As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW NOTED PROP RPM ON LT PROPELLER WELL BELOW TAKEOFF SETTING SHORTLY AFTER V1 ROTATION. RETURNED TO DTW AND ACCOMPLISHED QRH FOR PROP MALFUNCTION. MAINTENANCE INSPECTED LT CONDITION LEVER RIGGING, FOUND OUT OF RIG, RE-RIGED THE LT CONDITION LEVER IAW 76-10-00-5 SAAB MM. PERFORMED APR AND PROP OVERSPEED AND PCU HOLD CHECK, MAX RUN CTOT RUNS. OPS CHECK GOOD.