What was found
FLT#661, JFK-BGI. (AIRCRAFT PERFORMED AN AIR TURN BACK TO JFK) 'DURING CLIMB OUT AROUND FL270 WE RECEIVED 1ST CAUTION ON ECAM FOR ENG 1 HIGH VIBRATION THIS CONTINUED ON AND OFF WITH HIGHEST NUMBER OF 6.2 FOR ENG 1-N2 VIBRATION IT KEPT REPEATING FOR THE DURATION OF THE RETURN TO JFK QRH COMPLETED; VERIFIED ENG #1 VIBRATION REPORT SHOWS TO BE 6.0 C/W TSM 71-00-00-810-873A NO FAULTS WITH EXTERNAL HARDWARE. NO MAINTENANCE ACTION REQUIRED. DUE TO CONTINUOUS FAULT APPEARING VERIFIED ELECTRICAL CONNECTOR P10 AND FWD VIBRATION SENSOR IAW TSM 77-32-00 HAS NO SHORT PINS AND W03 WIRE HARNESS IS INTACT. REF LOG PAGE 3832669 ITEM 2 CONUS RESTRICTION APPLIED.'