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ASN Wikibase Occurrence # 138875
Last updated: 6 December 2019
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Date:23-SEP-2011
Time:10:05
Type:Silhouette image of generic C177 model; specific model in this crash may look slightly different
Cessna 177 Cardinal
Owner/operator:Private
Registration: N3152T
C/n / msn: 17700452
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)
Destination airport:Alva, OK (AVK)
Investigating agency: NTSB
Narrative:
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.

Sources:

NTSB: https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20110923X40934&key=1
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)


Revision history:

Date/timeContributorUpdates
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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