As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN) AFTER ENGINE COMBUSTION LINER WAS REPLACED, THE PROPELLER ASSEMBLY WAS BEING REINSTALLED ON THE AIRCRAFT. ONE OF THE PROP MOUNTING BOLTS SHEARED OFF BEFORE ACHIEVING THE TORQUE VALUES IN THE AMM. PROPELLER ANF BOLTS REPLACED. AIRCRAFT RETURNED TO SERVICE.