ASN Wikibase Occurrence # 138875
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| Date: | Friday 23 September 2011 |
| Time: | 10:05 |
| Type: |  Cessna 177 Cardinal |
| Owner/operator: | Private |
| Registration: | N3152T |
| MSN: | 17700452 |
| Total airframe hrs: | 2947 hours |
| Engine model: | Lycoming O-320 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Rock Springs, WY -
 United States of America
|
| Phase: | Initial climb |
| Nature: | Private |
| Departure airport: | Rock Springs, WY (RKS) |
| Alva, OK (AVK) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
According to the pilot, he leaned the mixture in order to start the engine, but he did not lean the mixture prior to takeoff and did not remember using the Before Takeoff checklist. Shortly after takeoff and during the initial climb, the engine power was smooth and strong, but, about 500 feet above ground level, the engine started vibrating and the airplane began to lose altitude. Not being able to return to the airport, the pilot made an emergency off-field landing. During the landing roll, the left main landing gear impacted a hole or a berm, which resulted in the collapse of the left main gear. A postaccident engine run revealed no anomalies with the engine that would have precluded normal operation. The airplane’s owner’s manual notes that, for maximum rate-of-climb performance at airports above 5,000 feet, the mixture control should be leaned. The elevation of the airport was 6,764 feet. The density altitude at the time of the accident was calculated to be 7,907 feet.
Probable Cause: The pilot did not lean the fuel mixture prior to takeoff, which resulted in the engine's inability to attain sufficient power due to the rich mixture, and his inadequate preflight planning.
Accident investigation:
 |
|
Sources:
NTSB
FAA register: https://www.ntsb.gov/aviationquery/brief.aspx?ev_id=20110923X40934&key=1
http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=N3152T
http://www.airnav.com/airport/KAVK
https://www.sweet.wy.us/scso/mediarelease2011/MR-sept23.html
http://www.airport-data.com/images/aircraft/large/000/622/622024.jpg (photo)
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 01-Oct-2011 01:15 | Geno | Added |
| 01-Oct-2011 01:19 | RobertMB | Updated [Aircraft type, Operator, Source, Narrative] |
| 06-Oct-2011 11:52 | Anon. | Updated [Source] |
| 21-Dec-2016 19:26 | ASN Update Bot | Updated [Time, Damage, Category, Investigating agency] |
| 27-Nov-2017 17:12 | ASN Update Bot | Updated [Operator, Other fatalities, Departure airport, Destination airport, Source, Narrative] |
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