A little later than the time frame you specified, but in about 1971 (can’t remember exactly) my crew was briefed for a Taceval sortie with Andoya as the target. What was unusual, was that we were to drop an inert 28lb practice bomb specially provided for the purpose. The aiming point was a pile of old cars on the eastern side of the airfield, just short of the shoreline. Unfortunately the weather was below the required minima and we never got to do it. Unusual to say the least and the only time I ever heard of anything like this being attempted.
YS