H Peacock, thank you. I would suggest that "frozen" is not a good adjective. "Blocked" or "severed" are also considerations. This a/c didn't fly every day. Statics are pipes that bugs can go down, moisture can collect, corrode, evaporate... So one might consider the consequences of the static being severed or leaky. Suppose there was a leak from the static pipe, inside the port wing, what would the pressure have been at the static inlets to the ASI and Altimeter? That's probably a rhetorical question as it would depend on true airspeed and perhaps angle of attack. I would doubt anyone has modelled that because one hopes to ensure the integrity of the static.