ASN Wikibase Occurrence # 166555
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| Date: | Saturday 24 May 2014 |
| Time: | 15:00 |
| Type: |  Cessna 182P Skylane |
| Owner/operator: | Private |
| Registration: | N21048 |
| MSN: | 18261381 |
| Year of manufacture: | 1972 |
| Total airframe hrs: | 4938 hours |
| Engine model: | Continental O-550D |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | South of Mammoth Lakes, CA -
 United States of America
|
| Phase: | Landing |
| Nature: | Private |
| Departure airport: | Bishop, CA (KBIH) |
| Los Banos, CA (KLSN) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The commercial pilot reported that the airplane was in cruise flight at 12,500 ft mean sea level (msl) when he noticed a partial loss of engine power and that the No. 1 cylinder exhaust gas temperature had dropped from 1,450 to 1,300 degrees F. The pilot diverted to an airport about 10 miles away; however, the engine then experienced a total loss of power about 4,000 ft above ground level. The airplane was unable to reach the airport, so the pilot performed a forced landing on a dirt road, during which the firewall was substantially damaged and the right main landing gear collapsed.
A postaccident engine test run at various power settings revealed no mechanical failures or malfunctions that would have precluded normal operation. Weather conditions at the time of the accident at the airplane’s cruise altitude of 12,500 ft msl were conducive to the formation of carburetor icing at glide and cruise power. During the on-site examination of the wreckage, the carburetor heat control was found in the “off” position. It is likely that the engine lost power due to carburetor ice and that the timely application of carburetor heat would have restored engine power.
Probable Cause: The total loss of engine power due to carburetor icing, which resulted from the pilot’s failure to use carburetor heat in cruise flight while operating in an area conducive to carburetor icing.
Accident investigation:
 |
|
Sources:
NTSB
FAA register: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=21048
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 28-May-2014 00:30 | Geno | Added |
| 28-May-2014 05:15 | Geno | Updated [Time, Location, Departure airport, Destination airport, Source, Narrative] |
| 21-Dec-2016 19:28 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 29-Nov-2017 14:22 | ASN Update Bot | Updated [Other fatalities, Departure airport, Destination airport, Source, Narrative] |
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