In-Service Ultrasonic Inspections for Turbine Engine, Life-Limited Rotating Parts

Details

• Corporate Creators:
  Aerospace Industries Association of America ; Aerospace Industries Association Civil Aviation Regulatory & Safety (CARS) Committee
• Corporate Contributors:
  United States. Department of Transportation. Federal Aviation Administration. Policy and Standards Division
• Subject/TRT Terms:
  Engineering Tolerances Engine Failure Inspection Life-limited Rotating Part Mechanical Failure Melt Anomaly Nickel Alloys Turbine Engines Ultrasonic Tests Uncontained
• Publication/ Report Number:
  DOT/FAA/TC-26/4
• DOI:
  https://doi.org/10.21949/xzac-av82
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Edition:
  Final Report
• Corporate Publisher:
  United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center
• Abstract:
  The aero gas turbine industry has collaborated with the Federal Aviation Administration (FAA) to study and provide guidance and make recommendations about the implementation of requirements for in-service, sub-surface inspections through the Aerospace Industries Association (AIA) team AIA A-18-004. Data from across a broad spectrum in the industry is needed for this work since the probability of an uncontained rotor event from any cause has proven to be extremely low. Following an uncontained event from a melt anomaly in a nickel high pressure turbine (HPT) disk in 2016, industry teams including this team, team AIA A-18-003, the AIA Jet Engine Nickel Consortium (JENQC), and the AIA Rotor Integrity Steering Committee (RISC) have collected data and considered ways to improve rotor damage tolerance through improvements in inspection technologies, melting and manufacturing practices, and part design and lifing. This report documents the data collected and the findings from the evaluation of in-service inspections. The inspection guidance and recommendations provided here are considered as part of a larger critical part damage tolerance strategy. A comprehensive damage tolerance strategy considers the part manufacture, service management, and engineering design characteristics in order to minimize threats.
• Format:
  PDF
• Collection(s):
  FAA Technical Library
• Main Document Checksum:
  urn:sha-512:1c20d5e906433d4c5aada537bd336a041f3538e899d89631ad7055d180dd300a50c6c5cfe4d90fc4f62ce8f8990c6856348964da2b870e7f723b5b8563319d71
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/88725/dot_88725_DS1.pdf
• File Type:
  [PDF - 3.28 MB ]