Ontario: An employee of D&G Logging Ltd. was at work in Big Pic Forest on a Quadco de-limber machine (used to remove branches from trees).
He was attempting to repair a leak on the hydraulic cylinder on the boom of the de-limber machine which was mounted on a CAT excavator.
While removing the hydraulic line from the cylinder, the boom of the machine was suspended but was not blocked to prevent it from movement.
The worker was positioned over the base of the machine and under the boom. This positioning was being used to reach the hydraulic hose from the back of the cylinder.
While removing the hose from the cylinder, the pressure holding the boom in an elevated position quickly released, causing the boom to drop and crush the worker between the boom and the cab of the machine. The worker died as a result of the injuries.
The boom was not blocked or otherwise immobilized to prevent it from moving once the machine had been taken out of service.
D&G Logging Ltd. was fined $80,000.