What was found
VIBRATION FELT IN REAR ACFT APPROX 260 ALTITUDE & 310 SPEED. MX FOUND AFT LAV/POTABLE WATER SERVICING DOORS LOOSE. LATCHES ADJUSTED. ACFT FAILED FUNCTIONAL TEST FLT. RETURNED, FOUND RT BLUE & RT YELLOW ELEVATOR SERVOS OUT OF LIMITS. R&R RT BLUE & RT YELLOW ELEVATOR SERVOS. PASSED OPS CHECKS. ACFT FAILED FUNCTIONAL TEST FLT. ACFT RETURNED. FOUND ACTUATOR S/N 0587, OUT OF RIG. R&I NEW THS ACTUATOR S/N 0075. OPS TEST FAILED, OUT OF RIG. REMOVED THS ACTUATOR S/N 0075 & INSTALLED NEW THS ACTUATOR, OPS TEST PASSED. FOUND BEARINGS & ROD ENDS WORN, INCLUDING LT BLUE ELEV SERVO, LT GREEN ELEV SERVO. ROD ENDS & BEARINGS REPLACED. ACFT PASSED FUNCTIONAL TEST FLT. ACTUATOR P/N 47145-121, S/N 0587.