# NTSB DEN82DA151: Cessna 150F, N8232S, Sheridan Lake, CO, July 19, 1982

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: July 19, 1982, 17:00 local (23:00 UTC)
- Place: Sheridan Lake, CO
- Coordinates: 38.460468, -102.290641 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=38.4605&lon=-102.2906&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report July 19, 1983
- Report: Approved by Office Director
- NTSB case key (mKey): 72613
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN82DA151
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/72613/pdf
- Page: https://openairdocs.org/ntsb/DEN82DA151

## Analysis

THE PILOT REPORTED THAT HE WAS ON A FLIGHT TO CHECK HIS FIELDS AND CROPS FOR POSSIBLE HAIL DAMAGE. REPORTEDLY, HE DECIDED TO SEE HOW A FRIEND WAS DOING WITH HIS WHEAT HARVEST AND TO SEE IF HE HAD RECEIVED HAIL DAMAGE. THE PILOT STATED THAT HE SPOTTED HIS FRIEND'S COMBINE AND ATTEMPTED TO MAKE A LOW PASS CLOSE TO THE MACHINE. HE STATED THAT HE MISJUDGED HIS DISTANCE AND THE PLANE MADE CONTACT WITH THE GROUND, THEN SKIDDED ABOUT 300 FT TO A STOP. ACCORDING TO WITNESSES, THE PILOT BUZZED BY TWO COMBINES AND A GRAIN TRUCK. ONE WITNESS REPORTED THAT HE THOUGHT THE PILOT WAS THEN GOING TO TURN AROUND AND BUZZ HIM (THE WITNESS) AGAIN; HOWEVER, WHILE IN A LEFT BANK, THE PLANE'S LEFT WING HIT THE GROUND.

## Sequence of events

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

- In flight collision with terrain/water, maneuvering
  - buzzing - performed, pilot in command (contributing factor)
  - proper altitude - not maintained, pilot in command (cause)
  - diverted attention, pilot in command (cause)

## Aircraft

- Registration: [N8232S](https://openairdocs.org/deregistered/N8232S-1983-02-08), registration cancelled 1983-02-08, S/N 15061832 (OpenAirDocs)
- Reported make and model: CESSNA 150F
- Registry model: [Cessna 150F](https://openairdocs.org/model/cessna-150f) (registry code 2071814) (OpenAirDocs)
- Category: Airplane
- Serial number: 15061832
- Airframe hours: 4200
- Engines: CONTINENTAL O-200-A 100 horsepower reciprocating
- Damage: Substantial damage
- Flight: Part 91
- Operator: Darwin Hoffman/Charles Koehn
- Registered owner: Darwin Hoffman/Charles Koehn
- Departed: 5K2, TRIBUNE, KS
- Destination: 5K2, TRIBUNE, KS

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 40; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; flight hours: 156 total, 136 in this make and model, 136 as pilot in command, 15 in the last 90 days, 8 in the last 30 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 130° at 8 knots
- Visibility: 25 statute miles
- Lowest ceiling: 6,000 ft broken
- Temperature: 199 °F
- Altimeter: 29.00 inHg
- Observed at: LHX, 70 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 19820719038699A](https://openairdocs.org/incident/19820719038699A), Jul 19, 1982: Cessna 150F, Sheridan Lake, CO, Substantial damage. Pilot making low passes over friend on combine. Let wing hit ground causing crash.

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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