As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER TAKEOFF AND GEAR RETRACTED NR 1 ENGINE BETA LOCKOUT SYSTEM ACTIVATED. TORQUE REACHED 98 PERCENT ON INDICATOR, REDUCED TORQUE BY RETARDING POWER AND CONDITION LEVER TO 900 RPM. FOUND SWITCH 6141-S3 BAD. REPLACED SWITCH. RESET BETA SWITCHES, RAN AIRCRAFT PER WORK CARD 61-20-010, OPS CHECK GOOD.