What was found
THIS HELICOPTER IS FACTORY NEW FROM MANUFACTUER AND THE SECOND HELICOPTER WE FOUND THIS SAME ISSUE ON. ALL OF THE ROCKER ARMS AND PUSHROD CAPS WERE FOUND TO HAVE SIGNIFICANT SCORING WHERE THE MAKE CONTACT WITH EACH OTHER DURING ITS FIRST 100HR INSPECTION WHILE PREFORMING LYCOMING SB-388. BELOW IS WHAT WAS ENTERED INTO THE AIRCRAFT RECORDS. "DURING SB 388 INSPECTION IT WAS FOUND THAT ALL CYLINDER PUSHRODS AND ROCKER ARMS HAD SIGNIFICANT SCORING/GROOVES IN THEM. CONTACTED LYCOMING SERVICE REP AND SUBMITTED WARRANTY CLAIM (SERVICE REQUEST 34018) FOR PARTS. REMOVED DAMAGED PUSHRODS (X8) PN: 15F28835-30 AND ROCKER ARMS (X8) PN: 17F19357-OH. INSTALLED 4 SERVICEABLE PUSHRODS PN: 15F28835-30 AND 4 RECONDITIONED ROCKER ARMS PN: 17F19357 ON CYLINDERS #2 & 4. INSTALLED 4 NEW PUSHRODS PN: 15F28835-30 AND 4 RECONDITIONED ROCKER ARMS PN: 17F19357-OH ON CYLINDERS #1 & 3 PER LYCOMING OMM SEC. 5." THIS AIRCRAFT WAS PUT ON AN OIL ANALYSIS PROGRAM WITH NO FURTHER DEFECTS NOTED. WE BELIEVE THERE IS INSUFFICIENT LUBRICATION BETWEEN THESE TWO POINTS DURING INITIAL RUN UP OR DURING THE DE-PICKLING PROCESS.