The planned sale of the airport recently fell through after more than eight months of negotiations.
The charity's new £10.3m helicopter is being kitted out at Gloucestershire Airport.
A £25m deal to sell the 375-acre site collapsed after eight months of negotiations.
Ella Moulsdale knew almost nothing about meningitis when she fell sick at Bath Spa University.
Council leaders said the terms of the sale had "moved significantly away from the original bid".
Negotiations have been taking place since last summer, with deadlines missed.
Opinions on what should happen to the airport are mixed.
The site is being sold more than £25m and it is hoped will bring new business to the area.
The aircraft was completely destroyed after a spare part bought at an air show in America collapsed.