Narrative:

I served as captain and PIC of flight on jul/93. This was service from atl-hsv. I was assisted by first officer who was flying at the time. The flight proceeded normally to hsv. While on base leg to 18L we received a windshear alert from tower. I observed a rainshower over 18L and that 18R was dry. I then asked tower for clearance to land on 18R. Clearance was granted. I asked for the winds for 18R and was told they were the same as 18L. I retuned the ILS frequencys for 18R and ran the before landing checklist. I also reset the bug speed from 135 to 140 KTS in order to account for the windshear alert. As we turned final, for 18R we could see rainshowers over the field. The approach end of 18R appeared to be dry. Final approach proceeded normally. The aircraft touched down on the main gear, on speed, and within the touchdown zone. The nose gear came down shortly after the main gear. Autospoilers deployed and reverse thrust was initiated. As we began the landing roll, the rain became heavy. The aircraft began to drift to the right. I observed first officer attempting to correct the drift with rudder, differential braking and aileron. I also observed the aircraft nose begin to turn to the left as the aircraft continued to drift to the right and the braking was ineffective. I then took command of the aircraft controls and attempted to arrest the drift. The aircraft continued to drift and began a smooth turn to the left turning approximately 160 degrees, exiting the runway tail first coming to a stop on the right side. We shutdown the engines, briefed the flight attendants. Passenger deplaned normally out the rear stairs. The aircraft seems to have hydroplaned on the runway, making aircraft control impossible.

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Original NASA ASRS Text

Title: MLG HYDROPLANED ON LNDG. RWY EXCURSION.

Narrative: I SERVED AS CAPT AND PIC OF FLT ON JUL/93. THIS WAS SVC FROM ATL-HSV. I WAS ASSISTED BY FO WHO WAS FLYING AT THE TIME. THE FLT PROCEEDED NORMALLY TO HSV. WHILE ON BASE LEG TO 18L WE RECEIVED A WINDSHEAR ALERT FROM TWR. I OBSERVED A RAINSHOWER OVER 18L AND THAT 18R WAS DRY. I THEN ASKED TWR FOR CLRNC TO LAND ON 18R. CLRNC WAS GRANTED. I ASKED FOR THE WINDS FOR 18R AND WAS TOLD THEY WERE THE SAME AS 18L. I RETUNED THE ILS FREQS FOR 18R AND RAN THE BEFORE LNDG CHKLIST. I ALSO RESET THE BUG SPD FROM 135 TO 140 KTS IN ORDER TO ACCOUNT FOR THE WINDSHEAR ALERT. AS WE TURNED FINAL, FOR 18R WE COULD SEE RAINSHOWERS OVER THE FIELD. THE APCH END OF 18R APPEARED TO BE DRY. FINAL APCH PROCEEDED NORMALLY. THE ACFT TOUCHED DOWN ON THE MAIN GEAR, ON SPD, AND WITHIN THE TOUCHDOWN ZONE. THE NOSE GEAR CAME DOWN SHORTLY AFTER THE MAIN GEAR. AUTOSPOILERS DEPLOYED AND REVERSE THRUST WAS INITIATED. AS WE BEGAN THE LNDG ROLL, THE RAIN BECAME HVY. THE ACFT BEGAN TO DRIFT TO THE R. I OBSERVED FO ATTEMPTING TO CORRECT THE DRIFT WITH RUDDER, DIFFERENTIAL BRAKING AND AILERON. I ALSO OBSERVED THE ACFT NOSE BEGIN TO TURN TO THE L AS THE ACFT CONTINUED TO DRIFT TO THE R AND THE BRAKING WAS INEFFECTIVE. I THEN TOOK COMMAND OF THE ACFT CTLS AND ATTEMPTED TO ARREST THE DRIFT. THE ACFT CONTINUED TO DRIFT AND BEGAN A SMOOTH TURN TO THE L TURNING APPROX 160 DEGS, EXITING THE RWY TAIL FIRST COMING TO A STOP ON THE R SIDE. WE SHUTDOWN THE ENGS, BRIEFED THE FLT ATTENDANTS. PAX DEPLANED NORMALLY OUT THE REAR STAIRS. THE ACFT SEEMS TO HAVE HYDROPLANED ON THE RWY, MAKING ACFT CTL IMPOSSIBLE.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.