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|
Attributes | |
ACN | 261866 |
Time | |
Date | 199401 |
Day | Thu |
Local Time Of Day | 0601 To 1200 |
Place | |
Locale Reference | airport : i77 |
State Reference | OH |
Altitude | agl bound lower : 0 agl bound upper : 0 |
Environment | |
Flight Conditions | Marginal |
Light | Dawn |
Aircraft 1 | |
Operator | general aviation : corporate |
Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
Operating Under FAR Part | Part 91 |
Flight Phase | climbout : takeoff other |
Flight Plan | IFR |
Person 1 | |
Affiliation | Other |
Function | flight crew : single pilot |
Qualification | pilot : instrument pilot : commercial pilot : cfi pilot : atp |
Experience | flight time last 90 days : 93 flight time total : 5539 flight time type : 203 |
ASRS Report | 261866 |
Events | |
Anomaly | other anomaly other anomaly other other anomaly other |
Independent Detector | other flight crewa |
Resolutory Action | none taken : unable |
Consequence | other |
Supplementary | |
Primary Problem | Airport |
Air Traffic Incident | Pilot Deviation |
Situations | |
Airport | other physical facility procedure or policy : unspecified |
Narrative:
The takeoff was planned for an ice and snow covered runway. The runway braking action was estimated by the pilot in his car. The braking action was further confirmed by the pilot during the taxi to the runway and during engine runup. Due to the snow covered runway, a relatively low gross weight (5700 pound) takeoff was planned for a short (10-15 mi) flight to lunken (luk) airfield where considerably more runway (6100 ft vs 3500 ft) was available. The runway had 1-2 inches of light snow (temperature approximately 2 degrees F) and calm winds. Following a normal takeoff alignment, the brakes were applied to fully stop the aircraft prior to commencing the takeoff. The runway was clearly visible with all runway lights visible. As the engines were being throttled-up, the main wheels began to slide; the brakes were released and the aircraft rolled straight ahead several ft to assure alignment with the centerline. The engines were then being powered up further, when the right turbocharger apparently 'surged' (or came on-line very abruptly) causing the aircraft to yaw left. Right rudder was applied with no apparent effect. By this time, the aircraft had deviated far enough from the runway centerline that the pilot aborted the takeoff. However, the aircraft had yawed sufficiently that, within about 200 ft, the left main gear hit snow banked up on the runway. It was obvious the contact made by the left main gear would 'pull' the aircraft further off the runway, so the pilot applied up elevator to prevent an abrupt collision with a (possibly) very hard snowbank. When the nose gear came down on the far side of the snowbank, it subsequently stopped and the aircraft slid to a stop. The ice on the runway and snowbank had resulted from a snow and ice storm which occurred 2-3 days earlier. The snow was banked up 2-3 ft deep and was lined up on the outer 5-10 ft of the runway pavement.
Original NASA ASRS Text
Title: A CPR SMT PLT SLID OFF THE SIDE OF AN ICY, SNOW COVERED RWY.
Narrative: THE TKOF WAS PLANNED FOR AN ICE AND SNOW COVERED RWY. THE RWY BRAKING ACTION WAS ESTIMATED BY THE PLT IN HIS CAR. THE BRAKING ACTION WAS FURTHER CONFIRMED BY THE PLT DURING THE TAXI TO THE RWY AND DURING ENG RUNUP. DUE TO THE SNOW COVERED RWY, A RELATIVELY LOW GROSS WT (5700 LB) TKOF WAS PLANNED FOR A SHORT (10-15 MI) FLT TO LUNKEN (LUK) AIRFIELD WHERE CONSIDERABLY MORE RWY (6100 FT VS 3500 FT) WAS AVAILABLE. THE RWY HAD 1-2 INCHES OF LIGHT SNOW (TEMP APPROX 2 DEGS F) AND CALM WINDS. FOLLOWING A NORMAL TKOF ALIGNMENT, THE BRAKES WERE APPLIED TO FULLY STOP THE ACFT PRIOR TO COMMENCING THE TKOF. THE RWY WAS CLEARLY VISIBLE WITH ALL RWY LIGHTS VISIBLE. AS THE ENGS WERE BEING THROTTLED-UP, THE MAIN WHEELS BEGAN TO SLIDE; THE BRAKES WERE RELEASED AND THE ACFT ROLLED STRAIGHT AHEAD SEVERAL FT TO ASSURE ALIGNMENT WITH THE CTRLINE. THE ENGS WERE THEN BEING POWERED UP FURTHER, WHEN THE R TURBOCHARGER APPARENTLY 'SURGED' (OR CAME ON-LINE VERY ABRUPTLY) CAUSING THE ACFT TO YAW L. R RUDDER WAS APPLIED WITH NO APPARENT EFFECT. BY THIS TIME, THE ACFT HAD DEVIATED FAR ENOUGH FROM THE RWY CTRLINE THAT THE PLT ABORTED THE TKOF. HOWEVER, THE ACFT HAD YAWED SUFFICIENTLY THAT, WITHIN ABOUT 200 FT, THE L MAIN GEAR HIT SNOW BANKED UP ON THE RWY. IT WAS OBVIOUS THE CONTACT MADE BY THE L MAIN GEAR WOULD 'PULL' THE ACFT FURTHER OFF THE RWY, SO THE PLT APPLIED UP ELEVATOR TO PREVENT AN ABRUPT COLLISION WITH A (POSSIBLY) VERY HARD SNOWBANK. WHEN THE NOSE GEAR CAME DOWN ON THE FAR SIDE OF THE SNOWBANK, IT SUBSEQUENTLY STOPPED AND THE ACFT SLID TO A STOP. THE ICE ON THE RWY AND SNOWBANK HAD RESULTED FROM A SNOW AND ICE STORM WHICH OCCURRED 2-3 DAYS EARLIER. THE SNOW WAS BANKED UP 2-3 FT DEEP AND WAS LINED UP ON THE OUTER 5-10 FT OF THE RWY PAVEMENT.
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.