As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
(CAN)INSTALLED TURBINE ON AIRCRAFT AND COMPLETED A GROUND RUN AND TEST FLIGHT. TURBINE CHECKED OK. A SECOND START WAS ATTEMPTED BUT THERE WAS NO NR UPON REACHING 30 PERCENT N1. ANOTHER START WAS ATTEMPTED,BUT AGAIN THE NR WOULD NOT ROTATE. TURBINE RETURNED TO SHOP.