Accession Number : ADA329362

Title :   Air Vehicle Diagnostic System: CH-46 Aft Main Transmission Fault Diagnosis-Final Report.

Descriptive Note : Final rept.,

Corporate Author : NAVAL COMMAND CONTROL AND OCEAN SURVEILLANCE CENTER RDT AND E DIV SAN DIEGO CA

Personal Author(s) : Church, K. G. ; Kolesar, R. R. ; Phillips, M. E. ; Garrido, R. C.

PDF Url : ADA329362

Report Date : JUN 1997

Pagination or Media Count : 130

Abstract : The goal of the helicopter drive system condition monitoring component of the Air Vehicle Diagnostic System (AVDS) program is to develop technology that will facilitate transition to 'condition-based maintenance' (CBM) for these components. The specific system requirements as stated in the AVDS Execution Plan are as follows: (1) Detect and classify gearbox faults in real time in flight. (2) Cope with variations between gearboxes. (3) Perform diagnostics in a variety of flight regimes. (4) Reduce false-alarm rates. (5) Reduce maintenance costs and facilitate transition to CBM. This report describes the performance of a system developed by NRaD that meets these requirements.

Descriptors :   *DIAGNOSIS(GENERAL), *HELICOPTER ENGINES, *TRANSMISSIONS(MECHANICAL), AIRCRAFT MAINTENANCE, FALSE ALARMS, COSTS, INFLIGHT, GEARS, FAULTS.

Subject Categories : Helicopters
      Jet and Gas Turbine Engines

Distribution Statement : APPROVED FOR PUBLIC RELEASE