I was building the LEGO Bionicle Toa Terrain Crawler, (8927), when I saw at the back of the instructions a photo of an alternate helicopter-type build. Where can I find the instructions on how to build this model?
You can find them in The LEGO Customer Service site. Search for the set you'd like to rebuild, and you can download the instructions. Some Technic sets include a few parts or stickers that you won't need while building the main model. https://www.lego.com/en-my/service/help/bricks-and-sets/building-instructions/additional-instructions-blt2c8ffc2c6ffa17b8#:~:text=You%20can%20find%20them%20right,while%20building%20the%20main%20model.