exploded crankcase
 

HI
I HAVE A ZDZ 40 THAT I WAS FLYING LAST SEASON WHEN I HEARD A LOUD BANG AND IT DIED WHAN I LANDED I NOTICED TWO HOLES IN THE CRANKCASE AND DIDNT KNOW WHAT CAUSED IT SO I WAS FLYING OTHER PLANES THE REST OF THE SEASON THEN I READ A POST THAT SAID SOMETHING INSIDE BREAKS LOOSE AND CAUSES THIS I AM INCLUDING TWO PICTURES SO YOU CAN SEE THE DAMAGE AND LET ME KNOW WHAT I SHOULD DO ABOUT IT THANK YOU
MIKE M

RE: exploded crankcase
 

Mike,
Obvious screw damages, you can see threads.
I would suggest sending in for eval and repair estimates.
It appears like an older model with Bing carb installed.
Please print and fill out the Service Request Form on our FAQ section.
Use RMA 42102
Thanks,