four crewmen were killed. On August 3, 1962, a B-47 (serial number 52-0526) crashed on takeoff at Pease; all three crewmen were killed. On November 5, 1964, a KC-97 crashed on takeoff at Pease; all five crewmen were killed. Some of the wreckage was scattered across nearby New Hampshire Route 101, which is now New Hampshire Route 33. On December 8, 1964, a B-47 (serial number 52-0339) crashed in Newington shortly after takeoff; all four crewmen were killed. On February 26, 1965, a B-47 (serial number 52-0171) returning to Pease from Spain was involved in a mid-air collision while refueling over the Atlantic Ocean with a KC-135 from Dow Air Force Base; the four crewmen on each plane were killed. On July 21, 1965, a B-47 (serial number 52-0160) was forced to make a belly landing at Pease due to inoperative landing gear; there were no injuries. On January 30, 1981, an FB-111A (serial number 68-0263) crashed in Portsmouth. Both crewmen successfully ejected, and there were no fatalities on the ground; however, the resulting fires in a housing complex caused $385,000 in damages and left 13 families homeless. The accident was ultimately attributed to "incorrect" actions of the pilot during a stall spin. On January 11, 1990, a KC-135 (serial number 59-149) caught fire on the tarmac at Pease during maintenance work; there were no injuries, however the aircraft was destroyed. Events Prior its closure as an active base in 1991, frequent air shows were held at Pease, typically featuring either the United States Air Force Thunderbirds or the Blue Angels of the United States Navy. The 1977 show was promoted as being the "21st annual Open House". Air shows held at Pease AFB include those held in September 1960 with the Thunderbirds, August 1972 with the Thunderbirds, July 1977 with the Thunderbirds, July 1987 with the Thunderbirds, May 1988 with the Blue Angels, September 1989 with the Thunderbirds, and May 1990 with the Blue Angels. Subsequent air shows have been held infrequently. These include August 2010 with the Blue Angels, August 2011 with the Thunderbirds, June 2012 with the Blue Angels, and September 2021 with the Thunderbirds. Environmental issues Aircraft maintenance operations at Pease AFB generated hazardous waste, including spent degreasers, solvents, paint strippers, jet fuels, and others, which contaminated soils and groundwater. Environmental investigations began in 1983 under the Air Force "Restoration Installation Program". In 1990, Pease AFB