# NTSB DEN85LA022: Cessna R172K, N758CG, Longmont, CO, October 28, 1984

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: October 28, 1984, 14:00 local (21:00 UTC)
- Place: Longmont, CO
- Coordinates: 40.169776, -105.110214 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=40.1698&lon=-105.1102&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 2 minor, 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 16597
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN85LA022
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/16597/pdf
- Page: https://openairdocs.org/ntsb/DEN85LA022

## Sequence of events

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

- Loss of control - in flight, go-around (vfr)
  - weather condition - unfavorable wind (cause)
  - compensation for wind conditions - improper, pilot in command (cause)
  - directional control - not maintained, pilot in command (cause)
- In flight collision with terrain/water, go-around (vfr)
  - terrain condition - ground

## Analysis

THE PILOT STATED THAT HE ENCOUNTERED A STRONG GUST OF WIND FROM THE RIGHT AND LOST DIRECTIONAL CONTROL. THE ACFT STRUCK THE GROUND WITH THE LEFT WING TIP AND NOSE AND FLIPPED OVER.

## Aircraft

- Registration: [N758CG](https://openairdocs.org/deregistered/N758CG-2013-05-08), registration cancelled 2013-05-08, S/N R1722984, built 1978 (OpenAirDocs)
- Reported make and model: CESSNA R172K
- Registry model: [Cessna R172K](https://openairdocs.org/model/cessna-r172k) (registry code 2072431) (OpenAirDocs)
- Registry engine: [Continental IO-360 series](https://openairdocs.org/engine/continental-io-360-series) (registry code 17025, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: R1722984
- Airframe hours: 2792
- Engines: CONTINENTAL IO-360-KB1B 195 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Judson Flying Service
- Registered owner: Charles B. Honeywell
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, May 10, 1984, 57 hours before
- Departed: 48V, ERIE, CO
- Airport: 2V2, Longmont, runway 11, 4,200 × 60 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 34; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 172 total, 11 in this make and model, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 120° at 8 knots
- Visibility: 60 statute miles
- Lowest ceiling: none
- Temperature: 50 °F, dew point 25 °F
- Altimeter: 29.00 inHg
- Observed at: BJC, 10 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 19841028058869A](https://openairdocs.org/incident/19841028058869A), Oct 28, 1984: Cessna R172K, Longmont, CO, Substantial damage. Pilot said aircraft encountered turbulence nearing touchdown causing loss of control. Dust devils seen in vicinity.

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.