I started out as a Helicopter Mechanic in the Army and went to A&P school on the GI Bill at a community college while taking flying lessons. I now fly for the airlines. Although I don't "wrench" anymore, I believe the knowledge I gained from the schooling is invaluable at so many levels! I am sure it will make you a better accident investigator, pilot, mechanic and critical thinker. Is it necessary, probably not but is it valuable? Absolutely!