document: A B-52 bomber crashed and burst into flames early today on a runway while practicing `` touch-and-go '' landings at K.I. Sawyer Air Force Base , officials said . All eight crew members survived . The plane , normally equipped to carry nuclear bombs , crashed about 1:15 a.m. , said Lt. Naomi Siegal , a spokeswoman at the Strategic Air Command installation . No weapons were aboard , said Lt. Col. George Peck , a spokesman for SAC headquarters in Omaha , Neb. . The crew was practicing landings after a seven-hour training flight when it crashed during one of its touch-and-go approaches , Peck said . During such maneuvers , landing gears touch the ground but the plane does n't land . All three sections of the plane burned on impact , said Senior Airman Tim Sanders , a base spokesman . The crew members crawled or were helped out of the front section of the aircraft , he said . They were taken to Marquette General and base hospitals . Members of the crew suffered broken bones , but no one was burned , said Capt. Paul Bicking , another Sawyer spokesman . Senior Airman Tim Sanders , another base spokesman , said those aboard were Capt. Mark Hartney , 29 , an aircraft commander from Mulberry , Fla. ; 1st Lt. Michael S. Debruzzi , 26 , a pilot from New Brighton , Minn. ; Capt. Anthony D. Phillips , 28 , a radar navigator from Folkston , Ga. ; 1st Lt. James W. Herrmann , 30 , a navigator from Sharpsville , Pa. ; 1st Lt. Daniel McCarrick , 25 , an electronic warfare officer from Succasunna , N.J. ; Airman 1st Class , Joseph A. Vallie , 20 , a gunner from Stephenson , Mich. ; Maj. William R. Kroeger , 52 , an instructor pilot from Fountain Hills , Ariz. ; and 1st Lt. Gregory C. Smith , 26 , an upgrade pilot from Henning , Minn. . All were based at Sawyer . Ann Parent , a spokeswoman for Marquette General Hospital , said Hartney and Debruzzi were in fair condition , Phillips and Vallie were in stable condition , McCarrick was in satisfactory condition and Kroeger was in serious condition . Herrmann and Smith were listed in stable condition at the base hospital , said Technical Sgt. Anita Bailey . Hartney was the aircraft commander , but Debruzzi also was qualified to fly the plane , Bailey said . She did not know who was at the controls at the time of the crash . `` We are counting our blessings , '' Bailey said . `` You can put parts of a plane back together , but you can not put people back together . '' The accident was classified as the most serious kind , and all aircraft exercises at Sawyer were canceled even though runways other than the one where the crash occurred remained open , Bailey said . Peck said a board of officers will investigate the accident , adding weather did not appear to be a factor in the crash . Peck said it was not unusual for B-52 training missions to be out at that hour . `` Crews have to be trained to fly at any time of the day or night in any weather , '' he said . The eight-engine B-52 , which was deployed in the early 1950s , is the military 's biggest bomber , with a wingspan of 185 feet and a maximum takeoff weight of 488,000 pounds . The last B-52 was commissioned in 1962 . In other accidents involving B-52s , a bomber was damaged when a pilot aborted a takeoff and overshot a runway at Castle Air Force Base in central California on Feb. 11 . No one was injured . A B-52 bomber with radar problems crashed in Arizona'a Monument Valley in October 1984 , killing two crew members , after its wings clipped a mesa . The Air Force has had more trouble recently with the B-52 's successor , the B-1B bomber . Although smaller than the B-52 , the B-1B can fly at supersonic speeds and carry more bombs . Four B-1Bs have crashed in the four years the plane has been flying , including two nine days apart in November . One of the $ 280 million B-1Bs was destroyed after smashing onto a runway at Ellsworth Air Force Base , S.D. , during a training flight on Nov. 17 . On Nov. 8 , a B-1B crashed and burned in a field near Dyess Air Force Base , Texas . No one was killed in either crash and investigators have not disclosed what caused the accidents . Six crewmen died and 10 were injured Oct. 11 when an Air Force tanker en route from K.I. Sawyer crashed at Wurtsmith Air Force Base near Oscoda . The Air Force 's investigation of the crash is incomplete . Wurtsmith and Sawyer are Michigan 's two SAC bases .
extractive_keyphrases: crash training flight crew members pilot
abstractive_keyphrases: b-52 bomber k.i. sawyer air force base