Caverton Helicopters, based at Lagos in Nigeria, has signed a purchase agreement for a second Series 400 Twin Otter. The aircraft is scheduled for delivery in the first quarter of 2017 and will support a contract with the Cameroon Oil Transportation Company (COTCO), a joint venture between Exxon Mobil, Chevron, Petronas, and the governments of Chad and Cameroon.

Caverton will fly the Twin Otter for onshore pipeline surveillance and passenger transfer services for COTCO along the 1,070 km underground pipeline route between the Doba oil fields in Chad to the offshore export terminal in Cameroon.