What was found
SHORTLY AFTER TAKEOFF, GOT AMBER EFIS MISCOMPARE MSG FOLLOWED BY AMBER IAS & ALT FLAGS ON BOTH PFD`S. AFTER CONSULTING ACP & MX, DIVERTED. PRIOR TO LANDING HEARD "POP" SOUND & ALL INSTRUMENTS RETURNED TO NORMAL. ON POST FLT, DISCOVERED PINS FOR RT LARGE SQUARE STATIC COVER INSTALLED. COVER ITSELF WAS MISSING. NO INDICATIONS OF WING DAMAGE OR ENG INGESTION. ALL INDICATIONS DURING TAKEOFF ROLL WERE NORMAL. ADDITIONAL INFO UPON FURTHER POSTFLIGHT INS, THERE APPEARS TO BE DAMAGE TO THE RT HORIZ STABILIZER JUST OUTSIDE DEICE BOOT. (K)