As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLIGHT ATTENDANT ADVISED COCKPIT INFLIGHT THAT CHATTER HEARD FROM E-E BAY ON TAKEOFF ROLL. NO INFLIGHT RECUR. BEFORE TAKEOFF, THEY LOST BOTH SLIDING WINDOW HEAT AND PITOT TUBE HEAT. EXACT PITOT TUBE UNRECALLED. ACCOMPLISHED BPCU BITE REF MM, RT PWR CHANNEL FAULT: CT LOOP GND. ACCOMPLISHED AMM24-20-00 PG 1 55 CK OF RT GCU FOUND WIRE CKS AT ALL 4 TEST POINTS GOOD. REPLACED RT GCU, SYSTEM CHECKS OKAY.