The Britannia in question was an ex RAF 253 serial no XL 639. In civilian life it was E-IBDC with Aer Tauras anf G-BRAC with Redcoat. It crashed after take-off from Boston Logan due to severe icing conditions.
These aircraft used to do supply runs into RAF Belize during the70s. On the above trip was the wife of an RAF supply Sgt. She was hitching a ride back to UK after a holiday with her husband.
Aaron.