As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ENGINE WILL NOT PERFORM PROPERLY DURING ENGINE START AND IDLE OPERATION. INSTALLED (4 DEFECTIVE NEW ENGINE DRIVEN FUEL PUMPS (PN 200F-5006) BY THE DIRECTION OF FIELD TECH. FINALLY RECEIVED MFG APPROVAL TO INSTALL A DIFFERENT MFR ENGINE DRIVEN FUEL PUMP O/H PN RG9080J8A/M WHICH FIXED ENGINE HARD STARTING AND ROUGH IDLE OPERATION.