Slateroofsare arranged toallow for localisedreplacement, soif there was a generalpaint finish it couldcausethem to bond together causing a maintenanceissue.
According to the NTSB, which is investigating the crash, maintenance records show that an "impedance bond" for the track circuit where the accident occurred was replaced June 17.
At the World Championship Cutting Competition, held last month in a suburban Atlanta parking lot, Gary Bond, a 48-year-old maintenance worker who named his knife "Bruiser, " was among the strongest contenders to knock out Mr. Phillips.