Originally Posted by
aerobat77
at an international airport
-you would get every attention when you startup the engines without any startup clearance and with no flightplan of this aircraft in the system
- you would surely trigger a full blown alert when you start to taxi an aircraft without radio communication to ground , without startup and taxi clearance and without any flightplan issued .
i,m wondering how he made it to takeoff position on the runway ??? i would expect you would be blocked with e.g a fire truck to reach the runway in such a case
Play this YouTube coverage of the initial and subsequent ATC stream and you'll hear the the SeaTac tower calling the aircraft attempting to work out who it is and what's happening. I'd say the distance from where he started to the runway threshold was pretty short so there was likely no time for any intervention