Question...is there any regulation concerning the overall airworthiness of an EAB aircraft for Phase One? If the subject aircraft has inoperative systems, or installed items that are broken / malfunctioning, is it legal to continue to fly the aircraft without any repairs being made?

This particular aircraft was inspected, found to be airworthy, and issued a conditional airworthiness certificate.

At a later date, multiple safety related mechanical problems arose.

Still legal to fly without repairs made, or illegal?