Fall through surface or existing opening, unspecified · Fractures and dislocations
At a glance
Federal OSHA recorded a severe workplace injury
at Abbott & Sons Construction LLC, US Army Research Lab, ADELPHI, MARYLAND 20783
on — Fractures and dislocations, affecting the upper and lower limb(s).
Final narrative
An employee fell through a skylight and sustained a dislocated shoulder and a broken lower leg and ankle.
An employee was power washing a metal tank from an elevated platform. They fell through a gap between the platform and the tank. The employee landed on the ground and sustained fractures to their ankles and feet.
An employee was installing a metal roof when he stepped on a skylight. The employee fell through the skylight to the ground, resulting in head and shoulder fractures.
An employee was replacing an HVAC unit in a residential home. While he was in the attic space above the garage, the wood he was walking on broke, causing the employee to fall through the sheetrock to the concrete floor below. The employee bumped his head and sustained a shoulder injury as well as a broken ankle.
An employee was putting a tarp on a water tank while standing on a trailer. She lost her footing and fell through the trailer bed, striking the corner of the trailer bed. The employee sustained internal bleeding.
An employee was repairing a sub-floor in a residential house that had water and fire damage. The employee fell through the sub-floor and landed in the basement, resulting in spinal fractures that required hospitalization.
More severe injuries in this industry (NAICS 238160)
An employee was delivering materials. He was doing his pre-delivery inspection on the roof of the jobsite (a warehouse) when he fell through a plexiglass skylight. He landed on his feet on the concrete floor 14 feet below. The employee sustained fractures to his spine, left ulnar/radius, and right heel. The employee required surgery.
An employee was standing on a multi-purpose ladder installing head flashing over a window. Their feet were approximately 6 feet off the ground and three rungs from the top. The employee lost their grip on the drill they were using and the ladder tipped over. The employee fell from the ladder to the ground, resulting in a fractured left wrist, bruised chest, and lacerations to their face and lip.
An employee fell through a hole in the ceiling and suffered injuries to his side and right arm. When he fell, a piece of concrete fell with him and struck his arm. He was hospitalized.
An employee was laying glue on the corner of a three-story commercial flat roof to apply new thermoplastic polyolefin roofing material. He lost his balance and fell at least 35 feet to the concrete ground below. The employee sustained fractures.
An employee was ascending a flight of stairs after exiting their vehicle in an adjacent employee parking lot. The employee stepped to the right to avoid another employee on the left who was descending the stairs. The employee lost their balance and fell on the stairs. They were hospitalized with a laceration/abrasion to their chin, a fractured left humerus, and bruising to their left knee.
A mail handler was moving BMCs on the loading dock when they fell from the loading dock to the concrete ground below. The employee was hospitalized with head trauma.
An employee was on an A-frame ladder while preforming demolition of a ceiling. A section of HVAC ductwork fell on the employee and knocked them to the ground approximately 12 feet below. The employee was hospitalized with a concussion and lacerations.
On the morning of July 24, 2025, an employee was conducting synthesis of a highly toxic experimental chemical (nerve agent) in a chemical fume hood. The operation was completed at approximately 11:30 AM. The employee was exposed to the chemical and began experiencing symptoms of illness/poisoning around 1:30 PM and was hospitalized.