Abstract #301222

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JSM 2002 Abstract #301222
Activity Number: 150
Type: Contributed
Date/Time: Monday, August 12, 2002 : 2:00 PM to 3:50 PM
Sponsor: Section on Physical & Engineering Sciences*
Abstract - #301222
Title: Aging Aircraft: Evidence From Unscheduled Landings
Author(s): Leonard MacLean*+ and Alex Richman and Stig Larsson
Affiliation(s): Dalhousie University and AlgoPlus Consulting and Dalhousie University
Address: 6152 Coburg Road, Halifax, Nova Scotia, B3H 1Z5, Canada
Keywords:
Abstract:

An important and sometimes controversial issue in airline safety is the aging of aircraft in the carrier fleet. It is expected that mechanical systems degenerate with age and use, but periodic repair is intended to maintain aircraft at a reliable functioning level. In this paper, the schedule reliability of aircraft in North America is analyzed from records on unscheduled landings. The hazard rate is modelled from data on time between events. The rate is related to age of aircraft, time since last repair, aircraft model, and carrier.

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