Pump ears/converter snout don't usually break on a 727 so it'll be interesting to see what the cause is ?
But no forward and no reverse means you either lost pressure pressure or a shaft broke ?
You're right that it is not a common failure but it does happen. I've repaired two 727's with broken pump gear lugs that I recall over the years. This is the reason for the max lug pump gears sold be vendors. 904's are more likely to break the converter snout.
