BOSTON — On May 23, 2026, a career firefighter assigned to Rescue 2 died after falling about 20 feet from a third-floor enclosed rear porch at a three-alarm residential fire in Massachusetts. During overhaul, he pushed and pulled on a smoldering wall section beneath a window. The section broke free, and he fell with it to the asphalt below.
The fire started when lithium-ion batteries stored in a plastic toolbox went into thermal runaway, according to the department’s cause-and-origin investigation. A structural engineer later found the porch had been built and modified poorly. The NIOSH investigation is a reminder that overhaul carries real structural risk when fire has compromised a building that was already poorly built.
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Key investigation findings
The porch wall lacked the framing that holds a wall together. A structural engineer found the failed section had no king studs, jack studs, header, sill plate or cripple studs, and appeared to rely mainly on T1-11 sheathing for strength. The porch was originally open and later enclosed, and the roof above it was likely a later addition. Fire charred the adjacent framing, and suppression and overhaul removed interior plywood finishes, further reducing stability. The engineer concluded that relatively minor lateral forces could cause the failure.
Crews knew the rear of the building was compromised, but overhaul on the porch continued. Firefighters reported spongy porch flooring at 8:23 p.m., and overhaul began on the third-floor porch at 8:25 p.m. At 8:32 p.m., the Rescue 2 officer told command the rear stairway was severely compromised, and dispatch broadcast an urgent caution at 8:33 p.m. Multiple firefighters were on the porch and stairway when that warning went out. The report does not describe a formal post-fire building survey before overhaul began.
Protective equipment came off during overhaul. The firefighter removed his SCBA while working, and his helmet chin strap was not securely fastened. The force of the fall dislodged his helmet before he hit the asphalt. NIOSH points to the tendency to dress down once active fire is knocked down, noting that smoke during overhaul can contain carbon monoxide, hydrogen cyanide and carcinogens. The report does not say whether those exposures played a role here.
Renovations went well beyond what the permits covered. City records show a 1922 permit for a second stairway, but the porch enclosure included far more work, including walls, windows and roof changes. A permit application to convert the house to a two-family dwelling was denied, yet the building was operated as a multifamily occupancy. NIOSH noted that code enforcement and inspections were the responsibility of the city’s Inspectional Services Department, not the fire department.
Recommended department actions
Treat overhaul as a structural hazard, not a cleanup task. NIOSH says to use extreme caution when a building has taken extensive fire and water, because charred members weaken, water adds weight and contents add load. Fatigue during physically demanding overhaul can also erode situational awareness. Officers should keep reassessing the building’s condition and share what they find with command, as discussed under NFPA 1550.
Assign a post-fire building survey before overhaul starts. A fire officer, division or group supervisor, or safety officer should lead a limited, qualified crew to identify compromised areas, renovation-related deficiencies, safe work areas and exclusion zones. Findings go to the incident commander, who can choose alternatives such as hydraulic overhaul or waiting for shoring. NIOSH also recommends incident safety officer training for company officers so more people can perform this role.
Keep full PPE on during overhaul in any hazard zone. NFPA 1550 calls for protective equipment suited to the task and for the incident commander to set the PPE level for hot, warm and cold zones. That means SCBA and secured helmets stay on. When command can’t directly see compliance, the supervising officer is responsible for checking.
Build working relationships with code enforcement. NIOSH says municipalities should enforce fire and life safety codes on residential renovations. NFPA 1750 recommends that fire departments maintain ties with the agencies that enforce building codes, so permits, violations and renovation information reach operations. That exchange can alert crews to work that changes how a building will behave in a fire.
Training discussion questions
- At 8:23 p.m., crews reported spongy flooring on the rear porch. What would you want to know, and what would you do, before assigning overhaul to that area?
- Who on your fireground performs a post-fire building survey, and what findings would move you from hands-on to hydraulic overhaul?
- What does your department expect for SCBA and helmet use during overhaul, and who verifies it when the incident commander can’t see the work area?
