ASN Wikibase Occurrence # 211295
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| Date: | Monday 21 May 2018 |
| Time: | 19:10 |
| Type: |  Taylorcraft BC12-D |
| Owner/operator: | Private |
| Registration: | N94909 |
| MSN: | 9309 |
| Year of manufacture: | 1946 |
| Engine model: | Continental A65 |
| Fatalities: | Fatalities: 1 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Doug Bolton Field Airport (02GA), Commerce, GA -
 United States of America
|
| Phase: | Initial climb |
| Nature: | Private |
| Departure airport: | Commerce, GA (N/A) |
| Commerce, GA (N/A) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The commercial pilot departed on a visual flight rules local flight. A witness saw the pilot conduct a preflight inspection of the accident airplane and depart on a 10-minute flight. When the airplane returned to the airstrip to land, the witness heard the engine rpm "going up and down." After the airplane landed, the pilot began taxiing toward the hangar but then taxied back to the runway for another takeoff. The witness stated that the airplane reached an altitude between about 50 and 75 ft above the runway with the engine sputtering. At that time, the airplane seemed to slow and was just above the trees when the right wing and then the nose dropped, which was followed by an impact with trees.
Postaccident examination of the engine revealed no evidence of any preimpact mechanical malfunctions or failures that would have precluded normal operation. The weather conditions near the accident site at the time of the accident were conducive to the formation of serious carburetor icing at descent engine power settings. Given that these conditions existed, and that the witness reported the engine rpm may have been fluctuating during the airplane's previous landing approach, it is likely that carburetor ice accumulated during the prior descent and possibly the taxi period that followed prior to the accident takeoff. The undetected partial loss of power during the accident takeoff ultimately led to an aerodynamic stall from which the pilot was unable to recover.
Probable Cause: The pilot's failure to effectively mitigate an accumulation of carburetor ice, which resulted in an undetected partial loss of engine power and an aerodynamic stall during takeoff.
Accident investigation:
 |
|
Sources:
NTSB
FAA register: http://registry.faa.gov/aircraftinquiry/NNum_Results.aspx?NNumbertxt=94909
Location
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 22-May-2018 05:14 | Geno | Added |
| 22-May-2018 05:16 | Geno | Updated [Source] |
| 22-May-2018 16:52 | Geno | Updated [Time, Aircraft type, Registration, Cn, Operator, Source, Damage, Narrative] |
| 22-May-2018 17:16 | Geno | Updated [Registration, Total fatalities, Source, Narrative] |
| 22-Apr-2020 17:05 | ASN Update Bot | Updated [Time, Operator, Nature, Departure airport, Destination airport, Source, Narrative, Accident report, ] |
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