As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT INSTALLATION, GOVERNOR WOULD NOT PRODUCE PARTIAL POWER TOPPING. REMOVED AND HAND CARRIED TO ALLIED SIGNAL BENDIX FOR INVESTIGATION. UPON TESTING AND DISASSEMBLY, VERIFIED INCORRECT SIZED PG ORIFACE. UNIT DID NOT MEET SPECS ON BENCH. ALLIED SIGNAL INVESTIGATION TO CORRECT ISSUE.