Only one of 16 unstabilized approaches flown by flight crews of Thai Airways in the first quarter of 2011 resulted in a go-around, according to data from the company’s Flight Safety Investigation Department.1 An increase in false — also called nuisance or non-safety-critical — enhanced ground proximity warning system (EGPWS) warnings was also seen during the period.
Safety-related events in a Thai Airways study were categorized as involving flight safety, ground safety or cabin safety. Ground safety events were the least frequent — totaling 20 in the January–March study period. They included “two reports of high breakaway thrust at Suvarnabhumi Airport [Bangkok]â€; 10 reports of an aircraft parked beyond the “T†mark; absence of red traffic cones around caution areas such as under aircraft wings and engines; inaccurate calculation of zero fuel weight; aircraft center of gravity beyond the aft limit; maintenance workers 
