B767-300 and 300 ER
Flight Crew Air Transport Pilot (ATP)
Aircraft Equipment Problem Less Severe; Deviation - Speed All Types; Deviation / Discrepancy - Procedural FAR; Inflight Event / Encounter Weather / Turbulence
Aircraft; Weather
We were doing the published missed approach for Runway 24 in BDL due to a windshear aural warning. We were lucky to be flying a new 767 aircraft with the newly installed predictive windshear equipment. This equipment is only installed on our newer 767 aircraft and that may have saved the day. Predictive windshear gave us approximately a 5 second head start on the windshear. Once the windshear aural stopped we cleaned up the aircraft and continued on the published missed approach. ATC assigned us 3000 feet and we maintained 3000 feet. The radar was attenuated and we could not see the next rain cell ahead. We entered a rain cell with moderate rain and turbulence which caused a sudden increase in airspeed from 230 knots to 275 knots. I pulled the thrust levers back to flight idle as the airspeed appeared that it might exceed 250 knots but the aircraft continued to accelerate to 275 knots. This brief momentary bump in airspeed only lasted a couple of seconds before the airspeed reduced back below 250 knots. I'm filing this report to document that the aircraft did exceed 250 KIAS below 10;000 feet while encountering windshear. I hope our company will install predictive windshear on all aircraft. I have replayed the scenario in my mind many times and the predictive windshear equipment played a huge role in the success our initial windshear recovery. Secondly; I've been on the 757 and 767 for 24 years and there has always been a problem with radar attenuation. I tried reducing the radar gain; but that did not help. Having the ability to have the Doppler Radar uplinked to the aircraft could be a lifesaving tool. We never saw either rain cell that we encountered due to radar attenuation.
[Report Narrative Contained No Additional Information].
The flight crew of a B767 that encountered a significant windshear event on arrival to BDL provided testimonials to the performance of the installed predictive windshear system.