Originally Posted by
EMAW
the 135 also has a vibration monitor that is visible to the pilots.
all variations of the 135-140-145 have the display.
It’s the High Pressure & Low Pressure Vibration Indicators on the EICAS.
the AE3007 A1 & A1/3 FADEC variants both provide the data,
it’s essentially begins life as a GE helicopter engine, and the last folks to bolt on their stuff is Allison/Rolls creating an AE3007.
The two most common FADEC versions are the A1 and the A1/3
good little engine.