Gas Leak Detected at Nursing Home Prior to Fatal Explosion: NTSB Report

Hours before a tragic explosion devastated a Pennsylvania nursing home last month, staff members expressed growing concern over a strong smell of natural gas permeating several floors. In response, they contacted local utility workers to investigate the issue, as reported by federal regulators on Wednesday.

The preliminary findings from the National Transportation Safety Board (NTSB) shed light on the critical three-hour window between the initial report of a gas odor and the catastrophic blast that occurred in Bristol, just outside Philadelphia. Utility workers were present on-site for much of this time, and one worker traced the source of the leak to a valve located in the basement boiler room.

Despite the presence of utility personnel and witness accounts describing a heavy gas smell following the explosion, PECO, the utility company involved, stated at the time that it could not ascertain the cause of the explosion or whether its equipment played a role.

The explosion claimed the lives of two residents and an employee, injuring approximately 20 others, including one utility worker. This tragic event unfolded just days before Christmas, leading to a partial collapse of the building that trapped individuals inside. Emergency responders, staff, and even medics from a nearby hospital rushed to evacuate those in danger.

According to the report, Exelon, the parent company of PECO, shut off the gas supply to the facility nearly two hours after the explosion occurred. The reasons for this delay remain unclear.

Investigators are now focusing on Exelon’s pipeline safety management practices, including how they train personnel, their qualifications, and their response protocols for odor complaints.

In light of the new report, a PECO spokesperson acknowledged the necessity for “continuous improvement and vigilance” regarding the safe and reliable delivery of electric and natural gas services. The statement also expressed condolences to the victims, their families, displaced residents, and the broader community.

On December 23, a maintenance director at Bristol Health & Rehab Center reported the smell of natural gas in the basement and promptly contacted the utility company. A PECO worker arrived at the facility just before noon, approximately one hour after the odor was first detected. Staff members also reported smelling gas on the first and second floors.

An Exelon technician identified a leak at a meter set valve in the basement and requested assistance for repairs. A meter set comprises the meter, regulator, piping, valves, and fittings.

Subsequently, an Exelon foreman dispatched a meter services technician to address the issue, who arrived around 1:20 p.m. The explosion occurred approximately 55 minutes later, at around 2:15 p.m.

Federal inspectors have since tested the gas line and equipment, with some items sent to a laboratory for further analysis.

PHOTO: Damage from an explosion at Bristol Health & Rehab Center is seen, Dec. 24, 2025, in Bristol Township, Pa. (Monica Herndon/The Philadelphia Inquirer via AP, File)

Copyright 2026 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.

Hours before a tragic explosion devastated a Pennsylvania nursing home last month, staff members expressed growing concern over a strong smell of natural gas permeating several floors. In response, they contacted local utility workers to investigate the issue, as reported by federal regulators on Wednesday.

The preliminary findings from the National Transportation Safety Board (NTSB) shed light on the critical three-hour window between the initial report of a gas odor and the catastrophic blast that occurred in Bristol, just outside Philadelphia. Utility workers were present on-site for much of this time, and one worker traced the source of the leak to a valve located in the basement boiler room.

Despite the presence of utility personnel and witness accounts describing a heavy gas smell following the explosion, PECO, the utility company involved, stated at the time that it could not ascertain the cause of the explosion or whether its equipment played a role.

The explosion claimed the lives of two residents and an employee, injuring approximately 20 others, including one utility worker. This tragic event unfolded just days before Christmas, leading to a partial collapse of the building that trapped individuals inside. Emergency responders, staff, and even medics from a nearby hospital rushed to evacuate those in danger.

According to the report, Exelon, the parent company of PECO, shut off the gas supply to the facility nearly two hours after the explosion occurred. The reasons for this delay remain unclear.

Investigators are now focusing on Exelon’s pipeline safety management practices, including how they train personnel, their qualifications, and their response protocols for odor complaints.

In light of the new report, a PECO spokesperson acknowledged the necessity for “continuous improvement and vigilance” regarding the safe and reliable delivery of electric and natural gas services. The statement also expressed condolences to the victims, their families, displaced residents, and the broader community.

On December 23, a maintenance director at Bristol Health & Rehab Center reported the smell of natural gas in the basement and promptly contacted the utility company. A PECO worker arrived at the facility just before noon, approximately one hour after the odor was first detected. Staff members also reported smelling gas on the first and second floors.

An Exelon technician identified a leak at a meter set valve in the basement and requested assistance for repairs. A meter set comprises the meter, regulator, piping, valves, and fittings.

Subsequently, an Exelon foreman dispatched a meter services technician to address the issue, who arrived around 1:20 p.m. The explosion occurred approximately 55 minutes later, at around 2:15 p.m.

Federal inspectors have since tested the gas line and equipment, with some items sent to a laboratory for further analysis.

PHOTO: Damage from an explosion at Bristol Health & Rehab Center is seen, Dec. 24, 2025, in Bristol Township, Pa. (Monica Herndon/The Philadelphia Inquirer via AP, File)

Copyright 2026 Associated Press. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.