PHILADELPHIA — Twenty-four hours after two gas explosions ripped through a Bucks County nursing home, the dead and injured had been identified, survivors were accounted for, and the cleanup was underway. But unanswered questions about the blast’s cause mounted.
On Wednesday morning, PECO provided a drastically different account of when its crews responded to reports of a gas odor on Tuesday, saying technicians had actually arrived hours — not minutes — before the blast at Bristol Health & Rehab Center.
Then, the energy company went silent, declining to answer any additional questions as the National Transportation Safety Board (NTSB) took over a sprawling investigation that will also involve other federal law enforcement and regulatory agencies…