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  Space Shuttles - Space Station
  SRB O-ring anomalies post-Challenger

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Author Topic:   SRB O-ring anomalies post-Challenger
DeepSea
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Posts: 69
From:
Registered: Jun 2014

posted 04-05-2016 06:45 PM     Click Here to See the Profile for DeepSea     Edit/Delete Message   Reply w/Quote
Looking at the NASA-produced Significant Incidents and Close Calls in Human Spaceflight chart,, I was intrigued to see the "SRB Seal Events" section include "SRB Gas Sealing Anomalies" for flights after 51-L, listing STS-42, 71, 70 and 78.

A quick Google search brought-up the mission report for STS-42, which lists the incident as not critical to "safety-of-flight" as the primary o-ring was not affected, but that an investigation was on-going.

Does anyone have any more information on any of this? Was just curious. It's not something I've come across before.

JohnSpaceUK
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Posts: 43
From: UK
Registered: Jan 2016

posted 04-06-2016 05:21 PM     Click Here to See the Profile for JohnSpaceUK   Click Here to Email JohnSpaceUK     Edit/Delete Message   Reply w/Quote
That's a fascinating document. I wasn't even aware of the D21 Drone.

Thanks for posting it.

Dave_Johnson
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Posts: 112
From:
Registered: Feb 2014

posted 04-06-2016 06:53 PM     Click Here to See the Profile for Dave_Johnson   Click Here to Email Dave_Johnson     Edit/Delete Message   Reply w/Quote
There's also a companion document for EVA incidents.

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