One of the air ambulances was put back in operation on Friday, and the other two were cleared for flight yesterday morning (Sunday).

A statement from Bond said: “During normal operations, one of our EC135 fleet experienced an indication defect that required further technical investigation.

“Therefore as a precautionary measure we temporarily suspended service operations whilst we undertook detailed diagnosis.”

Although the Midlands Air Ambulances at RAF Cosford, Strensham, and Tatenhill Airfield were out of action, South Warwickshire was still protected by the Warwickshire and Northamptonshire Air Ambulance.

In addition, Midlands Air Ambulance paramedics provided emergency care from their bases via land in rapid response vehicles.

Hanna Sebright, chief executive for Midlands Air Ambulance Charity, said: “The safety of public, our aircrews, and patient care will always remain our priority.”