The major reliability problems of the civil helicopter fleet as reported by helicopter operational and maintenance personnel are documented. An assessment of each problem is made to determine if the reliability can be improved by application of present technology or whether additional research and development are required. The reliability impact is measured in three ways: (1) The relative frequency of each problem in the fleet. (2) The relative on-aircraft manhours to repair, associated with each fleet problem. (3) The relative cost of repair materials or replacement parts associated with each fleet problem. The data reviewed covered the period of 1971 through 1976 and covered only turbine engine aircraft.

  • Corporate Authors:

    Boeing Vertol Company

    Surface Transportation Systems Department, P.O. Box 16858
    Philadelphia, PA  United States  19142
  • Authors:
    • Dougherty, J J
    • Barrett, L D
  • Publication Date: 1978-4

Media Info

  • Pagination: 114 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00181153
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: NASA-CR-145335
  • Contract Numbers: NAS1-13624
  • Files: TRIS
  • Created Date: Sep 14 1978 12:00AM