The team behind Wiltshire Air Ambulance said it is one step closer to returning the county's main helicopter to active service.
The helicopter has not been able to attend emergencies since the start of 2019, following technical problems and the company which provided the air licence going out of business.
The head of the emergency service said the team had a successful inspection by the Civil Aviation Authority and is now waiting to be issued a certificate.
Bosses are hoping it can return to active service in the near future.
The Bell 429 helicopter in the air ambulance's green and yellow colours, was grounded on 2 January.
This came less than a month after Camilla, Duchess of Cornwall, officially opened the charity's new base at Semington, near Melksham.
It was initially taken out of service after a technical problem, but soon after the company which provided the air licence went out of business.
In the meantime the helicopter is being used for training.