# NTSB DEN90LA156: Cessna 188, N4940R, Michigan, ND, July 11, 1990

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: July 11, 1990, 11:30 local (16:30 UTC)
- Place: Michigan, ND
- Coordinates: 48.021184, -98.112202 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=48.0212&lon=-98.1122&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report November 9, 1992
- Report: Approved by Office Director
- NTSB case key (mKey): 17968
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN90LA156
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/17968/pdf
- Page: https://openairdocs.org/ntsb/DEN90LA156

## Probable cause

THE FAILURE OF THE PILOT TO MAINTAIN PROPER ALIGNMENT DURING LANDING.

## Sequence of events

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

- In flight collision with terrain/water, landing - flare/touchdown
  - terrain condition - crop
  - proper alignment - not maintained, pilot in command (cause)

## Analysis

THE COMMERCIAL PILOT WAS LANDING AT HIS RANCH STRIP. AT TOUCHDOWN, THE LEFT SPRAY BOOM CAUGHT IN A STANDING WHEAT CROP AND SPUN THE PLANE TO THE LEFT, 180 DEGREES. THE PLANE SLAMMED ONTO THE LANDING STRIP AND THE FUSELAGE WAS TORN IN HALF, TWO FEET BEHIND THE COCKPIT. THE RIGHT WING SPAR WAS BENT.

## Aircraft

- Registration: [N4940R](https://openairdocs.org/deregistered/N4940R-2012-12-18), registration cancelled 2012-12-18, S/N 18802457T, built 1975 (OpenAirDocs)
- Reported make and model: CESSNA 188
- Registry model: [Cessna A188B](https://openairdocs.org/model/cessna-a188b) (registry code 2073005) (OpenAirDocs)
- Registry engine: [Continental IO-520 series](https://openairdocs.org/engine/continental-io-520-series) (registry code 17032, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 18802457T
- Engines: CONTINENTAL IO-520-D 285 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Operator: Oewick. Don
- Registered owner: Unknown
- Airport: NONE, runway 9, 1,500 × 12 ft, dirt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 25; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--w/ waivers/lim; flight hours: 2,335 total, 1,121 in this make and model, 2,275 as pilot in command, 89 in the last 90 days, 89 in the last 30 days, 6 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 30° at 4 knots
- Visibility: 15 statute miles
- Lowest ceiling: 9,000 ft broken
- Temperature: -0 °F, dew point -0 °F

## 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 19900711025309A](https://openairdocs.org/incident/19900711025309A), Jul 11, 1990: Cessna A188B, Michigan, ND, Substantial damage. Caught spray boom in wheat on edge off runway and ground looped while landing on ag strip.

## Other investigations on N4940R (1)

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.

- [NTSB MIA95LA204](https://openairdocs.org/ntsb/MIA95LA204), Aug 13, 1995: Cessna A188B (N4940R), Muscle Shoals, AL, destroyed, 1 fatal. Probable cause: FAILURE OF THE PILOT TO MAINTAIN ADEQUATE VISUAL LOOKOUT TO SEE-AND-AVOID ELECTRICAL POWER LINES, WHILE APPROACHING A FIELD FOR AERIAL APPLICATION.

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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