ar cloud were contaminated with cn avorage of 2788 MR's and were out of - ia commission as of 1200 hours. The highust degree of contamination was 4755 MR's amd the lowest was 1135 MR's. The remaining threo circraft wore out of commission for periodic inspections cs of 1600 hours, 1 Merch. It had been decided to polish the aircraft with Cleaning-Brightoning Compound (Spec No, MLL-C-5410) to free the aircraft skin of dust, grease, and aluminum oxidation whenever necesscry to prevent excessive contamination of the aircraft by radioactive material. It was also decided that the aircraft would be kept cs clean as possible by washing whenever necessary as an additional preventive of excessive contamination and corrosion. The actucl decontamination of the aircraft began 4 March and was completed on 6 March. Beccuse of the shortage of Radiological Safety personnel, it was necessary for tho Jircraft Maintonance Soction to <5 furnish personnel to operate decontamination eouipment such as trucks and heaters as well as to wash tho aircraft, dftor the aircraft were expescd in the radiation Decay ..rea, where the radioactive matcrial was expended as much as possible, they wero brought to the Pecontamination -rea wucre they wero docontaminated to the lowest possible degrea by washing. Wien the aircraft no longer presented a safety hezard by boing vontaninatd, they were returned to this section for maintenance, To curtail the shortage of monitoring personnol, soven airmen of this section received instructions for the use end care of the 1M--74,/702- 27C Radiac Meter to bo used for monitoring eircraft for safe working conditions; for monitoring aircreft parts and to obtein infermaticon necessary to complete .F Form 218 (Dengor Radiation} befcre tum-in to “Wdtag 398