Author Topic: Dissent against STS-121 launch was widespread  (Read 8758 times)

Offline apollolanding

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Re: Dissent against STS-121 launch was widespread
« Reply #20 on: 07/03/2006 08:38 PM »
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DaveS - 20/6/2006  6:54 PM

I just hope that we'll only see one tanking of ET-119 as we all know what MAF found when examining ET-120 which had two tankings.

Well we've had two tankings and we've had shedding.  Not due to launch and not associated with the ice/frost ramps but NASA did attribute it to the two tankings.  See http://forum.nasaspaceflight.com/forums/thread-view.asp?tid=3125&posts=41&start=1

Proud Member of NSF Since 2006-04-10.

Offline James (Lockheed)

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Re: Dissent against STS-121 launch was widespread
« Reply #21 on: 07/03/2006 08:46 PM »
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zinfab - 30/6/2006  8:25 AM

http://space.com/includes/iab.html?url=/missionlaunches/060629_newtools.html

AORP is finally "out there." I saw it on NASA-TV's press conference yesterday afternoon.

It was on this site a long time before the above. It was "out there" from that point.

Offline FutureSpaceTourist

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Re: Dissent against STS-121 launch was widespread
« Reply #22 on: 04/27/2017 06:30 PM »
I know this is a very old thread, but Wayne Hale has now started a series of blog posts about the STS-121 launch decision:

https://waynehale.wordpress.com/2017/04/27/sts-121-the-hardest-launch-part-1/

Offline Jarnis

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Re: Dissent against STS-121 launch was widespread
« Reply #23 on: 04/28/2017 06:26 AM »
I know this is a very old thread, but Wayne Hale has now started a series of blog posts about the STS-121 launch decision:

https://waynehale.wordpress.com/2017/04/27/sts-121-the-hardest-launch-part-1/

Ugh, it is a multi-parter with a cliffhanger...  :-\

Offline FutureSpaceTourist

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Re: Dissent against STS-121 launch was widespread
« Reply #24 on: 04/28/2017 09:12 AM »
I hadn't realised that the doc Wayne references (attached to this post) is the STS-121 certificate of flight readiness with missing signatures (don't know how normal that was) and caveated signatures:

Quote from: NASA Chief Engineer
I remain no go based on potential loss of vehicle however for this mission I have no intention to appeal the decision based upon ISS capability to provide CSCS

Quote from: Chief of Safety and Mission Assurance
I am no go based on loss of vehicle risk (ice frost ramps). Based on appeal to administrator I have no intention to appeal his risk acceptance and concur with proceeding with the mission

In my career I have been invovled in (software) safety review/approval meetings (not space-related) but nothing as safety critical as STS. On a much smaller and less critical scale I've had occassion to think hard about whether I was comfortable with known residual risks, but I can only imagine how magnified that dilemma would have been for STS-121. I can fully sympathise with all those involved - irrespective of which personal decision they made as to the acceptability of risk.

Really looking forward to Wayne's future posts (personally and professionally).

Online Confusador

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Re: Dissent against STS-121 launch was widespread
« Reply #25 on: 05/09/2017 12:44 PM »
I hadn't realised that the doc Wayne references (attached to this post) is the STS-121 certificate of flight readiness with missing signatures (don't know how normal that was) and caveated signatures:

There are no missing signatures.  Page 3 is duplicated, with signatures from different days, and "Associate Administrator for Prime Mission" on page 8 is N/A because it's ISS.

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