Have had several 727 No. 2 engine compressor stall episodes that resulted in lenghty delays: EA back in the 70s LGW-ATL and most recently GSO-ATL on DL about a week before they retired the type - got a $75 voucher for that one!
Best one, however, was a 727 true catastrophic failure on No. 3 rolling at DFW enroute to TUC. The engine went "thud' and the whole airframe vibrated. They pulled all power and we rolled off on a high-speed and stopped. The OBL opened the cockpit door to ask what happened and the 3rd officer just threw up his hands ??
They towed us back to the gate and we got to watch them climb on the engine for about about an hour before they gave up and towed it away. It was pretty clear that aircraft wasn't flying again that day.