Accession Number : AD0775449

Title :   Major Item Special Study (MISS), CH-47A Hudraulic Servocylinder.

Descriptive Note : Interim rept. 1 Jan 64-1 Jul 73.

Corporate Author : ARMY AVIATION SYSTEMS COMMAND ST LOUIS MO

Report Date : FEB 1974

Pagination or Media Count : 21

Abstract : Major Item Special Study (MISS) reports are performed on DA Form 2410 reportable components. These are time change in items and certain condition change items selected because of high cost or need for intensive management. Basically, the MISS reports are concerned with analyzing reported removal data presented in the Major Item Removal Frequency report. The failure modes reported for each removal are examined and grouped into categories which are intended to clarify the intent of the data reporting. From the data, removal distributions can be plotted and an MTR (mean time to removal) can be calculated. The MISS reports then investigate possible cost savings based on total elimination of selected failure modes. These modes are chosen because of the percentage of failures they represent and/or because they appear to be feasible Product Improvement Program areas. (Author)

Descriptors :   *Helicopters, *Hydraulic cylinders, *Value engineering, Logistics support, Quality control, Spare parts, Maintainability, Cost analysis, Failure

Subject Categories : Helicopters
      Mfg & Industrial Eng & Control of Product Sys

Distribution Statement : APPROVED FOR PUBLIC RELEASE