As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AFTER TAKE OFF, THE CREW NOTICED THE LT ENGINE TORQUE WAS OVER RED LINE, POWER WAS REDUCED. MAINTENANCE LATER DISCOVERED THAT PART OF THE LOW PITCH ARM WAS BROKEN OFF. IT WAS DETERMINED THAT THE NUT PN MS21042L4 HOLDING THE PIN PN 100-960036-1 HAD BECOME LOOSE AND THIS ALLOWED THE LOW PITCH ARM TO CONTACT THE PROP BULKHEAD AND BREAK OFF. THE POWER SECTION WAS REPLACED FOR LIGHT OVERHAUL.