Original sentence: In 1930, the French Shipyard and aircraft manufacturer Ateliers et Chantiers de la Loire started design of a single-engined flying boat for use as a trainer and a transport in Grances overseas possisions
Edited sentence: Although it was damaged in an accident in October it was repaired and entered service in 1932 as a trainer.An order for six aircraft similar to the Loire 50bis, designated Loire 501, delivery starting by the end of 1933.In 1930, the French Shipyard and aircraft manufacturer Ateliers et Chantiers de la Loire  of Saint-Nazaire started design of a single-engined flying boat for use as a trainer and a transport in Grances overseas possisions.It was returned to Loire in February 1933, where it was modifed with a more powerful Hispano-Suiza 9Qd engine, becoming the Loire 50bis, flying in this form on 18 October 1933.The Loire 50 first flew on 7 September 1931.The Loire 501 remained in sevice at the start of the Second World War, with the last example still in use at Karouba in Tunisia on 15 August 1940