As we reach the end of day three of the AAIB investigation, the fact their are no ADs and the aircraft type has not been grounded suggests the following.
(a) There is no reason to suspect that the aircraft was in anyway defective.
(b) The primary causal factor is a result of the aircraft sustaining damage during flight as a result with contact with a structure or other object.
(c) If not (b) then due to the handling of the aircraft by the pilot in command, pax or both, either in error or intentionally.