HAA crash all survived 11th Jan 2022

[TeeS]

Hi Wrench, there is no warning/caption in the event of a hydraulic actuator jam on the 135.
Cheers
TeeS

[wrench1]

Originally Posted by TeeS

Hi Wrench, there is no warning/caption in the event of a hydraulic actuator jam on the 135.

No. Unlike the BO105 system with its dreaded micro-switches and "Block" light, the 135 has none or nothing similar. Technically, it would be very difficult to have an actuator jam due to the system design as there are internal mechanisms that will bypass a jammed hyd control spool and allow continued flight control movement. This all happens automatically as I recall and I believe there is a method to test this feature externally. But that would require a dive into the books to jog the gray cells. As for the rest of the system, the only caution light is HYD PRESS for each system which does get checked during a pre-flight check.

[gipsymagpie]