Re: ARIANE 5 Flight 501 Failure Report



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Jonathan Moffett (jdm(at)minster.york.ac.uk)
Mon, 05 Aug 1996 10:11:15 +0100


[This message has needed a little help in getting through. The correct email address for the sc list is address for the sc list is hise-safety-critical(at)minster.york.ac.uk. ".cs" in the middle is optional; "minister" is not acceptable. JDM >>From garlingtonke(at)lmtas.lmco.com Fri Jul 26 11:59:06 +0000 1996 remote from minster.york.ac.uk >Message-ID: <31F8B30A.12E3(at)lmtas.lmco.com> >Date: Fri, 26 Jul 1996 11:59:06 +0000 >From: Ken Garlington <garlingtonke(at)lmtas.lmco.com> >Organization: Lockheed Martin Tactical Aircraft Systems >To: leveson(at)cs.washington.edu >CC: hise-safety-critical(at)minister.cs.york.ac.uk >Subject: Re: ARIANE 5 Flight 501 Failure Report >References: <199607261402.HAA12657(at)fossey.cs.washington.edu> > >leveson(at)cs.washington.edu wrote: >> >> Sorry, meant reuse not COTS. Although the issue is the same --- COTS >> usually includes code and features that are not needed for the particular >> application. >> >> Nancy > >I think you may have been right the first time, as well. The SRI was certainly >"off-the-shelf," based on the description in the report, and it appeared to >be a commercial application (both Ariane 4 and Ariane 5). > >This appears to be a popular trend with inertial navigation systems -- trying >to reuse all or part of the system from platform to platform. Given the other >trend of increasingly coupling INS data with safety-critical systems, it >certainly bears watching... > >-- >LMTAS - "Our Brand Means Quality" > >------------------------- end of message ------------------------------------- > >


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