As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
BOTH AIRSPEED INDICATORS, CAPT/FO, ARE GIVING ERRATIC INIDICATION IN FLT. (CAPTAIN DECLARED EMERGENCY) FOUND CLOGGED PITOT (F/O) LINE. PRESSURIZED F/O PITOT LINE WITH COMPRESSED AIR AND CLEANED OUT DEBRIS FROM LINE. PERFORMED PITOT STATIC CHECK IAW CK MANUAL EX 341100-LKC-10000-001. OPS CK AND LEAK CK FOUND GOOD.