Under the conditions attached to a Passenger Certificate, after what events must a written report be made to the MCA within 24 hours of the event, or as soon as possible thereafter?

In the event of: 

(1) any accident occasioning loss of life or serious injury to any person; or (2) any material damage affecting the seaworthiness or efficiency of the ship, either in the hull or in any part of the machinery; or (3) any alterations or renewal in the ship’s hull, machinery or equipment which may affect the efficiency or the seaworthiness of the ship.