Well..
61.51(a)
TRAINING TIME AND AERONAUTICAL EXPERIENCE
Each person must document and record the following time in a manner acceptable to the Administrator:
(1) Training and aeronautical experience USED to meet the requirements for a certificate,rating or flight review of this part.
(2) The aeronautical experience used required for meeting the recent flight experience requirements of this part.
Meaning the minimum you are required to log is the time you need to apply for anything or to prove you're still current.
There is no maximum to what you can log.
You can log time in row 44 of a 757 if thats what you want as long as you do not use that time to apply for a rating or to remain current.
You also cannot log it PIC/SIC/Safetypilot or dual received just in the Total Time column.
Don't even think for a second that this would be of any use but the lawyers at Embry surely know this also.
So yes you can log observer time to your Total Time as long as you put in the remarks section "backseat observer" and you do not use this time to apply for a license or rating.
So theoretically you could have a PPL with 1000hrs of which he/she has only flown 50 hrs him/her self.
In Europe it was fairly common for people to log passenger time if a buddy was flying. It is aeronautical experience.......and legal just does not make a lot of sense if you want to be a career pilot.
Same story with cross country time, any landing at a different airport is XC just can't use it if it's less than 50 miles so useless to log and a nightmare to figure out later.
In two situations you can even log time when you are asleep:
Captain Long Haul and CFI ...LOL
