Originally Posted by
henra
Honest question: Do you see any indication in this pattern (from level flight to -5000fpm at 150kts+ in 15s) which would indicate anything else other than LOC (in the extended sense that it was not so much a mechanical loss of control but a loss of spatial orientation, aka incipient 'Graveyard Spiral')?
I can share your thoughts... the interesting question is why? But there will be lot of factors: flight planning, commercial pressure, IFR certification for the operator, pilot’s recency for IFR flight with that type etc. E.g. Most of the pilots have done a minor mistake that HDG bug is not straight forward, when they select HDG mode... and even notify that kind of thing after entering Adhoc IMC and correct it with that speed/altitude combination during SP Ops... It might be very challenging... and cause confusion...