RPTR; MAINT TECHNICIAN; DID NOT AGREE WITH PROC USED BY MAINT SUPVR (APPLICATION OF TAPE) TO ADDRESS VIBRATION ISSUE.

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FLT X INBOUND TO ZZZ1; ACFT X LOG #1 UPON ARR: 'CREW RPTS SIGNIFICANT VIBRATION IN TAIL SECTION ON CLBOUT AT 280 KTS. SLOWED TO 260 DEGS AND VIBRATION DECREASED. MEET AND DEBRIEF CREW UPON ARR.' VIBRATION TROUBLESHOOTING MAINT TIP 53-005 WAS PULLED UP. BUT IF YOU FOLLOW THE DIAGRAM FOR THAT PARTICULAR PROB; 'SIGNIFICANT VIBRATION IN TAIL SECTION ON CLBOUT AT 280 KTS.' THE DIAGRAM LEADS YOU TO PERFORM AMM TASK 27-34-00-820-003-A; AND AMM TASK 27-34-00-200-002; WHICH WAS NOT PERFORMED. THE MAINT SUPVR INSTRUCTED ME TO GET A LIFT TRUCK AND PERFORM INSPECTION OF THE TAIL SECTION; RUDDER AND ELEVATORS FOR ANY SEALS MISSING OR DAMAGED. BEFORE I DID THAT I CLBED UP AND DID A VISUAL OF THE JACKSCREW AND COMPONENTS UP IN THE TAIL SECTION FOR ANY DISCREPANCIES AND I FOUND NONE. I THEN GOT THE LIFT TRUCK AND INSPECTED THE ELEVATORS AND RUDDER FOR ANY DAMAGED OR MISSING SEALS AS I WAS INSTRUCTED TO. I FOUND NO DAMAGED SEALS OR MISSING SEALS. THE SUPVR THEN PROCEEDED TO DRIVE HIS TRUCK TO THE FUSELAGE OF THE AIRPLANE AND THEN TOLD ME WITH HIS HELP TO SPEED TAPE PANEL #197GB4 L-HAND AS HE SAID HE FOUND A GAP BTWN THE PANEL AND FUSELAGE OF THE ACFT. ACCORDING TO LOG; THAT PANEL 198GB R-HAND HAD A SEAL REPLACED DUE TO AIRFRAME VIBRATION WRITE-UP. LOG #1 ON THIS ACFT IS A TAIL SECTION VIBRATION; AND IN MY OPINION WAS SIGNED OFF WRONG. THE PROC AMM 27-34-00 SHOULD HAVE BEEN PERFORMED. TODAY; THE ACFT IS GNDED IN ZZZ2. THE SUPVR WAS IN THE OFFICE SIGNING OFF LOG #1 ACFT X FLT X INBOUND FLT Y OUTBOUND TO ZZZ2. I ASKED HIM DON'T PUT MY FILE NUMBER ON THAT WRITE-UP AS I WAS NOT COMFORTABLE WITH THE SIT AND HURRIEDNESS OF IT. HE IGNORED ME AND ENTERED IT AGAINST MY PROTEST. I WAS NOT COMFORTABLE WITH THE AIRWORTHINESS OR THE SAFETY OF THE ACFT.