When # 2 engine was shut down (stricly against SOP's)
I'll stick my neck out again and relay what was doing the rounds a few years back. #2 engine ingested neat fuel and recovered, it happen for a second time and the crew decided that this engine was no longer serviceable and shut it down.
I'm not an expert on airflow however the info is from the same chap who spoke about the source of the ignition. He's an expert on flying the aircraft and he did not criticise the action.