It could be months before officials know what caused a house to collapse in Wahiawa.
The Honolulu Fire Department says five workers were renovating the home when it happened Tuesday afternoon.
A 30-year-old man suffered a serious knee injury after his legs were trapped under the rafters.
Several agencies, including Honolulu police and fire departments, the city and state, are looking into the incident. Inspectors returned to Walker Avenue Wednesday.
Because a worker was hurt, the state’s Occupational Safety and Health Division (HIOSH) has also opened an investigation.
It will review what the workplace was like and whether all safety rules were followed.
“We do note that for every construction work site, the contractor is supposed to be doing a job hazard analysis,” said Linda Chu Takayama, director of the state Department of Labor and Industrial Relations. “It entails cataloguing safety requirements for that work site.”
Sources close to the investigation tell us the workers were attempting to raise the house.
HFD says the name of the contractor, as provided to investigators, is KPT. The company is not listed on the state’s website for licensed contractors.
Investigators say they still have not been able to reach the contractor or the homeowners.