Narrative:

On touchdown on runway 30L at cps, aircraft immediately skid off left side of runway in about a 20 degree right yaw. Departed runway about 1500 ft down and skid 2500 ft parallel to runway and then got aircraft back on runway. No persons were injured and only minor damage to aircraft. Temperature at time of landing was reported about 35 degrees, however it was found out later that low ground temperatures were at freezing. Dewpoint temperature spread 1 degree, wind 4 KTS, quartering tailwind, snow and ice had been removed from active runway several days before but remained in low piles at sides of runway. ATIS was reporting braking action on unused runway but no braking action was given on active runway leading us to believe braking action good. We later found out that braking action had not been tested for at least 3 hours prior to our landing. We also had heard from the lineman when we parked that a learjet had landed prior to us and had a 'wild ride' and skid sideways on runways. I guess the lear did not report this to tower and the tower could not see the runway due to fog, so we did not have this information on landing. My guess is that we hit black ice. It happened so fast there was nothing we could do to control it until the aircraft left the runway. After we got in the grass we paralleled the runway until we slowed down and then steered airplane onto runway.

Related reports:

Google
 

Original NASA ASRS Text

Title: LTT CPR JET SKIDDED OFF THE SIDE OF THE RWY AFTER LNDG DUE TO 'BLACK ICE.'

Narrative: ON TOUCHDOWN ON RWY 30L AT CPS, ACFT IMMEDIATELY SKID OFF L SIDE OF RWY IN ABOUT A 20 DEG R YAW. DEPARTED RWY ABOUT 1500 FT DOWN AND SKID 2500 FT PARALLEL TO RWY AND THEN GOT ACFT BACK ON RWY. NO PERSONS WERE INJURED AND ONLY MINOR DAMAGE TO ACFT. TEMP AT TIME OF LNDG WAS RPTED ABOUT 35 DEGS, HOWEVER IT WAS FOUND OUT LATER THAT LOW GND TEMPS WERE AT FREEZING. DEWPOINT TEMP SPREAD 1 DEG, WIND 4 KTS, QUARTERING TAILWIND, SNOW AND ICE HAD BEEN REMOVED FROM ACTIVE RWY SEVERAL DAYS BEFORE BUT REMAINED IN LOW PILES AT SIDES OF RWY. ATIS WAS RPTING BRAKING ACTION ON UNUSED RWY BUT NO BRAKING ACTION WAS GIVEN ON ACTIVE RWY LEADING US TO BELIEVE BRAKING ACTION GOOD. WE LATER FOUND OUT THAT BRAKING ACTION HAD NOT BEEN TESTED FOR AT LEAST 3 HRS PRIOR TO OUR LNDG. WE ALSO HAD HEARD FROM THE LINEMAN WHEN WE PARKED THAT A LEARJET HAD LANDED PRIOR TO US AND HAD A 'WILD RIDE' AND SKID SIDEWAYS ON RWYS. I GUESS THE LEAR DID NOT RPT THIS TO TWR AND THE TWR COULD NOT SEE THE RWY DUE TO FOG, SO WE DID NOT HAVE THIS INFO ON LNDG. MY GUESS IS THAT WE HIT BLACK ICE. IT HAPPENED SO FAST THERE WAS NOTHING WE COULD DO TO CTL IT UNTIL THE ACFT LEFT THE RWY. AFTER WE GOT IN THE GRASS WE PARALLELED THE RWY UNTIL WE SLOWED DOWN AND THEN STEERED AIRPLANE ONTO RWY.

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.