After engine 4 failed in Air France Flight 66, the airliner (an Airbus 380) landed at Goose Bay in Canada. I am aware that following that, the failed engine was removed and then something "nonfunctional" was installed in its place "to balance the weight". This looks like a strange story to me:
- What was this "non-working replacement" and where did they get it? It still needs to have the required weight, shape and mountings. Was it quickly manufactured? The source referenced by Wikipedia even calls it a "spare engine". Did they install the engine intended for a different airliner?
- In general if the goal was just to have a non-operational engine on the wing, why not leave the failed no. 4 engine where it was? Or was there a risk of it falling to pieces during the ferry flight?