amdt 1 - Diffuser Case Rear Rail Cracking
1AD/JT9D/14 Amdt 1 - Diffuser Case Rear Rail Cracking
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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 Pratt and Whitney Turbine Engines - JT9D Series
AD/JT9D/14
Amdt 1
Diffuser Case Rear Rail Cracking 6/93
Applicability: JT9D-7, 7A, -7H, -7AH, -7F, -7J.
Requirement: Inspect the diffuser case rear rail for cracking in accordance with Pratt and Whitney Service Bulletin 5591 Revision 7.
Note: FAA AD 86-11-04 refers.
Compliance: Effective 27 May 1993: As detailed in the requirement document.
Background: This Directive has been amended to reflect the manufacturer's latest revision to the requirement document. The revision, in part, introduces a new Eddy Current Inspection (ECI) probe and reduced inspection intervals for diffuser cases with weld repairs in certain locations and various crack lengths.