Latest two test flights - both same route - EGCC-WAL-IOM-EGAA.
Set cruise to 12,000ft - Centre Altitude set at 10,000ft.
As usual all OK leaving EGCC airport.
Flying with no weather loaded - standard 1013/29.92 barometric pressure for all flight.
Cruise altitude 12000ft reached early into flight. Now get handed off to Centre frequency.
From there all is dead. No ATC, chatter etc. No response to key presses.
Check of debug files shows TGS de-activated at runway threshold then error codes.
Flight 1 - end of log file:-
21/02/14 15:10:52:150 - You've reached the holding point! TGS Deactivated!
21/02/14 15:10:52:160 - Exiting TGS...
21/02/2014 15:33:48: 950 - Err 53 at Loc: 0
Flight 2 - end of log file:-
23/02/14 15:54:18:680 - You've reached the holding point! TGS Deactivated!
23/02/14 15:54:18:680 - Exiting TGS...
23/02/2014 16:05:09: 380 - E
Getting fed up now.
