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SUP-Related Advisory Circulars

  • Detecting and Reporting Suspected Unapproved Parts, AC 21-29
  • Eligibility and Evaluation of U.S. Military Surplus Flight Critical Aircraft Parts, Engines, and Propellers, AC 20-142
  • Eligibility, Quality, and Identification of Approved Aeronautical Replacement Parts, AC 20-62
  • Voluntary Disclosure reporting Program, AC 00-58

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