◆ SpookStack

r ) ‘ 1 On 3/23/72 at 1400 a Hughes TH-55 2 passengef helicopter yellow in color number N 9477 F which was registered to Columbia Construction Helicopter Service, 4747 N, Channel Avenue, Portland Oregon was Flying and hovering in the traffic pattern of a well marked emergency heliport located at Aricl am Site at traffic ‘pattern altitude, [ __§_,+ of the helicopter company (telephone [lb b6 was contacted and advised his company had checked with FAA for bic restrictions on flight with negative results. He advised it was a helicopter of his company with a news man aboard, The helicipter spent approximately 20 minutes over the arra, tland Flight Service was contacted and[ ___ b6 | was advised of details of the flight. advise b7C at a safety compliance notice would be made in the pilot's flight record. He also advised that a flight advisory would immediately be put out restricting civilian aircraft flight in the one mile radius of the Ariel Dam heliport and 4,000 eet ° DB Cooper-8558