As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT 7798 HPN IAD RETURNED TO HPN DUE TO THE DEICE TIMER LIGHT ILLUMINATING, THE WX DID NOT PERMIT THE FLIGHT TO CONTINUE TO IAD. REPLACED RT I/B WING LEADING EDGE DUE TO 3" BUBBLE IN BOOT, TAIL DEICE VALVE AND INSTALLED NEW PRESSURE SWITCH FOR TAIL.