Matthew, IIRC they operate with an approved waiver. Al ----- Original Message ----- From: "Matthew Sheren" <matthew.sheren@mail.mcgill.ca> To: <AIRLINE@LISTSERV.CUNY.EDU> Sent: Tuesday, January 07, 2003 5:40 AM Subject: Re: When an Intrusion is Not an Intrusion > Bahadir Acuner wrote: > > > Richard, > > it is perfectly safe.. Since he is in Class B airspace, he is radar > > identified, and has two way radio communications with the ATC facility. It > > may seem odd, but checking the pipelines with aircraft is an old business. > > > What about the 500' from any person, object, or terrain rule? > Matthew :) >