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Private pilot of small aircraft sel made an off airport forced landing due to engine power loss. Subsequent taxi on the lake resulted in the aircraft breaking through the lake ice.
| Attributes | |
| ACN | 288379 |
| Time | |
| Date | 199411 |
| Day | Sun |
| Local Time Of Day | 1201 To 1800 |
| Place | |
| Locale Reference | atc facility : bgo airport : bgq |
| State Reference | AK |
| Altitude | agl bound lower : 0 agl bound upper : 100 |
| Environment | |
| Flight Conditions | VMC |
| Light | Daylight |
| Aircraft 1 | |
| Operator | general aviation : instructional |
| Make Model Name | Any Unknown or Unlisted Aircraft Manufacturer |
| Operating Under FAR Part | Part 91 |
| Flight Phase | cruise other ground other : taxi |
| Flight Plan | None |
| Person 1 | |
| Affiliation | Other |
| Function | flight crew : single pilot |
| Qualification | pilot : private |
| Experience | flight time last 90 days : 12 flight time total : 200 flight time type : 150 |
| ASRS Report | 288379 |
| Events | |
| Anomaly | aircraft equipment problem : critical other anomaly other anomaly other |
| Independent Detector | aircraft equipment other aircraft equipment : unspecified other flight crewa |
| Resolutory Action | flight crew : declared emergency other |
| Consequence | other |
| Supplementary | |
| Primary Problem | Aircraft |
Narrative:
During a low level pass over a frozen lake, engine RPM dropped and could not be brought back up by use of throttle with 30 degree flaps and 100 ft AGL. A forced landing was executed. After taxiing to a hard snow-less area, full power was restored (fuel-line possible carburetor ice) a takeoff was attempted. During the takeoff I observed non sufficient airspeed, I then pulled back on the throttle in order to make a 180 degree and return to my starting point. At this point the left main gear and nose gear broke through the ice. Corrective actions may be to avoid low RPM. Flight in cold WX which was a possible factor to the loss of RPM. Corrective actions for breaking through the ice would be to walk the takeoff area better. If the ice is too thin, leave the plane where it sits till the ice gets thicker.
Original NASA ASRS Text
Title: PVT PLT OF SMA SEL MADE AN OFF ARPT FORCED LNDG DUE TO ENG PWR LOSS. SUBSEQUENT TAXI ON THE LAKE RESULTED IN THE ACFT BREAKING THROUGH THE LAKE ICE.
Narrative: DURING A LOW LEVEL PASS OVER A FROZEN LAKE, ENG RPM DROPPED AND COULD NOT BE BROUGHT BACK UP BY USE OF THROTTLE WITH 30 DEG FLAPS AND 100 FT AGL. A FORCED LNDG WAS EXECUTED. AFTER TAXIING TO A HARD SNOW-LESS AREA, FULL PWR WAS RESTORED (FUEL-LINE POSSIBLE CARB ICE) A TKOF WAS ATTEMPTED. DURING THE TKOF I OBSERVED NON SUFFICIENT AIRSPD, I THEN PULLED BACK ON THE THROTTLE IN ORDER TO MAKE A 180 DEG AND RETURN TO MY STARTING POINT. AT THIS POINT THE L MAIN GEAR AND NOSE GEAR BROKE THROUGH THE ICE. CORRECTIVE ACTIONS MAY BE TO AVOID LOW RPM. FLT IN COLD WX WHICH WAS A POSSIBLE FACTOR TO THE LOSS OF RPM. CORRECTIVE ACTIONS FOR BREAKING THROUGH THE ICE WOULD BE TO WALK THE TKOF AREA BETTER. IF THE ICE IS TOO THIN, LEAVE THE PLANE WHERE IT SITS TILL THE ICE GETS THICKER.
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.