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ASN Wikibase Occurrence # 34611
Last updated: 10 January 2021
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Date:26-MAR-1997
Time:10:10
Type:Silhouette image of generic C172 model; specific model in this crash may look slightly different
Cessna 172P
Owner/operator:Brentco Aerial Patrol
Registration: N97527
C/n / msn: 17276203
Fatalities:Fatalities: 1 / Occupants: 1
Other fatalities:0
Aircraft damage: Written off (damaged beyond repair)
Category:Accident
Location:Burlington, WY -   United States of America
Phase: En route
Nature:SU
Departure airport:Worland, WY (WRL)
Destination airport:, WY (WRL)
Investigating agency: NTSB
Narrative:
Before flight, both wing fuel tanks were 'topped off' with 50 gallons of usable fuel. At about 0950 MST, the pilot departed Worland, Wyoming, en route to Cody, Wyoming, to commence the second half of an aerial pipeline patrol route. After an estimated 20 minutes of flight, the aircraft crashed in an area of uneven, sage covered, terrain. The flaps were found extended 8 degrees, the ignition had been switched to 'LEFT,' and there was evidence that the pilot had slowed the aircraft before it impacted uneven terrain. No evidence was found to indicate that the engine was developing power when impact occurred; aft bending of the propeller was noted with minimal abrasion and chordwise scratching. Extensive hydraulic effect was noted on both main fuel tanks, as well as on one of the brass floats within the carburetor float chamber. An engine teardown revealed no preimpact mechanical malfunction, and no anomaly was found with the aircraft's fuel, air, or ignition systems. Postcrash testing of the aircraft's auxiliary fuel system revealed no mechanical malfunction. Temperature and due point at Worland were 54 and 32 degrees; according to icing probability charts, these conditions were conducive for carburetor ice; however, carburetor icing was not verified. CAUSE: loss of engine power for undetermined reason(s). The lack of suitable terrain for a forced landing was a related factor.

Sources:

NTSB: https://www.ntsb.gov/ntsb/brief.asp?ev_id=20001208X07626


Revision history:

Date/timeContributorUpdates
24-Oct-2008 10:30 ASN archive Added

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