Service difficulty reports · 4
Matched to this aircraft by N-number and event date, checked against the reported serial number, make and model.
SDR 99ZZZX2721Fcu · malfunctionedDURING FLIGHT, THE FUEL PRESSURE WAS NOTED TO FLUCTUATE ERRATICALLY. REPLACING THE FUEL CONTROL UNIT RESOLVED THE PROBLEM.SDR 99ZZZX2437Camshaft · chippedDURING A ROUTINE 100-HOUR INSPECTION EXCESSIVE METAL WAS FOUND IN THE ENGINE OIL FILTER. FURTHER INVESTIGATION REVEALED A CHIPPED CAM LOBE AND LIFTER.SDR 98ZZZX4462Valve Guide · wornDURING A ROUTINE COMPRESSION CHECK, LEAKAGE WAS FOUND PAST THE INTAKE VALVE ON THE NR 6 CYLINDER. THE REMOVED CYLINDER, INTAKE VALVE AND GUIDE WERE FOUND WORN OUT. THE VALVE LASH WAS ALSO FOUND TO BE EXCESSIVE ON THE NR'S 2, 4, AND 6 CYLINDERS. THE PUSH RODSDR 98ZZZX4461Valve Guide · wornDURING A ROUTINE COMPRESSION CHECK, EXCESSIVE LEAKAGE PAST THE PISTON RINGS WAS FOUND ON THE THE NR 2 CYLINDER. THE REMOVED CLYINDER WAS FOUND WORN OUT AND THE PISTON RINGS STUCK IN THE RING GROOVES. SUBMITTER SUGGESTED POSSIBLE CAUSE AS EXCESSIVE LEAD SLUDG