ASN Wikibase Occurrence # 285096
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| Date: | Saturday 31 March 2007 |
| Time: | 18:05 LT |
| Type: |  Zenair CH 601 HD |
| Owner/operator: | Private |
| Registration: | N601J |
| MSN: | 6-1125 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Arlington, Washington -
 United States of America
|
| Phase: | Unknown |
| Nature: | Private |
| Departure airport: | Arlington Municipal Airport, WA (AWO/KAWO) |
| Arlington Municipal Airport, WA (AWO/KAWO) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The pilot was in the process of aligning the aircraft to enter the downwind for landing when he decided that there were too many aircraft in the pattern and that he would maneuver to the west of the field until the number of aircraft practicing landings was reduced. As he turned away from the airport, he reduced his power to about 1,850 to 1,950 rpm (about 1,500 rpm below normal cruise), and then began to loiter to the west of the traffic pattern. Soon thereafter the aircraft's engine quit, and the pilot began looking for a place to make a forced landing. During the landing sequence, the pilot had to maneuver over some power lines, and just after he did so, the aircraft touched down on some soft terrain and flipped over onto its back. The pilot did not apply carburetor heat when the engine lost power, and because he had not listened to the Automated Weather Observing System (AWOS), he was unaware that at the time of the power loss there was only a one degree difference between the temperature and the dew point. According to the DOT/FAA/CT-82/44 Carburetor Icing Probability Chart, the pilot was operating in ambient conditions where serious carburetor icing could be expected at both glide and cruise power.
Probable Cause: The pilot's failure to apply carburetor heat when the engine lost power while being operated at a reduced power setting. Factors include carburetor icing condition, the pilot's failure to acquire the temperature/dew point information, and soft terrain in the field where the aircraft touched down.
Accident investigation:
 |
|
Sources:
NTSB SEA07LA088
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 01-Oct-2022 17:43 | ASN Update Bot | Added |
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