Narrative:

Two hours into our flight we smelled an electrical burning odor. At the same time; passenger came to cockpit and asked us if 'we smell that'. I instructed my first officer to go into the cabin and investigate the source. He was unable to find source; but the odor was increasing. I had him come back and we decided to make a precautionary landing. Leaving FL410 we spoke to ATC about runway options. We were routed to [a nearby airport]. During the descent we executed appropriate checklist and finally landed safely on the runway within aircraft weight; where we executed emergency shutdown and evacuation with no incident to crew or passengers.

Google
 

Original NASA ASRS Text

Title: Hawker 4000 flight crew reported diverting to an alternate airport after noticing an electrical burning odor.

Narrative: Two hours into our flight we smelled an electrical burning odor. At the same time; passenger came to cockpit and asked us if 'we smell that'. I instructed my First Officer to go into the cabin and investigate the source. He was unable to find source; but the odor was increasing. I had him come back and we decided to make a precautionary landing. Leaving FL410 we spoke to ATC about runway options. We were routed to [a nearby airport]. During the descent we executed appropriate checklist and finally landed safely on the runway within aircraft weight; where we executed emergency shutdown and evacuation with no incident to crew or passengers.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.