# NTSB MKC86LA110: Myers EAA BI-PLANE, N1770B, Winfield, KS, May 18, 1986

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: May 18, 1986, 18:00 local (23:00 UTC)
- Place: Winfield, KS
- Coordinates: 37.260929, -96.960342 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=37.2609&lon=-96.9603&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 34178
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC86LA110
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/34178/pdf
- Page: https://openairdocs.org/ntsb/MKC86LA110

## 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
  - weather condition - crosswind (contributing factor)
  - directional control - not maintained, pilot in command (cause)
- Nose over, landing - roll

## Analysis

THE PILOT STATED HE WAS LANDING HIS TAILDRAGGER TO THE NORTH WITH WINDS FROM THE NORTH AT 12 TO 15 KNOTS. HE SAID HE WAS MAKING A THREE POINT LANDING AND JUST BEFORE TOUCHDOWN, THE AIRPLANE CHANGED DIRECTIONS AND AFTER TOUCHDOWN, IT WENT OFF THE SIDE OF THE RUNWAY INTO THE GRASS AND SOFT MUD. IT THEN FLIPPED FORWARD TO THE INVERTED POSITION. WINDS AT WICHITA, KS, 34 NM TO THE NORTHWEST WERE FROM 050 DEGREES AT 12 KNOTS.

## Aircraft

- Registration: [N1770B](https://openairdocs.org/aircraft/N1770B), registered now, S/N 150-739, built 1977 (OpenAirDocs)
- Reported make and model: MYERS EAA BI-PLANE (EAA BI-PLA)
- Registry model: [Myers EAA BI-PLANE](https://openairdocs.org/model/myers-eaa-bi-plane) (registry code 3360312) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane, amateur-built
- Serial number: 150-739
- Airframe hours: 130
- Engines: LYCOMING O-320 150 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Olin R. Branstetter
- Airworthiness certificate: Special, Experimental (Special)
- Last inspection: 100 hour, October 15, 1986, 30 hours before
- Departed: PNC, PONCA CITY, OK
- Airport: WLD, Strother Field, runway 35, 5,500 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 56; commercial, flight instructor; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; flight hours: 919 total, 40 in this make and model, 804 as pilot in command, 26 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 50° at 12 knots
- Visibility: 20 statute miles
- Lowest ceiling: none
- Temperature: 66 °F, dew point 45 °F
- Altimeter: 30.00 inHg
- Observed at: ICT, 34 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 19860518017879A](https://openairdocs.org/incident/19860518017879A), May 18, 1986: Amtrea EAABIPLANE/, Winfield, KS, Substantial damage. Tried 3 point landing. Just before touchdown, aircraft turned to one side. Veered off runway side and nosed 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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