Re: mini Y2K?

[brian whatcott <inet@INTELLISYS.NET>]

At 17:18 10/31/99 -0700, Jim Green wrote:

> > the crash of the Egyptian flight 990 may have occurred
> > precisely when its computer software made the
> > change from "daylight savings" to "standard" time!
>
> Oh my, Bob, you are absolutely right -- none of the news
> people have picked up on this.
> OTOH, I doubt that the airlines use ET as a standard -- more likely UT --
> especially an Egyptian airline.  Pilots on the list do tell us.
>
> Jim Green

Not sure of the 767 fit. It is a 'glass cockpit' airplane.
(That is to say, the principal displays are CRTs.)

 Honeywell's FMS (Flight Management System) is popular with airlines
 and it uses GPS - which provides a peerless Zulu time.

 And so does the Rockwell/Collins FMS aboard some military
airplanes.  Every commercial airplane also has a clock/stopwatch.

Flight operations are typically conducted in Zulu.
 (for practical purposes, this is GMT)

   As it happens, the GPS constellation changed epoch in some way
similar to the Y2K event - and some hand held GPSs came back up -
 but some didn't. But that was weeks ago.


brian whatcott <inet@intellisys.net>
Altus OK