Houston (WBAP/KLIF) – Investigators say the private jet that crashed through an airport fence and burst into flames at a Houston airport had not been flown since December. The National Transportation Safety Board is examining maintenance work done on the plane. The NTSB also says tire marks on the runway indicate the plane’s pilots were braking hard and tried to abort the takeoff when the accident happened. All 21 people on board escaped the fiery wreck, and only two of them suffered minor injuries. The jet was owned by a Houston-area investment firm, and was carrying Houston Astros fans to the team’s game against the Red Sox in Boston. The NTSB believes its investigation will take between 12 and 18 month
