“IP [injured person] and two techs is working in RC4 prepping it for installation. Darren was inside the nacelle also to take pictures for a Q-sys report. Several techs were in the nacelle that morning, six to seven techs, Darren left. The team of three technicians left RC4 last. Kristian Laursen probably also started the idle pump and disengaged the rotor lock. In the office, IP was speaking to Henrik Kirkeby about the safety pins that were not correct on LO7. He was instructed to check these. IP goes to have lunch in the duty mess, eats alone. Other colleagues were in the duty mess, but they did not speak to each other. IP goes to the office to look for IL [installation lead] as he had a question regarding the Q-sys report. IL is not in the office and IP goes back into the nacelle to check the safety pins of the HSBM. He was confident that the rotor lock was still engaged. According to Darren, the door was open, and he did not check the idling tool. There were no chains on stairs/barriers/signs to warn of moving parts. There was no noise from the idle system. Normally it makes a lot of noise. IP first checked upper left cylinder and afterwards went to check the lower left cylinder, first visually using his touch. He could easily see the lock through the hole in the disc and proceeded to put his left arm through the brake disc and check the safety pin. It was OK. Torch was found next to the HSBM tool. Upon completion of the check, he could not retrieve his arm and he realised that the generator was moving, and he had no way to stop it.”
“I joined the vessel Sea Installer on 13 June. My job is to install wind turbine components. I started the job at 06.00 for tool box talk. From 06.15 to 10.00 we finished the turbine installation. I did reports until 10.00 to 11.30. I was tasked to check bearing pins by HSE (Henrik) to check pins were correctly locked. There is no set procedure for this. I had lunch and went to check the pins alone. I thought it was locked (the hub) as the chain across the entry was not locked and there was no noise coming from the idle system. Because of this, I thought there was no need to lock the hub. I thought it was locked and my colleagues had been inside prepping the hub for the next installation before lunch. Normally, there is no rule to say if you work on the deck alone but more emphasis on installation not preparations but good practice to work in pairs. Then went into the nacelle to complete the task thinking it was safe to work and proceeded to check the pins. I checked the locks on the top pin, it was fine. Then I proceeded to the bottom pin. I could easily see the lock from a hole in the disc, so I proceeded to check the lock by placing my left arm through the hole and check the lock. It was fine, but then I realised I could not move my arm. I then realised the disc was still moving slowly and I was going to lose my arm.”
“Load out and sea fasten nacelle.”
“During blade installation, the pin has an essential function requiring the pin to be locked correctly. A qualified HSBM superuser [such as the Claimant] is aware of this and has a clear own interest in ensuring that the pin is locked according to procedure.”
“because everything is grey, it can be hard to see movement.”