International Association of Machinists and Aerospace Workers

Other areas of concern include increases in the number of aircraft fires and the mrniber of accidents caused by metal fatigue and corrosion, which International Association of Machinists and Aerospace Workers president Winpisinger (1988, pg. 365) attributes to reduced maintenance and inspection efforts however, this observation is not based on a statistical analysis. Finally, an Office of Technology Assessment (OTA, 1988) report raises concerns regarding ... 

An analysis by Morrison and Winston (1988, pg. 11) shows that airframe hours of planes involved in accidents have increased, but hours have increased even more for the industry fleet. Thus, it does not appear that the use of aging aircraft has in general been associated with a substantial increase in overall risk. However, International Association of Machinists and Aerospace Workers president Winpisinger (1988, pp. 365-366) notes that the age of aircraft involved in accidents caused by metal fatigue increased much more rapidly than the age of aircraft involved in other types of accidents. This suggests that increased aircraft age may have contributed to the risk of that specific category of accidents. 

International Association of Machinists and Aerospace Workers United Auto Workers Standards Organizations... 

---