Originally Posted by
STIorSTD
Right which rarely happens nowadays and there’s the 2 minute cooldown on the checklist.
this was a number 1 engine problem so the associated smoke was probably because something blew. Not the everyday fume event just an unfortunate side effect of whatever happened on that flight.
https://www.pprune.org/engineers-tec...-bearings.html
According to ATC audio it sounds like a compressor stall, or some loud bang, and it seems the smoke came later in the air return. In short, one could be spring loaded to turn the PACKs off and RAM AIR on if compressed for time. That would likely be my go to rather than continue to troubleshoot if tie was tight instead of delaying to run a checklist. Same with an electrical fire or smoke, if short on time, GEN LINE 1 OFF and RAM AIR ON. Force the ELEC EMERG CONFIG.