As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LGA-IAD FLIGHT 3802 CREW REPORTED, UNABLE TO REDUCE NR 1 PROP RPM ON CLIMBOUT, AND UNABLE TO SHUT DOWN NR 1 ENGINE WITH CONDITION LEVER AT FUEL OFF. ENGINE SHUT DOWN ACCOMPLISHED WITH FUEL OFF HANDLE. MAINTENANCE REPLACED SPRING STRUT IN ACCORDANCE WITH ENGINE RIGGING MANUAL PART 2. AIRCRAFT GROUND RUN TO 900 RPM. ENGINE OPERATED AND SHUT DOWN NORMALLY. OPERATIONAL CHECK GOOD, AIRCRAFT RETURNED TO SERVICE.