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Pilot of a C180 nosed over during landing roll due to a patch of soft snow on a lake trail on which he was landing to go ice fishing. The aircraft received only minor damage to the vertical fin plastic cap.
| Attributes | |
| ACN | 365217 |
| Time | |
| Date | 199703 |
| Day | Sat |
| Local Time Of Day | 0601 To 1200 |
| Place | |
| Locale Reference | atc facility : bde airport : rrt |
| State Reference | MN |
| Altitude | agl bound lower : 0 agl bound upper : 0 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Controlling Facilities | tower : swf |
| Operator | general aviation : personal |
| Make Model Name | Cessna 180 Skywagon |
| Operating Under FAR Part | Part 91 |
| Flight Phase | landing other |
| Flight Plan | VFR |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : cfi pilot : atp |
| Experience | flight time last 90 days : 20 flight time total : 21000 flight time type : 2000 |
| ASRS Report | 365217 |
| Events | |
| Anomaly | other anomaly other anomaly other |
| Independent Detector | other flight crewa |
| Resolutory Action | other |
| Consequence | other Other |
| Supplementary | |
| Primary Problem | Flight Crew Human Performance |
| Air Traffic Incident | Pilot Deviation |
Narrative:
While landing on a trail on lake of the woods, on wheels, encountered soft spot which pulled the aircraft off landing area, into deep snow. Caused the aircraft to nose over. Should have put skis on aircraft, or had an aircraft on skis to evaluate the landing conditions. Callback conversation with reporter revealed the following information: reporter stated that he was flying a C180 with large 'tundra' type main tires and was landing on a clearing on a frozen lake bed with a snow layer. The left main ran into a soft area in the snow where the sun had melted the snow, causing the wheel to drag the aircraft speed down quickly causing a very slow nose-over. The reporter stopped the engine prior to roll-over which saved the engine and propeller damage. There was only minor damage to the vertical stabilizer top cap. The reporter taxied the aircraft back to the airport of origin, 26 mi, since he was not sure of the full extent of the aircraft damage so did not want to risk flight until it was known.
Original NASA ASRS Text
Title: PLT OF A C180 NOSED OVER DURING LNDG ROLL DUE TO A PATCH OF SOFT SNOW ON A LAKE TRAIL ON WHICH HE WAS LNDG TO GO ICE FISHING. THE ACFT RECEIVED ONLY MINOR DAMAGE TO THE VERT FIN PLASTIC CAP.
Narrative: WHILE LNDG ON A TRAIL ON LAKE OF THE WOODS, ON WHEELS, ENCOUNTERED SOFT SPOT WHICH PULLED THE ACFT OFF LNDG AREA, INTO DEEP SNOW. CAUSED THE ACFT TO NOSE OVER. SHOULD HAVE PUT SKIS ON ACFT, OR HAD AN ACFT ON SKIS TO EVALUATE THE LNDG CONDITIONS. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: RPTR STATED THAT HE WAS FLYING A C180 WITH LARGE 'TUNDRA' TYPE MAIN TIRES AND WAS LNDG ON A CLRING ON A FROZEN LAKE BED WITH A SNOW LAYER. THE L MAIN RAN INTO A SOFT AREA IN THE SNOW WHERE THE SUN HAD MELTED THE SNOW, CAUSING THE WHEEL TO DRAG THE ACFT SPD DOWN QUICKLY CAUSING A VERY SLOW NOSE-OVER. THE RPTR STOPPED THE ENG PRIOR TO ROLL-OVER WHICH SAVED THE ENG AND PROP DAMAGE. THERE WAS ONLY MINOR DAMAGE TO THE VERT STABILIZER TOP CAP. THE RPTR TAXIED THE ACFT BACK TO THE ARPT OF ORIGIN, 26 MI, SINCE HE WAS NOT SURE OF THE FULL EXTENT OF THE ACFT DAMAGE SO DID NOT WANT TO RISK FLT UNTIL IT WAS KNOWN.
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.