ASN Wikibase Occurrence # 355513
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| Date: | Wednesday 23 July 1997 |
| Time: | 09:00 LT |
| Type: |  Beechcraft 77 |
| Owner/operator: | Private |
| Registration: | N1848F |
| MSN: | 1675 |
| Total airframe hrs: | 2470 hours |
| Engine model: | Lycoming O-235-L2C |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Lakeport, CA -
 United States of America
|
| Phase: | En route |
| Nature: | Training |
| Departure airport: | (1O2) |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The aircraft was owned and operated by the pilot and was on a local instructional flight to complete the pilot's biennial flight review. The pilot and instructor reported that they were performing a series of slow flight maneuvers and stalls. The engine lost power and could not be restarted, and the pilots were forced to land in a vineyard. On-ground collision with grape vines and the supporting wooden posts and wires damaged the aircraft. An FAA inspector reported that rotation of the crankshaft produced compression in each cylinder, with accessory gear and valve train continuity established. The carburetor and fuel system were examined, with no abnormality noted. Both magnetos sparked with hand rotation. About 13 miles west at Ukiah, California, the 0845 weather observation showed that the temperature and dew point were 60 and 51 degrees Fahrenheit. Review of a carburetor icing probability chart revealed that the temperature and dew point were within an area of the graph annotated 'serious icing - cruise or climb power.'
Probable Cause: carburetor ice, and the failure of both pilot's to use (or properly use) carburetor heat. Factors relating to the accident were: the weather (carburetor icing) conditions, and obstructions in the forced landing area (grape vineyard).
Accident investigation:
 |
|
Sources:
NTSB LAX97LA254
History of this aircraft
Other occurrences involving this aircraft
| 24 April 1982 | N37149 | Hangar One | 0 | Jacksonville, FL | |
sub |
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 12-Mar-2024 12:47 | ASN Update Bot | Added |
Corrections or additions? ... Edit this accident description
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