ASN Wikibase Occurrence # 248214
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| Date: | Wednesday 24 February 2021 |
| Time: | 15:00 LT |
| Type: |  Cessna 172B Skyhawk |
| Owner/operator: | Private |
| Registration: | N7832X |
| MSN: | 17248332 |
| Year of manufacture: | 1960 |
| Total airframe hrs: | 5078 hours |
| Engine model: | Continental O-300D |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Back Creek, Frederick County, VA -
 United States of America
|
| Phase: | Landing |
| Nature: | Private |
| Departure airport: | Winchester Regional Airport, VA (KOKV) |
| Westminster-Carroll County Regional Jack B Poage Field, MD (KDMW) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
After a delay while he waited for several other airplanes to land and take off, the pilot departed and was climbing to cruise altitude when the engine began to lose power. Shortly thereafter, the engine lost power completely. The pilot then attempted to restore engine power and did not activate the carburetor heat until after the power loss. He was able to briefly restart the engine, but it ultimately lost power again after a brief period of rough running. During the subsequent off-airport landing, the nose landing gear separated from the airplane and it nosed over, substantially damaging both wings and the vertical stabilizer. The engine was successfully test run following the accident, and no mechanical deficiencies were found that would have precluded normal operation. The temperature and dewpoint at the departure airport around the time of the accident were conducive to the formation of carburetor icing. It is likely that, during the delay while the pilot was waiting to depart, the carburetor began to accumulate ice, that the ice accumulation continued during the subsequent takeoff and climb, and that the engine slowly lost power throughout. Because the pilot did not activate the carburetor heat until after the engine had lost power completely, the carburetor heat was ineffective at restoring engine power.
Probable Cause: The pilot's delayed use of carburetor heat, which resulted in carburetor icing and a subsequent total loss of engine power.
Accident investigation:
 |
|
Sources:
NTSB ERA21LA137
FAA register: https://registry.faa.gov/aircraftinquiry/Search/NNumberResult?nNumberTxt=7832X
https://flightaware.com/photos/view/29032-239754efb1ce686fb35ed59e6a2f9hel+Rd,+Back+Creek,+VA+22602/@39.165177,-78.3548067,793m/data=!3m2!1e3!4b1!4m5!3m4!1s0x89b593972bfcbafb:0x64bc7a62243d804a!8m2!3d39.165177!4d-78.352618?hl=en-us
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 24-Feb-2021 21:42 | Geno | Added |
| 25-Feb-2021 01:35 | RobertMB | Updated [Location, Nature, Source, Narrative] |
| 06-Jul-2022 14:47 | ASN Update Bot | Updated [Time, Other fatalities, Departure airport, Destination airport, Source, Narrative, Category, Accident report] |
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