THE USE OF PROBABILITY ANALYSIS IN AIRCRAFT CERTIFICATION AND ITS EFFECTS ON MAINTENANCE AND EQUIPMENT RELIABILITY

This article outlines the procedures, particularly the use of numerical probability analysis, which the Federal Aviation Administration expects to use in finding compliance with Federal Aviation Regulation (FAR) 25.1309 as amended by Amendment 25-23. A new draft of the "Systems Design Analysis" Advisory Circular is also reviewed. If a numerical probability analysis is used to show that an airplane or system complies with airworthiness standards due to the low probability of occurrence of failures which can jeopardize flight safety, then a certain level of equipment reliability and maintenance must be defined to assure the continued airworthiness of the installation. With current technology, it will usually be necessary to conduct periodic inspections of critical components and to monitor their reliability in order to maintain this level of safety after the airplane is in service. A numerical probability analysis has been used in several recent certification projects, such as the automatic landing systems for the Boeing Model 747, Lockheed Model L-1011, and the MCDonnell Douglas Model 747 Automatic Ground Rollout System and the Boeing Model 727 Automatic Performance Reserve System. /Author/

  • Corporate Authors:

    Wallace Research Cen, Embry-Riddle Aeronautl Univ

    Regional Airport
    Daytona Beach, FL  United States  32014
  • Authors:
    • Treacy, J J
  • Publication Date: 1978-8

Media Info

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Filing Info

  • Accession Number: 00196329
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Aug 15 1979 12:00AM