My 90 went down

[q8hobbytime]

I was flying my 90 today for the first time after the test flight and i was doing forward flights it was OK but when i did tic tocs went up and then it looked up went inverted and crashed what would cause i doint have metal frames that might cause the glitch and my tail servo is on the back so the linkage wont rib any metal guys please i need inputs

[flyinfool]

Do you have PCM and if so are the fail safes set up?
If the fail safes are set up with throttle to idle or cut is that what happened?
Did the throttle go to idle before the crash.

You mention that you do not have metal frames, what do you have for frames?
Carbon is also electrically conductive and will cause the same issues as metal frames.

Did you get carried away with control inputs and bog the head?
That was how I just put my 90 in, No fault of the heli, I just got carried away with the inputs and tried to use more power than the engine had to give, it looked very much like a lockout but was just me.

[q8hobbytime]

Flyinfool thank you for the reply
yes i do run pcm and the throtle did not go to idel
i was doing tictocs so when i push the levatore forward it just looked did a full loop and went inverted and stayed there for cpl of seconeds then boom to the ground it was a very slow crash as i was watching inverted and going slowly to the ground

[RobRoy]

Sounds like maybe your canopy came loose, and bound your swash, preventing it from being able to move back to pull you back up.

[flyinfool]

If the throttle did not go to idle then it was not a lockout.
A lockout would have gone to the failsafe settings which should have been engine to idle.
Check the battery, switch, (regulator if you have one), and all wiring and connectors of the electrical power system for problems, It sounds more like the receiver was shut off in flight.
Do you have a heavy duty power switch? It is not that uncommon to have an intermittent switch especially with a standard switch on a heli.