ASN Wikibase Occurrence # 220879
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| Date: | Wednesday 16 January 2019 |
| Time: | 16:00 |
| Type: |  Champion 7GCBC |
| Owner/operator: | Private |
| Registration: | N822TT |
| MSN: | 351-72 |
| Year of manufacture: | 1972 |
| Total airframe hrs: | 2010 hours |
| Engine model: | Lycoming O-320 |
| Fatalities: | Fatalities: 0 / Occupants: 1 |
| Aircraft damage: | Substantial |
| Category: | Accident |
| Location: | Missouri River sandbar, Broadwater County near Townsend, MT -
 United States of America
|
| Phase: | Landing |
| Nature: | Private |
| Departure airport: | Helena Airport, MT (HLN/KHLN) |
| Helena Airport, MT (HLN/KHLN) | |
| Investigating agency: | NTSB |
| Confidence Rating: |  Accident investigation report completed and information captured |
The private pilot reported that, during the local pleasure flight, the engine started to run roughly and that he thought that it was due to carburetor ice. The pilot applied carburetor heat, and after about 3 minutes, the engine still did not seem like it was running smoothly. The pilot initiated a climb; however, the airplane would not gain altitude, so he chose to make a precautionary landing on a sandbar in a river. After touchdown on the rough and bumpy surface, the pilot applied braking action. The wheels dug into the soft sand, and subsequently the airplane nosed over and came to rest inverted.
The wings and the left lift strut were substantially damaged.
The pilot reported that there were no preaccident mechanical failures or malfunctions with the engine or airplane that would have precluded normal operation.
The nearest weather reporting facility, located about 27 nautical miles northwest of the accident site, reported that, about the time of the accident, the temperature was 30°F and the dew point was 16°F, which was near the range of atmospheric conditions being conducive to icing at glide and cruise power settings.
.
Probable Cause: The pilot's failure to maintain airplane control during a precautionary landing on an uneven, soft surface.
Accident investigation:
 |
|
Sources:
NTSB
Location
Media:
Revision history:
| Date/time | Contributor | Updates |
|---|---|---|
| 17-Jan-2019 03:13 | Geno | Added |
| 17-Jan-2019 12:02 | Iceman 29 | Updated [Aircraft type, Embed code] |
| 17-Jan-2019 20:43 | Geno | Updated [Aircraft type, Source] |
| 02-Oct-2019 07:56 | ASN Update Bot | Updated [Time, Cn, Country, Nature, Departure airport, Destination airport, Source, Narrative, Accident report, ] |
Corrections or additions? ... Edit this accident description
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