Air ambulance services in the Thames Valley and Chiltern area have been restored after being grounded because of a fault.
The air ambulance, the same model which recently crashed in Glasgow, returned to operations on Saturday evening after investigations.
The EC-135 helicopter was grounded on Thursday, along with others in the Bond Air Services fleet, after an issue was found with the fuel indication system.
Mark McGeown, chief executive of the Thames Valley and Chiltern Air Ambulance, said: “We fully believe that the safety of patients and air ambulance staff is the number one priority.
“Obviously we are pleased to be able to resume normal operations.
“I would like to thank our colleagues in the South Central Ambulance Service and the Hampshire and Isle of Wight Air Ambulance for helping us maintain our emergency cover during these last few days.”