Narrative:

Flight was a part 135 IFR flight with a crew of 2 and 2 passenger from ack to hpn. The WX at hpn was reported to be winds 090 degrees at 12 KTS gusting to 19 KTS; 3/4 mi visibility; -south broken; ceiling W300. Temperature/dew point 00/01 degrees C; altimeter 29.86; ILS runway 16 in use. Braking action advisories were in effect; but no braking action reports were given on the ATIS. Landing performance figures were calculated for slope and wet runway and were determined to be within the runway requirements. This aircraft is equipped with thrust reversers; but they were inoperative and MEL'ed in accordance with maintenance procedures. The surfaces were reported to be covered with light snow. The prior arriving aircraft reported the braking action as poor. The reported RVR was 5000 ft and the runway was in sight a little more than a mi out. The approach and landing were normal and at touchdown maximum braking was applied and continued throughout the rollout. The aircraft exited the end of the runway into a grassy/muddy area approximately 100-150 ft from the departure end of the runway. The nose gear collapsed. There were no injuries. The crew and passenger departed the aircraft without incident and the emergency equipment arrived shortly thereafter. Possible contributing factors were: rapidly changing conditions; nil braking conditions; anti-skid cycling could not be felt throughout the rollout; speed brakes may not have been deployed; duty day was at 11 1/2 hours.

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Original NASA ASRS Text

Title: A C560 ULTRA LNDG AT HPN WITH NIL BRAKING; RAN OFF THE RWY END COLLAPSING THE NOSE GEAR.

Narrative: FLT WAS A PART 135 IFR FLT WITH A CREW OF 2 AND 2 PAX FROM ACK TO HPN. THE WX AT HPN WAS RPTED TO BE WINDS 090 DEGS AT 12 KTS GUSTING TO 19 KTS; 3/4 MI VISIBILITY; -S BROKEN; CEILING W300. TEMP/DEW POINT 00/01 DEGS C; ALTIMETER 29.86; ILS RWY 16 IN USE. BRAKING ACTION ADVISORIES WERE IN EFFECT; BUT NO BRAKING ACTION RPTS WERE GIVEN ON THE ATIS. LNDG PERFORMANCE FIGURES WERE CALCULATED FOR SLOPE AND WET RWY AND WERE DETERMINED TO BE WITHIN THE RWY REQUIREMENTS. THIS ACFT IS EQUIPPED WITH THRUST REVERSERS; BUT THEY WERE INOP AND MEL'ED IN ACCORDANCE WITH MAINT PROCS. THE SURFACES WERE RPTED TO BE COVERED WITH LIGHT SNOW. THE PRIOR ARRIVING ACFT RPTED THE BRAKING ACTION AS POOR. THE RPTED RVR WAS 5000 FT AND THE RWY WAS IN SIGHT A LITTLE MORE THAN A MI OUT. THE APCH AND LNDG WERE NORMAL AND AT TOUCHDOWN MAX BRAKING WAS APPLIED AND CONTINUED THROUGHOUT THE ROLLOUT. THE ACFT EXITED THE END OF THE RWY INTO A GRASSY/MUDDY AREA APPROX 100-150 FT FROM THE DEP END OF THE RWY. THE NOSE GEAR COLLAPSED. THERE WERE NO INJURIES. THE CREW AND PAX DEPARTED THE ACFT WITHOUT INCIDENT AND THE EMER EQUIP ARRIVED SHORTLY THEREAFTER. POSSIBLE CONTRIBUTING FACTORS WERE: RAPIDLY CHANGING CONDITIONS; NIL BRAKING CONDITIONS; ANTI-SKID CYCLING COULD NOT BE FELT THROUGHOUT THE ROLLOUT; SPD BRAKES MAY NOT HAVE BEEN DEPLOYED; DUTY DAY WAS AT 11 1/2 HRS.

Data retrieved from NASA's ASRS site as of January 2009 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.