I have a installation that has a 120v 24 circuit breaker panel that has the main cover intact but has had the door removed. It appears this was done becuase there is a pipe that protrudes in such a way that the door would not open freely (lacks about 2 inches). This is not a new installation, the panel has been in place for about 25 years and appears this was done during construction. Does the hinged door need to be replaced or is there a violation present?