How the Danio cargo ship went aground by lighthouse
2 September 2013 Last updated at 13:54 BST
Inside Out looks at how a modern cargo ship ploughed into the Farne Islands right next to an operational lighthouse.
The MV Danio got caught on rocks on the Farne Islands off the Northumberland coast on 16 March, 2013.
Investigators looking into what caused the cargo ship to run aground have discovered a member of crew on watch "fell asleep".
Owner of the vessel, Frank Dahl, said the incident was down to "human" error.
Inside Out is broadcast on Monday, 2 September at 19:30 BST on BBC One North East and Cumbria and nationwide on the iPlayer for seven days thereafter.