CL65 FLC DOES GAR DUE TO WINDSHEAR ADVISORY.

Narrative

CONVECTIVE ACTIVITY WAS IN THE VICINITY AS APCH VECTORED US FOR THE ILS RWY 18R IN VMC. APCHING FAF; WE SWITCHED TO TWR AND ATC IMMEDIATELY ISSUED A WINDSHEAR ALERT DUE TO ARPT BOUNDARY WIND CONDITIONS. ATC ALSO ADVISED THAT THE PRECEDING ACFT HAD GAINED 20 KTS ON SHORT FINAL. WITH OUR GEAR STILL UP AND FLAPS AT 20 DEGS; WE ELECTED TO DISCONTINUE THE APCH. DURING THE GAR; WE ENCOUNTERED A BRIEF PERIOD OF MODERATE TURB DURING WHICH THE AIRSPD MAY HAVE REACHED 220 KIAS WHILE AT FLAPS 8 DEGS; WHICH SLIGHTLY EXCEEDS THE 215 KT MAX SPD LIMIT FOR FLAPS 8 DEGS. A MAINT WRITE-UP WAS COMPLETED AND MAINT CTL NOTIFIED. A MECH PERFORMED THE REQUIRED INSPECTION. NO DAMAGE WAS NOTED AND THE ACFT WAS RETURNED TO SVC. SEVERAL ITEMS OF NOTE: 1) THE GAR PROC DID NOT GO SMOOTHLY BECAUSE: A) THE FO (THE PF) WAS NEW TO THE ACFT; B) WE VERY SELDOM DO A REAL-WORLD GAR AND WHENEVER WE PRACTICE THE MANEUVER IN THE SIMULATOR IT'S ALWAYS INITIATED FROM DA/MDA OR LOWER AND WHILE FULLY CONFIGURED. 2) THE FLAP SPD LIMITATIONS HAVE BEEN LOWERED 15-20 KTS; DEPENDING ON FLAP POS. HOWEVER; THE EFIS BARBER POLE THAT APPEARS ON THE AIRSPD TAPE ON THE PFD OF SOME OF OUR OLDER ACFT STILL REFLECTS THE HIGHER LIMITING AIRSPDS. SO; IN OUR CASE; IT WAS POSSIBLE TO EXCEED 215 KTS BUT STILL BE BELOW THE BARBER POLE AND THEREFORE NOT HEAR THE OVERSPD CLACKER EVEN THOUGH YOU COULD BE AS MUCH AS 15 KTS ABOVE THE NEW FLAPS 8 DEGS OR 20 DEGS LIMITING SPDS.