I don't want to take the blame for an accident.
Is there a reason you're not going to take the blame for it?
I'm afraid that if I take the blame, I'll get into trouble
I can understand how it would be scary. It's important to be responsible for something you have done, though.
Alright, I'll take the blame but I'm going to get someone else to say it was their fault.
That would be just as dishonest as not taking the blame. You shouldn't try to get other people into trouble; you should own up to your mistake and apologize.