The charity say they're 'appalled' at the theft, the helmet's been returned but it's damaged beyond repair.
A flight helmet, worth around £2,700, has been stolen from the Yorkshire Air Ambulance while it was attending an emergency call in Shipley.
The incident, described by the charity as 'extremely disheartening', took place sometime on Thursday night.
The helmet has since been located and returned, but it's very badly damaged and is likely to need replacing.
Abby Barmby, Director of Marketing & Communications at Yorkshire Air Ambulance, said:
“We were appalled to hear that one of our valuable flight helmets was stolen from the back of our helicopter whilst our crew were responding to an emergency 999 call last night in Shipley.
"We understand that a group of youths were involved, and cannot comprehend why they felt it necessary to take such a vital piece of our equipment.
"Our flight helmets are specialist and vital pieces of equipment all our crews wear in flight. Not only are they worn for protection and safety purposes, they are also worn so the crews can communicate with each other in flight. Each helmet is bespoke to our crew members and cost in the region of £2,700.
"Unfortunately it looks like there has been too much damage done to this helmet and it will now need replacing. As an independent Charity who relies on charitable donations to help fund our vital work, having to replace costly items of equipment that have been unnecessarily damaged for no justifiable reason is extremely disheartening.
"We would however like to thank the kind people in Shipley that managed to locate the helmet and return it to the crew, and also to West Yorkshire Police who have been of great assistance.”
Never been so disappointed. People of Shipley, whilst the air ambulance has landed in the West Royd area. To save a life. Someone has stolen a flight helmet from the helicopter. Any information regarding this please call 101 quoting 13190405939 PLEASE SHARE. @WYP_Shipley— PCSO 0081 LEAHY (@WYP_0081) August 8, 2019