While landing, the aircraft hydroplanes and runs off the end of the runway in the grass.

Attributes
ACN	584035
Time
Date	200306
Day	Sun
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : ekm.airport
State Reference	IN
Altitude	agl single value : 0
Environment
Weather Elements	Thunderstorm
Light	Daylight
Aircraft 1
Controlling Facilities	tower : mia.tower
Operator	general aviation : personal
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	landing : roll
Flight Plan	None
Person 1
Affiliation	other
Function	flight crew : single pilot
Qualification	pilot : instrument pilot : multi engine pilot : commercial pilot : cfi
Experience	flight time last 90 days : 42 flight time total : 461 flight time type : 38
ASRS Report	584035
Events
Anomaly	excursion : runway inflight encounter : weather other anomaly
Independent Detector	other flight crewa
Resolutory Action	none taken : unable
Supplementary
Problem Areas	Flight Crew Human Performance Weather Aircraft
Primary Problem	Ambiguous

Narrative:

While en route to toledo, oh, a fast moving thunderstorm developed along our route, which was not indicated in any forecast. I decided to make a precautionary landing and allow the storm to pass due to the sudden high winds and rain. Upon touchdown, full braking was applied. Due to standing water on the runway, the aircraft hydroplaned and failed to come to a complete stop before the end of the asphalt. The aircraft came to a stop approximately 50 ft past the end of the runway in the grass.

Original NASA ASRS Text

Title: WHILE LNDG, THE ACFT HYDROPLANES AND RUNS OFF THE END OF THE RWY IN THE GRASS.

Narrative: WHILE ENRTE TO TOLEDO, OH, A FAST MOVING TSTM DEVELOPED ALONG OUR RTE, WHICH WAS NOT INDICATED IN ANY FORECAST. I DECIDED TO MAKE A PRECAUTIONARY LNDG AND ALLOW THE STORM TO PASS DUE TO THE SUDDEN HIGH WINDS AND RAIN. UPON TOUCHDOWN, FULL BRAKING WAS APPLIED. DUE TO STANDING WATER ON THE RWY, THE ACFT HYDROPLANED AND FAILED TO COME TO A COMPLETE STOP BEFORE THE END OF THE ASPHALT. THE ACFT CAME TO A STOP APPROX 50 FT PAST THE END OF THE RWY IN THE GRASS.

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.