In article ,
Alexander Avtanski wrote:

I just got an e-mail from a reader of this group (Thanks!), who sent
me links to some ATC audio and pointed out the place where the tower
says that a "flight check Lear will do a low approach to 12R".

Flight Check is the FAA checking navaids. The ILS for 12R was
probably due for a check. I've seen them do a check at Palo Alto
(PAO), and they zipped through the approach really fast, on their
way to the next check.

John
--
John Clear - http://www.clear-prop.org/