Originally Posted by
David Watts
Under part 91 if you are rated in the plane you can log the time as PIC. So if you were flying a Citation and had your type in the plane and ATP and the aircraft is operated in part 91 you can log it as PIC when you are the sole minipulator of the controls.
As for part 121 well no you can't. As was answered by some one else for the reasons why.
Seriously, point out the reg in part 91. I want to see a reference.
Added: There is nothing preventing a sole manipulator, as long as they are qualified in the aircraft, from logging the time spent actively flying the plane as PIC. You can do the same thing in part 135 (SIC's logging PIC). It's just not a generally accepted column of flight time.