dean ragg: "i'm not surprised".rtz: "the company says it was a minor incident, there was no damage done". dean ragg: "no, but the potential was hugely there for a major incident". schwartz: dean ragg is a former chief pilot of balloon adventures up up and away. when he left the company in march 2010, he took his safety concerns to the civil aviation authority. four months later the caa grounded the company's seven balloons for seven weeks. it said the operation presented a threat to people's safety. dean ragg: [balloon pilot] "i started looking into rules, regulations, maintenance and all that sort of stuff and i found a few things that needed being tidying up. then i went through the process of tidying those particular spots up with a little difficulty". ♪ schwartz: one of the two directors of balloon adventures up up and away is pilot chris johnson. as a young army officer he was court martialled for theft. in 2004 he was convicted under the civil aviation act after providing air investigators with what the judge