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International Space Station (ISS) Low Pressure Intramodule Quick Disconnect FailuresA failure of an ISS intermodule Quick Disconnect (QD) during protoflight vibration testing of ISS regenerative Environmental Control and Life Support (ECLS) hardware led to the discovery of QD design, manufacturing, and test flaws which can yield the male QD susceptible to failure of the secondary housing seal and inadequate housing assembly locking mechanisms. Discovery of this failure had large implications when considering that currently there are 399 similar units on orbit and approximately 1100 units on the ground integrated into flight hardware. Discovery of the nature of the failure required testing and analysis and implementation of a recovery plan requiring part screening and review of element level and project hazard analysis to determine if secondary seals are required. Implementation also involves coordination with the Nodes and MPLM project offices, Regenerative ECLS Project, ISS Payloads, JAXA, ESA, and ISS Logistics and Maintenance.
Document ID
20050217231
Acquisition Source
Johnson Space Center
Document Type
Conference Paper
Authors
Lewis, John F.
(NASA Johnson Space Center Houston, TX, United States)
Harris, Danny
(NASA Marshall Space Flight Center Huntsville, AL, United States)
Link, Dwight
(Boeing Aerospace Co. United States)
Morrison, Russel
(Boeing Aerospace Co. United States)
Date Acquired
August 23, 2013
Publication Date
January 1, 2004
Subject Category
Man/System Technology And Life Support
Report/Patent Number
SAE-04ICES-XX
Meeting Information
Meeting: International Conference of Environmental Systems Meeting
Location: Colorado Springs, CO
Country: United States
Start Date: July 19, 2004
End Date: July 22, 2004
Sponsors: Society of Automotive Engineers, Inc.
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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