AN MD80 DURING ENG CHANGE REQUIRES FORWARD ENG MOUNT YOKE REPLACEMENT BUT HAS NO MAINT MANUAL PROC. MOUNT REPLACED USING MOUNT BOLT REPLACEMENT PROC.

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AUG/XA/99 ACFT XYZ #2 ENG CHANGE. FORWARD MOUNT YOKE HAD CORROSION AND NEEDED CHANGING. COULDN'T FIND REPAIR AND REPLACE IN ACFT MAINT MANUAL; STRUCTURAL REPAIR MANUAL; OR OVERHAUL MANUAL. CALLED MAINT CTL. THEY GOT WITH ENGINEERING AND THEY GOT WITH DOUGLAS. AFTER DISCUSSION AMONGST THEMSELVES; THEY TOLD ME 71-20-3 IN THE ACFT MAINT MANUAL WAS INTENDED TO BE MY AUTH TO CHANGE THIS YOKE. I EXPLAINED TO THEM THAT REF IS FOR REPLACING THE YOKE MOUNTING BATTERIES ONLY; WITH A NOTE THAT SAYS DO ONLY 1 AT A TIME; SO THAT BOLT HOLE ALIGNMENT IS NOT DISTURBED. THEY TOLD ME THAT THIS REF IS WHAT WE HAVE BEEN USING FOR THIS JOB FOR YRS. I ASKED THEM FOR DOCUMENTATION TO SUPPORT THAT STATEMENT; BUT THEY REFUSED. ALL THE PARTS NEEDED TO COMPLETE THIS JOB WERE IN AND AFTER FIGHTING WITH THESE PEOPLE FOR 15 HRS; I TOLD MY SUPVR THAT I WOULD SIGN THIS OFF IF HE WOULD FOLLOW UP AND SOLVE THIS PROB SO WE WOULDN'T RUN INTO THIS AGAIN. AUG/XA/99 ACFT ZYX #2 ENG CHANGE YOKE GOUGED AND NEEDS REPLACED. I AM THE LEAD TECHNICIAN THAT GETS THE JOB AGAIN. STARTED THE SAME PROCESS AGAIN WITH THE SAME RESULT. THIS TIME I TOLD THEM THAT I WOULD PERFORM THE WORK BUT WOULD NOT SIGN IT OFF UNTIL THE PROPER PAPERWORK WAS IN HAND. AS IT TURNED OUT; BY THE TIME I WENT HOME THERE WAS NO PAPERWORK. SO; I PUT DOWN ON OUR NON ROUTINE PAPER THAT I INSTALLED THE BOLTS PER ACFT MAINT MANUAL 71-20-3. THAT WAY; THE BOLT TORQUE WAS VERIFIED BY INSPECTION AND DOCUMENTED. NEXT SHIFT CAME ON AND THE SUPVR IN CHARGE SIGNED OFF THE DISCREPANCY AND REFED MY SIGNOFF. HE CONVINCED INSPECTION TO SIGN OFF ON THE DISCREPANCY; AS THEIR AGREEMENT WITH THE SIT WAS REQUIRED. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE MD80 WAS THE LAST AIRPLANE WITH THE ENG MOUNT YOKE REPLACED USING THE BOLT REPLACEMENT PROC. THE RPTR SAID HE WILL POSITIVELY NOT SIGN OFF ANOTHER YOKE CHANGED WITH THE BOLT REPLACEMENT MAINT MANUAL PROC. THE RPTR STATED THE FOREMAN AND INSPECTOR FOREMAN ARE CONCERNED ABOUT THE SHOP WORK THAT MAY ARISE IF A PROC IS WRITTEN AND ADAPTED.