Thankfully no one was injured!
Lift accidents happen more than you would think.
OSHA regs cover Inspections and Training-
Lifts must be inspected annually by a certified tech.
Operators need to have yearly training
Owners should keep a log.
Depending on what state you reside, lifts may be covered under state building codes.
The UK has taken the safe course in regards to 2 post lifts-
"It was agreed with representatives of the MVR industry, through the MVR Forum, that arm locking systems should be fitted to all these lifts. Therefore, any remaining 2-post lifts without arm locking should now have been taken out of use or scrapped." Sensible action.
And they have identified certain Chinese Models-
"Problems with the design, installation, use and maintenance of arm locking mechanisms continue to cause concern in newer machinery. Some new Chinese-manufactured 2-post lifts have been found where the locking mechanism has been poorly manufactured and failed to work from installation or within a short period of use. Further details are available in Sector Information Minute 03/2008/12" "Defective locking devices identified on modern 2-post lifts".
An employee injury could mean OSHA reports, inspectors, fines, lawsuits, and pain and suffering. Logbooks going back yrs. Warning and safety decals in place...etc...
Resources-
https://www.apta.com/mc/annual/previous/201...stein_Steve.pdf UK -
http://www.hse.gov.uk/mvr/topics/fallofflifts.htm