What was found
PDIS 724 34-14 5635 07JUL19 MEM FACT U LOGPAGES:2750947 CLIMBING THRU 5000FT, NOTICED AIRSPEED DISAGREEMENT OF 20KTS BETWEEN PFDS. RAN THE UNREALIABLE AIRSPEED QRH. CAPTAINS PFD STANDBY A/S AGREED. RETURN TO MEM FACT 08JUL19 04:17 MEM U DURING TROBLESHOOTING FOUND FO'S PITOT TUBE BLOCKED WITH DEBRIS, FLUSHED THE FO'S SIDE ADC SYSTEM, CLEARED DEBRIS OF THE F/O'S PITOT TUBE AND SYSTEM TEST NORMAL, FOUND NO AIRSPEED SPLIT AT THIS TIME. REF: FIM 34-10-00 P.122 AND AMM 34-10-00-05. DURING TROBLESHOOTING FOUND FO'S PITOT TUBE BLOCKED WITH DEBRIS, FLUSHED THE FO'S SIDE ADC SYSTEM, CLEARED DEBRIS OF THE F/O'S PITOT TUBE AND SYSTEM TEST NORMAL, FOUND NO AIRSPEED SPLIT AT THIS TIME. REF: FIM 34-10-00 P.122 AND AMM 34-10-00-05.