A charity air ambulance has issued an appeal for a building to house its aircraft at night during freezing winter conditions.
The Cumbrian aircraft does not currently have a hanger
Earlier this year, two helicopters in Northumberland and Cumbria were grounded after the Great North Air Ambulance suffered a fall in donations.
Now the charity says it urgently needs to find a building to accommodate the 30ft (9.1m) Pride of Cumbria aircraft.
The aircraft's temporary base in Penrith does not have a hanger.
Engineers at the organisation fear predicted freezing conditions in the coming weeks could result in the aircraft being unable to take off.
So officials have appealed to landowners in an effort to secure the use of a building large enough to provide overnight shelter for the helicopter.
A spokesman for the charity said it was awaiting planning permission for a hanger on the outskirts of Penrith.
But he said in the interim a building was needed to ensure mercy missions continued.
The charity has recently launched a series of television adverts aimed at boosting income to fund its two existing aircraft.
The first was screened on Monday, with people in the north-east of England being asked to give 50p a week.