A B737-200 AFTER RUDDER PWR UNIT REPLACEMENT THE VERT STABILIZER WAS CLOSED PRIOR TO FINAL INSPECTION. FINAL INSPECTION SIGNED OFF BY INSPECTION SUPVR.

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AT BEGINNING OF SHIFT TURNOVER FROM PREVIOUS SHIFT; I RECEIVED AN INCOMPLETE WORK PACKAGE. THE PREVIOUS SHIFT HAD SIGNED OFF THE TAIL SECTION FOR WORK AND INSPECTION COMPLETE. HOWEVER; WHEN I EXAMINED THE PAPERWORK ON THE BLOCK FOR RUDDER PCU INSTALLATION; OPS CHK AND FINAL OPS CHK; THIS SECTION HAD NOT BEEN SIGNED OFF. THE ABOVE ACFT PANELS (ACCESS) WERE CLOSED TO THAT AREA. APPARENTLY NO INSPECTION HAD BEEN DONE. I INFORMED MY SUPVR MR VYU WXXX WHO I THINK STAMPED OR SIGNED THIS SECTION OFF. I JUST WENT THROUGH AN EARLIER SIMILAR SIT WITH ACR #XYZ ABOUT A MONTH AGO WHICH I DID RPT TO YOUR OFFICE. THIS SIT HAS NOT YET BEEN CORRECTED AND STILL REMAINS A VALID ARGUMENT WITH ADMINISTRATION AND MAINT. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR STATED THE SAME JOB CARDS THAT ALLOWED A B737-300 TO BE RELEASED INTO SVC WITH INCORRECT HYD LINE CONNECTIONS ALMOST ALLOWED A RUDDER PWR UNIT TO BE RELEASED WITH NO INSTALLATION INSPECTION. THE RPTR SAID THE VERT STABILIZER WAS CLOSED UP AND THE FINAL INSPECTION CARD WAS SIGNED OFF WHEN IT WAS DISCOVERED THE RUDDER PWR UNIT INSTALLATION AND TEST INSPECTION WAS NOT SIGNED. THE RPTR STATED THAT HE REFUSED TO SIGN FOR THE INSPECTION UNLESS THE VERT STABILIZER ACCESS PANEL WAS OPENED TO INSPECT THE INSTALLATION. THE RPTR SAID THE JOB CARDS WHICH CAUSE THIS PROB NEED REVISION; BUT THE COMPANY IS RESISTING ANY CHANGE. THE VERT STABILIZER WAS OPENED AND THE INSPECTION SUPVR SIGNED FOR THE INSTALLATION INSPECTION.