Following the disaster that befell Dominion Airlines when their Desoutter II ZK-ACA crashed at Wairoa on the 9th of February 1931 the Air Force was called in to keep the Gisborne-Hastings air service running. The air service was all the more important following the Napier earthquake. On the 6th of March 1931 a new company, Gisborne Air Transport Ltd, was registered with George Nicholls being the major shareholder and relief pilot and Harry Lett as a shareholder and chief pilot.
|Poverty Bay Herald, 7 March 1931|
The service commenced operations on the 10th of March 1931 with Flying Officer Harry Lett flying the Moth on a return from Gisborne south to Hastings. Special envelopes were used on the first day flight. They included the direction of the flight with 180 covers were flown in each direction and they were all signed by the pilot Flight-Lieutenant Harry Lett.
|First day covers signed by Harry Lett.|
|The Gisborne Air Transport fleet... to the left the DH 60 Moth ZK-ABA and to the right the Desoutter ZK-ABY. Source : Gisborne Photo News, No 23 May 31, 1956|
|The air ambulance flight for Canon Packe. Source : Gisborne Photo News No 23 May 31, 1956|
|Desoutter ZK-ABY - Source : http://www.wings.net.nz/oldwings/1026.html|
|Harry Lett and George Nicholls reunited at Gisborne in 1964. Photo : Gisborne Herald|