The mother of a police helicopter pilot killed in a crash in which six other policemen died is trying to clear his name after he was accused of being drunk. Doris Gouws claims that the mortuary identification number cited at the inquest as that of her son, Warrant Officer Tinus Gouws, was in fact that of another policeman ."It's about clearing his name. They said all sorts of things about him that were not true," she said.Gouws, the co-pilot of the BK117 helicopter, was killed along with the pilot, Captain Wikus Zaayman, and National Intervention Unit sergeants Kobus Henning and Daniel de Bruin, warrant officers Collin Davids and Dirk van Aswegen, and Colonel Percy Maduna, five years ago.The helicopter crashed in thick cloud in Verena, eMalahleni, while en route to assist officers who had cornered robbers holding hostages inside a bakery.According to mortuary records Gouws's body number was 2140 but during the inquest pathologists identified him by the number 2139, which, according to the Pretoria state mortuary register seen by The Times, is that of one of the five dead National Intervention Unit members.The push to have the inquest reopened is being made as the Gouws, Maduna and Davids families wait for the conclusion of their civil suit against the police minister.According to court documents they are suing for Zaayman's negligence which, they say, led to the crash.At the inquest the prosecutor said that both Zaayman and Gouws were drunk .Zaayman's post-mortem blood alcohol level was said to be 0.08g/100ml; Gouws's 0.02g/100ml.Magistrate Ernst du Plooy ruled that Zaayman, who was at a party the night before the crash, was drunk, lacked training and ignored flight procedures.He found that Zaayman was to blame for the crash, saying that he flew through cloud and had not filed a flight plan or made a preflight inspection.Gouws said there were glaring errors in the inquest which painted her son in a bad light."Our lawyer went to the magistrate with these new facts, but he made his findings anyway. The court heard that at the time there was alcohol in his blood, but he didn't drink the night before. He was sick at home," she said."My son didn't kill those policemen. We want these mistakes corrected."..