Aircraft is N125PS a 1986 Challenger 601 operated by World Wide Jets out of Arizona.
FlightAware Flight Tracker Aircraft still on the ground in Denver.

photo kl/flickr
The second one involved a Swedish Military Gulfstream IV of the Swedish Air Force, made an emergency landing - excellent translation on google translator - the cabin filled with smoke, the landing took place without drama. Nine persons on board - no injuries - aircraft landed at Ängelholm / Helsingborg Airport.
Swedish News/video
Photo of incident aircraft registration; 102001/ 021, Swedish Air Force operate 1 GIV, 3 GIVSP, 1 G550,
and 2 Sabreliner 40A's.

photo jetstar31/flickr

