Project Crested Ice. USAF B-52 Accident at Thule, Greenland, 21 January 1968 Open PDF Document Details Document Type Technical Report Publication Date Jan 01, 1968 Accession Number ADA283578 Tags Communities of Interest Biomedical Human Systems DTIC Thesaurus Topics Accidents Air Force Air Force Facilities Aircrafts Civilian Personnel Clothing Communication Equipment Detection Engineers Filter Paper Flow Rate Gamma Rays Health Services Materials Military Personnel Protective Clothing Radiologic Health