# NTSB DEN86LA024: Champion 7KCAB, N1832G, Berthoud, CO, November 17, 1985

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: November 17, 1985, 14:15 local (21:15 UTC)
- Place: Berthoud, CO
- Coordinates: 40.300621, -105.079864 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=40.3006&lon=-105.0799&mi=10
- Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 16884
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN86LA024
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/16884/pdf
- Page: https://openairdocs.org/ntsb/DEN86LA024

## Analysis

THE PLT STATED THAT HE MADE 7-9 HIGH SPEED TAXIES TO PACK THE SNOW ON THE GRASS STRIP, ABORTING MID-STRIP WHEN FLYING SPEED WAS NOT ATTAINED. ON THE FINAL RUN, THE PLT SAID THE ACFT AGAIN FAILED TO REACH FLYING SPEED AND DECIDED TO ABORT MID-STRIP. THE PLT STATED HE CLOSED THE THROTTLE AND PULLED BACK ON THE STICK, HOWEVER, THE ACFT DECELERATED QUICKER THAN USUAL AND ROLLED OVER ITS NOSE ONTO ITS BACK.

## Sequence of events

In NTSB's coding before 2008 (https://www.ntsb.gov/GILS/Documents/codman.pdf).

- Nose over, taxi
  - airport facilities,runway/landing area condition - snow covered (contributing factor)
  - judgment - poor, pilot in command (cause)
  - overconfidence in aircraft's ability, pilot in command (cause)
  - overconfidence in personal ability, pilot in command (cause)

## Aircraft

- Registration: [N1832G](https://openairdocs.org/aircraft/N1832G), registered now, S/N 86 (OpenAirDocs)
- Reported make and model: CHAMPION 7KCAB
- Registry model: [Champion 7KCAB](https://openairdocs.org/model/champion-7kcab) (registry code 21101P3) (OpenAirDocs)
- Registry engine: [Lycoming IO-320 series](https://openairdocs.org/engine/lycoming-io-320-series) (registry code 41509, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 86
- Airframe hours: 1192
- Engines: LYCOMING IO-320-E2A 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Barton M Brooks
- Airworthiness certificate: Standard, Normal; Standard, Aerobatic
- Last inspection: Annual, April 6, 1985

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 41; private; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: front; flight hours: 715 total, 132 in this make and model, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 338° at 8 knots
- Visibility: 8 statute miles
- Lowest ceiling: none
- Temperature: 32 °F, dew point 25 °F
- Altimeter: 29.00 inHg
- Observed at: BJC, 24 nm away

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19851117061809A](https://openairdocs.org/incident/19851117061809A), Nov 17, 1985: Bbavia 7KCAB, Berthoud, CO, Substantial damage. Aborted takeoff when airspeed was not attained. Nose wheel dug into snow cover and aircraft flipped over.

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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