Runway excursion in a night operation.

Attributes
ACN	283852
Time
Date	199409
Day	Sat
Local Time Of Day	1801 To 2400
Place
Locale Reference	airport : ugn
State Reference	IL
Altitude	agl bound lower : 0 agl bound upper : 0
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Operator	common carrier : air taxi
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	descent : approach landing other
Flight Plan	IFR
Person 1
Affiliation	Other
Function	flight crew : captain oversight : pic
Qualification	pilot : atp
Experience	flight time last 90 days : 180 flight time total : 4500 flight time type : 800
ASRS Report	283852
Person 2
Affiliation	Other
Function	flight crew : first officer
Qualification	pilot : commercial pilot : instrument
Experience	flight time last 90 days : 300 flight time total : 1800 flight time type : 230
ASRS Report	283850
Events
Anomaly	non adherence : published procedure other anomaly other anomaly other other anomaly other
Independent Detector	other flight crewa
Resolutory Action	none taken : unable
Consequence	Other
Supplementary
Primary Problem	Weather
Air Traffic Incident	Pilot Deviation other

Narrative:

I continued tracking the localizer and GS (it was nighttime and an unfamiliar airport) until 1 1/2-2 mi final. During this phase of flight we again briefed the possibility of hydroplaning. At this time I began my descent below the GS attempting to land on the end of runway. I ended touching down at the 1000 ft markers. We touched down at reference-5. After touchdown I deployed the spoilers and started to apply braking I realized that we weren't stopping so I applied harder pressure on the brakes. It felt like the anti-skid was operating at this time. Then the aircraft started to veer off to the left side of the runway so I released some brake pressure and with rudder pressure regained control of the aircraft. This was an indication to me that we were hydroplaning. I continued with braking but it seemed like it wasn't stopping and I realized that we were going to run off the end of the runway. As we decelerated braking became more effective. I maintained centerline and slowed down as much as I could. We rolled approximately 50 ft off the end of the runway. The aircraft continued rolling with ease. So I made a medium left turn. 180 degrees and taxied back onto runway 23. No damage was done to the aircraft and no runway lights were taken out. We taxied to the FBO and after a thorough inspection of the aircraft and calling the chief pilot we continued with the next leg of the flight.

Original NASA ASRS Text

Title: RWY EXCURSION IN A NIGHT OP.

Narrative: I CONTINUED TRACKING THE LOC AND GS (IT WAS NIGHTTIME AND AN UNFAMILIAR ARPT) UNTIL 1 1/2-2 MI FINAL. DURING THIS PHASE OF FLT WE AGAIN BRIEFED THE POSSIBILITY OF HYDROPLANING. AT THIS TIME I BEGAN MY DSCNT BELOW THE GS ATTEMPTING TO LAND ON THE END OF RWY. I ENDED TOUCHING DOWN AT THE 1000 FT MARKERS. WE TOUCHED DOWN AT REF-5. AFTER TOUCHDOWN I DEPLOYED THE SPOILERS AND STARTED TO APPLY BRAKING I REALIZED THAT WE WEREN'T STOPPING SO I APPLIED HARDER PRESSURE ON THE BRAKES. IT FELT LIKE THE ANTI-SKID WAS OPERATING AT THIS TIME. THEN THE ACFT STARTED TO VEER OFF TO THE L SIDE OF THE RWY SO I RELEASED SOME BRAKE PRESSURE AND WITH RUDDER PRESSURE REGAINED CTL OF THE ACFT. THIS WAS AN INDICATION TO ME THAT WE WERE HYDROPLANING. I CONTINUED WITH BRAKING BUT IT SEEMED LIKE IT WASN'T STOPPING AND I REALIZED THAT WE WERE GOING TO RUN OFF THE END OF THE RWY. AS WE DECELERATED BRAKING BECAME MORE EFFECTIVE. I MAINTAINED CTRLINE AND SLOWED DOWN AS MUCH AS I COULD. WE ROLLED APPROX 50 FT OFF THE END OF THE RWY. THE ACFT CONTINUED ROLLING WITH EASE. SO I MADE A MEDIUM L TURN. 180 DEGS AND TAXIED BACK ONTO RWY 23. NO DAMAGE WAS DONE TO THE ACFT AND NO RWY LIGHTS WERE TAKEN OUT. WE TAXIED TO THE FBO AND AFTER A THOROUGH INSPECTION OF THE ACFT AND CALLING THE CHIEF PLT WE CONTINUED WITH THE NEXT LEG OF THE FLT.

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.