After this encounter the aircraft remained at a background reading of ° 1 rfhr until the pilot was able to fly through « showsr and reduce his background reading to 150 mr/nr, This aircraft was immediately retumed to base, 6. Fallout prediction was based on a yicle cfTT ar Ay 7. se “ v No fellout occurred at any of the off-site monitoring stations, A riee in radiosctivity wes noted at PARRY Isiard beginning et 2300M (H417) reaching < maximur of 1.1 mr/hr at 02004 (Hf20 hours), after which time it begen declining e normal decay rate, DNA ~ a