Accession Number:

ADA061405

Title:

Plan for the Reliability and Maintainability Evaluation of the Discrete Address Beacon System (DABS) Engineering Laboratory Models,

Descriptive Note:

Corporate Author:

NATIONAL AVIATION FACILITIES EXPERIMENTAL CENTER ATLANTIC CITY N J

Personal Author(s):

Report Date:

1978-10-01

Pagination or Media Count:

89.0

Abstract:

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

Subject Categories:

  • Air Navigation and Guidance
  • Active and Passive Radar Detection and Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE