N-reg banned from RAF aerodromes?
here
Page 3:
12.4 Foreign aircraft are not normally permitted to use UK Government aerodromes. However, those aerodromes identified as Military
Emergency Diversion Aerodromes in GEN 3.6 may be used by foreign aircraft when the destination aerodrome, as indicated in the flight
plan, is unusable because of adverse conditions.
Curious... I managed to land at Coltishall before it shut.