Accession Number : AD0739568
Title : CH-47A, B and C Series Helicopter Rotor Blade Failure and Scrap Rate Data Analysis.
Descriptive Note : Final rept.,
Corporate Author : BOEING CO PHILADELPHIA PA VERTOL DIV
Personal Author(s) : Hunt,R. L.
Report Date : NOV 1971
Pagination or Media Count : 119
Abstract : The report provides the results of an analysis of failure data derived from depot inspection, overhaul/rework, and scrappage reports on 5,488 rotor blades of the CH-47 series tandem rotor helicopters. Two types of rotor blades were analyzed for blade mean-time-between-removals, mean-time-to-removals, mean-time-between-unscheduled-removals and mean-time-between-scrappage. Locations on these blades for the major discrepancies were determined. Blade teardown experience was determined. A cost comparison of blade acquisition costs versus the average cost of repair/rework was provided. (Author)
Descriptors : (*ROTOR BLADES(ROTARY WINGS), FAILURE(MECHANICS)), (*MAINTENANCE, ROTOR BLADES(ROTARY WINGS)), HELICOPTERS, MAINTAINABILITY, STATISTICAL ANALYSIS
Subject Categories : Helicopters
Distribution Statement : APPROVED FOR PUBLIC RELEASE