# NTSB MKC90LA074: Cessna 150, N6406G, Hyannis, NE, March 26, 1990

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: March 26, 1990, 09:00 local (16:00 UTC)
- Place: Hyannis, NE
- Coordinates: 42.000732, -101.760971 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=42.0007&lon=-101.7610&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report September 30, 1991
- Report: Approved by Office Director
- NTSB case key (mKey): 34950
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC90LA074
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/34950/pdf
- Page: https://openairdocs.org/ntsb/MKC90LA074

## Probable cause

FAILURE OF THE PILOT TO MAINTAIN DIRECTIONAL CONTROL, WHICH RESULTED IN AN INADVERTENT GROUND SWERVE AND A SUBSEQUENT NOSE OVER.  FACTORS RELATED TO THE ACCIDENT WERE: THE PILOT'S LACK OF EXPERIENCE IN THIS AIRCRAFT, AND THE SOFT TERRAIN.

## Sequence of events

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

- Loss of control - on ground/water, landing - roll
  - directional control - not maintained, pilot in command (cause)
  - ground loop/swerve - inadvertent, pilot in command (cause)
  - lack of total experience in type of aircraft, pilot in command (contributing factor)
- On ground/water encounter with terrain/water, landing - roll
  - terrain condition - soft (contributing factor)
- Nose over, landing - roll

## Analysis

THE PILOT HAD RECENTLY PURCHASED THE CESSNA 150, WHICH HAD BEEN CONVERTED TO A TAIL WHEEL CONFIGURATION AND A 160 HP POWERPLANT. AFTER A X-COUNTRY FLT, HE LOST DIRECTIONAL CONTROL, WHILE LANDING. SUBSEQUENTLY THE ACFT VEERED OFF THE RUNWAY, ENCOUNTERED SOFT TERRAIN & FLIPPED INVERTED. THE PVT PILOT HAD A TOTAL TIME OF ABOUT 9 HOURS IN THIS TYPE OF ACFT, WHICH INCLUDED ABOUT 4 HOURS OF CROSS COUNTRY TIME.

## Aircraft

- Registration: [N6406G](https://openairdocs.org/deregistered/N6406G-2012-10-10), registration cancelled 2012-10-10, S/N 15071906, built 1970 (OpenAirDocs)
- Reported make and model: CESSNA 150
- Registry model: [Cessna 150K](https://openairdocs.org/model/cessna-150k) (registry code 2071822) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 15071906
- Engines: LYCOMING O-320-B3B 160 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: White, Thomas L
- Registered owner: Unknown
- Departed: BBW, BROKEN BOW, NE
- Destination: 1V2
- Airport: 1V2, Grant Co, runway 17, 2,865 × 30 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 44; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; flight hours: 84 total, 9 in this make and model

## Weather

- Conditions: Visual (VMC), Day
- Wind: 180° at 8 knots
- Visibility: 15 statute miles
- Lowest ceiling: none
- Temperature: -0 °F, dew point -0 °F
- Observed at: MHN, 40 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 19900326005819A](https://openairdocs.org/incident/19900326005819A), Mar 26, 1990: Cessna STC150, Hyannis, NE, Substantial damage. Lost control landing newly purchased modified 150 tail dragger. Left runway, ground looped and 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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