Before I was a pilot I was a helicopter engineer, the owner of the maintenance outfit only had a ppl H and ppl A. He used to do all the flight testing of the aircraft which were in for maintenance and ferry the aircraft for people. Now the cost of these trips were paid for by the customer, so is it legal for an engineer to fly an aircraft and be paid if he is flying it in the capacity of an engineer testing the machine.
It seems to be a bit of an odd one, and also if he were to crash with another engineer on board and kill him would there be any insurance payout to the family or would it be void. This was in the UK.
Answers on a post card.