[tz] GPS Week Number Rollover Apr 6/7

The airlines' software problems are most likely with Notices to Airman (NOTAMs).  These are public domain data and announcements of airspace restrictions, etc. which AeroData, Inc. has been contracted by the FAA to provide since 1990.  It looks like they do it for the EU, too. These announcements are part of the suite of software that AeroData provides.  Every media outlet is mentioning weight and balance (read fuel load and cargo balancing for aircraft before take off) and completely missing the part that does airspace restriction, route and waypoint calculations that will certainly involve GPS information.  Ya' gotta love the media...