Extra 1699 East (F-3A, F3-B, GP-7 & 33 cars) going from Sharonville to Columbus at night derailed one truck of the 20th head car at Linden Ave. in Springfield while moving at 10mph. This was observed by the Springfield Yard operator who tried to signal the rear-end crew that brakes were sticking and who notified the operator at Carney Tower who observed the train, saw no deficient condition, and hi-balled the caboose. The Yard operator noted a bad signal circuit indication on his panel and called out the signal maintainer who later reported that there had been a car derailed which rerailed at the wye switch. This was reported to the train dispatcher.
In the meantime, Extra 1699 went into the siding at London for lunch, but departed before the Dispatcher contacted the operator at London Tower (PRR Xg).
En route at about 45 mph, the train derailed 15 cars at the east siding switch (Galloway) and 2 tank cars of ethylene oxide ruptured and ignited. Columbus and Franklin Twsp. FD's responded, and 45 personnel were injured when one of the tanks exploded.
Original derailment was caused by improper track profile on an 8@ curve at Linden Ave, and the general derailment was caused by a broken journal due to overheating from damage in the initial derailment.
In the meantime, Extra 1699 went into the siding at London for lunch, but departed before the Dispatcher contacted the operator at London Tower (PRR Xg).
En route at about 45 mph, the train derailed 15 cars at the east siding switch (Galloway) and 2 tank cars of ethylene oxide ruptured and ignited. Columbus and Franklin Twsp. FD's responded, and 45 personnel were injured when one of the tanks exploded.
Original derailment was caused by improper track profile on an 8@ curve at Linden Ave, and the general derailment was caused by a broken journal due to overheating from damage in the initial derailment.