LaserRef II and III, Inertial Navigation Unit,  End-Of-Life
DFJ announcement of obsolescence

Honeywell announcement
Operator Information Bulletin

Proline IV  Display tubes aging support
After market support
 Regional Avionics
Duncan Blurb

Airshow 400, Moving Map Display
Discontinuance 

Audio Internation Cabin Management
Obsolete Duncan Blurb

Baker Audio Management obsolete

Falcon 10 YD/Arthor box no longer supported by vendor