The Local Authority Trading Enterprise Board received 10 applications to take over the Chathams’ air service including Ansett, Vincent Aviation and Fieldair Freight and Mount Cook Airline and it was Mount Cook that finally secured the contract to operate the Chathams’ service using their Hawker Siddeley 748s. On Saturdays Mount Cook operated a Christchurch-Chathams-Christchurch service while on Tuesdays a Christchurch-Wellington-Chathams and return service was operated. Hawker Siddelelys ZK-CWJ and ZK-MCA most commonly operated the route. While the 748 offered increased passenger it had less room for freight. This reduction in cargo capacity was somewhat offset by the rise of Air Chathams.
|Mainstay of Mount Cook Airline's Chatham Island service was Hawker Siddeley 748 ZK-CWJ seen here at the Chathams on 13 October 1992|
|Mount Cook Airline's timetable, October 1992|
|Mount Cook Airline's timetable October 1993|
|ZK-CWJ again, at the Chathams in July 1993|
|Air War - 30% of all fares... The Chatham Islander, 8 November 1994|
|The Chatham Islander 6 December 1994|
|Operating 748s and Metroliners to the Chathams, 5 days a week... Mount Cook Airline's timetable May 1995|