WASHINGTON ( CNN ) -- For the fifth time this year , a U.S. Air Force nuclear weapons unit failed an inspection , this time because of failure to document its handling of nuclear missiles and other critical issues , Air Force officials said . In an Air Force file photo , an airman inspects a missile part at a training site . A `` nuclear surety inspection '' and `` unit compliance inspection '' was conducted this month on the 90th Missile Wing at F.E . Warren Air Force Base in Wyoming by an Air Force inspector general . There was no risk to the unit 's Minuteman III nuclear missiles , Air Force officials said . The unit has 90 days to correct the problems and pass another inspection . In the wake of recent problems , Defense Secretary Robert Gates and top Air Force officials have indicated a zero tolerance for failing inspections , but no punishments are expected in this case , officials said . The inspection report found the maintenance unit failed to document tests conducted on missiles correctly , including tests on safety devices . The inspector general told the unit the failures indicated either a `` lack of competence '' or `` disregard for procedures , '' according to a source who has seen the report . Additionally , failures included having some personnel on duty without proper medical clearance and failure to inspect radiation detectors . Other units that failed inspections this year included two bomb wings and two missile units .
Unit at Wyoming base fails to document missile handling , Air Force officials say . The 90th Missile Wing has 90 days to make corrections . No risk to Minuteman III nuclear missiles , officials say .