penchris said:For 7 years (until 2004) I worked as a electro-mechanical engineer and ride safety inspector for a well know theme-park chain (not Disney). There are several different restraint mechanism types, but most comman are hydraulic lock-release types. These restraints get deteriorated seals and become weak with age (partially opening or being loose on small persons), or can also fail suddenly without notice. Just because the ride was safety inspected by technicians that day, doesn't mean the very next ride run won't have a failure. The operator is the last critical link in the guest safety chain, but the passenger is the one who has everything to lose. Always check. Check lap belts for fraying around the buckles and clips, and for secure fit. A loose lap belt on a child can cause seat belt injuries to the abdomen similar to a motor-vehicle accident. On shoulder or lap bar restraints, use both arms and give a solid resistive push on the restraint. There should be no give or bounce, and no more that 3-4 inches of play between the restraint and body.
The original poster absolutely did the right thing by doing whatever was necessary to get the attention of the CM running the ride, and later alerting the supervisor. I am glad the situation was responded to and there was no resulting injury. From the description, unless the CM failed to push the restraint down at all...it sounds like that restraint was on the short path to mechanical failure.
Another note-worthy point...While safety devices do fail, 90% of guest injuries are the result of not listening and following verbal and posted safety instructions. Every parent should impress on their kids that following the rules on a ride is not optional....and heed that advice too. Ride and have fun, but be safe.
Penchris - Thanks for posting that. I always assumed there were sensor systems that would prevent launch if it detected failure in any of the systems, including restraints....Apparently this is a false assumption? Aren't there at least sensors that detect & alert operators that a restraint is not engaged?
I know the inspection process for amusements is pretty rigid (I do pressure vessel inspection/QC & have looked a little into amusement QC/inspection for the future) and that has always reassured me of the mechanical safety of amusements. I had always assumed it was human error that caused failure in the systems......
I always double/triple check my restraints & thought I was just being O/C. Guess I better keep doing that (I love Coasters too much to stop riding them completely!)