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ASN Wikibase Occurrence # 176522
Last updated: 5 December 2019
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Date:24-APR-2004
Time:11:40
Type:Silhouette image of generic C172 model; specific model in this crash may look slightly different
Cessna 172N
Owner/operator:Private
Registration: N5048E
C/n / msn: 17271699
Fatalities:Fatalities: 0 / Occupants: 2
Other fatalities:0
Aircraft damage: Substantial
Category:Accident
Location:Lyons, CO -   United States of America
Phase: Landing
Nature:Training
Departure airport:Longmont, CO (2V2)
Destination airport:
Investigating agency: NTSB
Narrative:
According to the flight instructor, they were practicing engine failure procedures (with the use of carburetor heat) when the engine lost power. During the landing roll, the airplane struck a street sign, substantially damaging the airplane. The engine was run by an Airframe and Powerplant mechanic on April 24, 2004. The engine started without hesitation and a carburetor heat check and magneto check were performed with no anomalies. The fuel tanks were reported to be "half full." The temperature was 45 degrees Fahrenheit (F), and the dewpoint was 33 degrees F. According to the Carburetor Icing Chart, the conditions were conducive for "serious icing at cruise power."
Probable Cause: a loss of engine power due to carburetor icing. Contributing factors were weather conditions conducive to carburetor icing and unsuitable terrain available on which to make a forced landing and the road sign.

Sources:

NTSB: https://www.ntsb.gov/_layouts/ntsb.aviation/brief.aspx?ev_id=20040524X00635&key=1


Revision history:

Date/timeContributorUpdates
30-May-2015 19:43 Noro Added
21-Dec-2016 19:30 ASN Update Bot Updated [Time, Damage, Category, Investigating agency]
07-Dec-2017 17:53 ASN Update Bot Updated [Other fatalities, Nature, Departure airport, Source, Narrative]

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