Flying for hire
A pilot who has lost his medical asked if I could fly for hire with him. Are there any rules about giving instruction to someone who has last his/her medical and for that matter someone who has lost his/her certificate? Could we both log the time as dual given/received?
Otherwise if it was considered flying for hire in an airplane provided by the client, would I have to log the time as PIC only? And, of course, I would need a second class medical.