Overview
- The National Transportation Safety Board released its report on July 15, 2026, saying a sequence of technical, communication and human-factor failures led to the August 11, 2024, Bel Air explosion that killed a homeowner and a BGE contractor.
- Investigators found an underground electrical fault energized a copper tracer wire that heated and breached a nearby plastic gas service pipe, allowing gas to leak and migrate to the house; the report noted gas and electric lines in the trench were as close as three inches, far below the 12-inch recommended separation.
- Multiple reporting and dispatch failures delayed a proper response for more than 10 hours, including a misrecorded location that sent a gas crew to the wrong address and automated routing that sent emergency calls to an on-call agent who was unresponsive during an unscheduled overtime shift.
- The NTSB said Exelon did not submit the on-duty agent for post-accident drug and alcohol testing, so investigators could not quantify the agent’s impairment, and the missed calls left repeated reports of gas from neighbors and a county worker unaddressed before the blast.
- BGE and parent Exelon have adopted fixes the report described, such as forcing manual answering on overnight and weekend shifts, supervisor fitness screenings for call-takers, new technician protocols at shared-trench sites, and a pilot program for physical trench barriers to reduce the risk of pipe damage.