You discovered a unique serial number in the FAA database. There is a good likelihood you discovered the aircraft that created your interest in the first place.
Note, testing of this "serial lookup" feature is open to the public. Once testing is complete this time-saving feature will be available for Premium Members.
Aircraft Serial Number: 500-0087
||Model Group||Last Action
|Looking for something like: "CESSNA CITATION 500 LONGWING"|
|AIR AMBULANCE BY AIR TREK INC|
3501 SILVERSIDE RD STE 105
* Note that registration is the only active field.