ASN Wikibase Occurrence # 205767
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| Date: | Sunday 21 May 2017 |
| Time: | 09:45 |
| Type: |  Cessna 150J |
| Owner/operator: | Private |
| Registration: | N60579 |
| MSN: | 15070419 |
| Year of manufacture: | 1969 |
| Total airframe hrs: | 3972 hours |
| Engine model: | Continental O-200 |
| Fatalities: | Fatalities: 0 / Occupants: 2 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Zepp, VA -
 United States of America
|
| Phase: | En route |
| Nature: | Training |
| Departure airport: | Cumberland, WV (CBE) |
| New Market, VA (8W2) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The flight instructor reported that, during a long cross-country flight, they encountered deteriorating weather conditions, and to remain visual flight rules, he altered course and destination. En route and while approaching a ridge line, he “noticed that [the airplane’s] airspeed started to drop toward 65 miles an hour.” He added that “[he] thought that maybe [the airplane was] picking up carburetor ice and [he] reached for the carburetor heat and pulled it out.”
The student pilot reported that, after the flight instructor stated, “watch your airspeed,” he looked at the rpm gauge and noted that it was indicating 1,800 to 1,900 rpm. He added that the flight instructor took over the flight controls and that the airplane then impacted the top of a ridge.
The airplane sustained substantial damage to the right wing.
Atmospheric conditions reported at the time of the accident around the accident site were conducive to serious icing at cruise power. It is likely that carburetor ice accumulated due to the student pilot’s failure to apply carburetor heat and the flight instructor’s delayed application of carburetor heat, which resulted in a partial loss of engine power.
Probable Cause: A partial loss of engine power due to the formation of carburetor icing, which resulted from the student pilot’s failure to apply carburetor heat and the flight instructor’s delayed response in applying carburetor heat while operating in conditions conducive to carburetor icing.
Accident investigation:
 |
|
Sources:
NTSB
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 07-Feb-2018 13:47 | ASN Update Bot | Added |
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