Originally Posted by robotsapproach
The important thing regarding SIC time and the ATP certificate, is that ALL SIC time counts towards the 1500 TT as long as the airplane requires two pilots and it was conducted under 121 or 135 ops.
Just to clarify that, SIC counts if either the aircraft certification or AFM requires it (IE must have two crewmembers), OR if the SIC time was logged in part 121 or 135 ops.
Part 91 SIC time in an aircraft requiring two pilots will count as well.
~J