Originally Posted by
MarkerInbound
Which letter is that? The Nichols letter of 2009 states that the SIC must be required either by the TDC or the regulations the aircraft is operated under and specifically gives an example where a part 135 SIC would not be able to log time.
Marker,
The Nichols letter is not very clear, but the air carrier, may elect to operate the aircraft without the autopilot, in other words with a SIC. The letter does not state that the autopilot has to be inoperative. So if the pilot is assigned to the flight as SIC, they may log the flight time.
One thing to keep in mind when dealing with Letters of Interpretation is that they are written by lawyers, not pilots, so be careful on reading anything between the lines.