What was found
AT NORMAL POWER SETTINGS THE ENGINE RAN ROUGH AT 6000 TO 7000 FEET. REMOVED FUEL FLOW MANIFOLD VALVE AND INSTALLED NEW FUEL FLOW MANIFOLD VALVE. GROUND OPERATION OF THE ENGINE CHECKED NORMAL. PART SENT IN FOR WARRANTY.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
AT NORMAL POWER SETTINGS THE ENGINE RAN ROUGH AT 6000 TO 7000 FEET. REMOVED FUEL FLOW MANIFOLD VALVE AND INSTALLED NEW FUEL FLOW MANIFOLD VALVE. GROUND OPERATION OF THE ENGINE CHECKED NORMAL. PART SENT IN FOR WARRANTY.