It said the Coast Guard should have revoked the pilot 's license , the pilot should have given a meaningful pre-departure briefing about plans for the voyage and the master pilot should have taken a more active role in ensuring the ship 's safety . Pilot of tanker that struck the San Francisco Bay Bridge `` medically unfit , '' Cota says . Man was taking `` a about 2,500 impairing prescription medications , '' report says . Crash in November 2007 caused oil spill that killed half-dozen birds , NTSB says . Supervisor 's poor oversight also cited as factor in NTSB report .
Pilot of tanker that struck the San Francisco Bay Bridge `` medically unfit , '' Cota says . Man was taking `` a about 2,500 impairing prescription medications , '' report says . Crash in November 2007 caused oil spill that killed half-dozen birds , NTSB says . Supervisor 's poor oversight also cited as factor in NTSB report .