To those of you who are, have been, or are otherwise in the know about being a 121 line check airman... I'm curious as to what the standard ways of logging time are. The following situations are those with which I'm curious... Zero desire to log any "sketchy" time, only 100% legit time...

When (if ever) would you log PIC while acting as SIC? Does the whole... when acting as an instructor, you may log PIC even if not PIC thing from back in the CFI days... apply?

When (if ever) would you log "dual instruction given"? Only on OE? When acting as an LCA (OE or line check) from a crewmember station? When acting as an LCA in any fashion, even if from the jumpseat? If dual given is logged, do you record dual received for the candidate or do airline training records suffice?


Now a real wolrd example: You've given a line check to a qualified and acting PIC. You're sitting right seat and acting as SIC. You've decided to log this time as dual given and SIC. Airlineapps, on the otherhand, asks for PIC, SIC, and Instructor. It then adds your instructor and PIC time together to get total PIC. This results the SIC time for this being counted by airlineapps as PIC time. How would you handle this?

Thanks for the advice all!