Final answer:
A sudden blockage of the static port will cause the Airspeed Indicator to display incorrect airspeed, essentially freezing at the airspeed at which the blockage occurred. This inaccuracy can pose a serious risk to flight safety.
Step-by-step explanation:
If a sudden blockage of the static port occurs, the Airspeed Indicator (ASI) will no longer accurately indicate airspeed. Under normal operational conditions, the ASI measures the difference between the dynamic pressure from the pitot tube and the static pressure from the static ports. However, if the static port is blocked, the ASI will be unable to accurately compare the pressures and therefore, it will display incorrect airspeed.
The ASI will essentially become fixed at the airspeed at which the blockage occurred. For example, if the blockage occurs while the aircraft is flying at 150 knots, the ASI will continue to indicate approximately 150 knots, regardless of the actual airspeed. This can lead to dangerous flying conditions since pilots rely on the ASI for making critical decisions during flight.