"John T" wrote in message
ws.com...
That's not the way I read the regulation (61.113(a) and (c)). That
section
says only that Mark must pay no less than his pro rata share of fuel, oil,
airport and rental costs.

The regulation you're looking at applies only to exceptions in which a
private pilot may operate for hire.

If Mark doesn't take any money, he's not operating for hire, and 61.113
doesn't apply.

Pete