GMGuidance material
GM1 38h (c) Runway surface condition descriptors
‘Freezing’ refers to the freezing point of water (0 degree Celsius). Under certain conditions, frost can cause the surface to become very slippery and it is then reported appropriately as downgraded RWYCC.
GM — Regulation (EU) No 139/2014 · ED Decision 2021/003/R · Aerodromes Easy Access Rules · EAR revision 13 Mar 2026