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To: E who wrote (10326)2/4/1998 10:33:00 AM
From: bob  Respond to of 31646
 
Thanks, Hunter.
usatoday.com



To: E who wrote (10326)2/4/1998 10:38:00 AM
From: Gerald L. Kerr  Read Replies (1) | Respond to of 31646
 
>>one half of the domestic airline fleet is likely to be grounded on the eve of y2k<<

The question after that is how soon air travel could return to normal.

If the problems are as serious as the reports indicate, it could take months before full service is restored; it might take a couple of years to restore public confidence in the safety of air travel.

OTOH, telecommuting and video-conferencing should benefit....

Gerry



To: E who wrote (10326)2/4/1998 10:56:00 AM
From: John Mansfield  Respond to of 31646
 
Subject: Re: Sighting - FAA Y2K on CNN.COM
Reply-To: kiyoinc@ibm.XOUT.net (cory hamasaki)

>
>Say what??? A new generation of computers that can run 30+ year old
>machine code from systems whose architectures have been obsolete for
>decades? What are they going to do, write an emulator and debug it
>before 1999/12/31?
>
>Or are they going to rewrite hundreds of thousands of lines of assembler
>code by then? (Weren't these oldest FAA systems word-mark based instead
>of using fixed length words? Weren't they also 6-bit machines?)
>
>After rereading the article, I have to admit in all fairness to IBM,
>they did not say anything about these computers being able to run the
>existing or rewritten software in time... is this slick marketing or
>what?
>
>"Yes boss, the new computers are DEFINITELY Y2K compliant, but we don't
>have any ATC software that will run on them!"
>
>Jon Kibler

This is my understanding. I have never seen the FAA systems or the source
code.

The original ATC system was implemented on modified S/360 model 50's.
Sometime in the 1980s the software was rehosted on 3083's a single engine,
water cooled, S/370. The 3083, any S/370, can run S/360 code with some
restrictions.

There is some kind of Y2K flaw in the 3083. I've been told that no 308x will
IPL after Dec 31, 1999. I haven't confirmed that.

IBM is proposing to replace the 3083 with some kind of S/390, possibly a 9121
although a 9672 would be a better investment. This doesn't solve any software
flaw in the ATC system. It simply gives the FAA a hardware platform that will
IPL and run.

If I had more information on the FAA systems, I could provide a better
assessment.

cory hamasaki