Study of the accident/failure experience of cryogenic and storable propellent systems

Abstract

Purpose of Study: The purpose of the study was to (1) develop a methodology and conceptual framework for the analysis of accident/failure experience and (2) to use this methodology to gather, analyze, and report the accident/failure experience of two types of rocket propulsion systems. The two systems, cryogenics and storables are currently being considered for the Space Shuttle's Tug/third stage.

Findings and Conclusions: The conclusions are divided into two parts; (1) Finings of Present Study and (2) Recommendations for Future Studies. Although their use in the Shuttle program will not resemble their present applications, the study's findings is that the storables would be a safer system because of their historical record. Specific recommendations for future studies include securing original documents for investigation, developing an activity level (or exposure risk), and expanding the study to include agencies outside NASA.