sorry!!!
after flying on the various beasts of the 737 tree since 1992---
i have to really think hard to remember any time i have had to use the QRH "in anger" as the irish would say.
once as first officer on a 200 cargo combi, we had an oil filter bypass light---captain reacted slowly because he didn't want the passengers to feel any adverse yaw whilst shutting down the engine (and he didn't want to return to Bethel), so by the time we shut it down and completed the checklist, we were closer to anchorage. heard later that it was indeed an actual blockage of the filter by metal bits of the engine starting to eat itself. only a slight vibration as we reduced the thrust. all else was smooth as silk.
other than that, i think the only thing that caused a real use of the QRH was a double pack trip climbing out of Reno, Nevada and a picture screen failure on the first officer's side. (funny--now that i remember--same first officer). they would not reset, so we turned back to the airport of departure. low enough and quick enough to where we didn't even get close to the rubber jungle. as to the screen failure, i initially told the first officer to keep flying--he could look at my screen!! ha. but it was cavok though night and i finally took the airplane and landed. mx simply reracked the box down stairs and it worked like a charm for the next flight to IAD.
and that is the beauty of the beast. over 10800 hours on the beast and i must dig deep to pull up any QRH items.
as for the simulator sessions!! bloody hell, it could make someone want to quit flying!! the flight controls is the most complicated in my opinion and has gone through some interesting changes over the years. very easy to get tied up into an incorrect checklist there.
great airplane--the real QRH's on the airplane might have spiders living in the rings.