PLAN FOR THE RELIABILITY AND MAINTAINABILITY EVALUATION OF THE DISCRETE ADDRESS BEACON SYSTEM (DABS) ENGINEERING LABORATORY MODELS

The primary objective of the reliability and maintainability evaluation of the DABS sensors is to ascertain any weak points or problem areas in the system design. These are evidenced by the occurrence of distinct or repetitive hardware failure patterns, as well as unusual difficulties encountered in diagnosing, isolating, and correcting these failures. A secondary objective is to obtain mean-time-between-failures (MTBF), mean downtime (MDT), and 90th percentile values of maximum corrective maintenance times for both the single-channel sensors being delivered and a theoretically constructed dual-channel sensor. These values would then be compared with the corresponding values specified in the engineering requirement (ER). Each sensor will be broken down for reliability purposes into over 200 individual reliability elements. A complete and comprehensive running account of the operational status, failure, and maintenance history of each of these reliability elements will be provided, by use of the Automated Reliability Assessment Program (ARAP), to be operated on the Honeywell computer. By further use of automated techniques, the MTBF, MDT, and maximum corrective maintenance times will be computed for both single- and dual-channel sensors. This paper provides a detailed description of the data collection and analysis procedures to be used in this evaluation, including the automated techniques and mathematical models employed in the analysis. (Author)

  • Corporate Authors:

    National Aviation Facilities Experimental Center

    Federal Aviation Administration
    Atlantic City, NJ  USA  08405
  • Authors:
    • Moss, A R
  • Publication Date: 1978-10

Media Info

  • Pagination: 89 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00190472
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: FAA-NA-78-31
  • Files: NTIS, TRIS, USDOT
  • Created Date: Mar 14 1979 12:00AM