# NTSB MKC86LA143: Beech C23, N66353, Cheney, KS, July 4, 1986

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: July 4, 1986, 09:00 local (14:00 UTC)
- Place: Cheney, KS
- Coordinates: 37.619678, -97.780532 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=37.6197&lon=-97.7805&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 4 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 34207
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC86LA143
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/34207/pdf
- Page: https://openairdocs.org/ntsb/MKC86LA143

## Sequence of events

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

- Loss of control - in flight, takeoff - initial climb
  - terrain condition - soft (contributing factor)
  - preflight planning/preparation - poor, pilot in command (cause)
  - weather condition - high density altitude (contributing factor)
  - performance data - disregarded, pilot in command (cause)
  - overconfidence in aircraft's ability, pilot in command (contributing factor)
  - aircraft performance,takeoff capability - exceeded (contributing factor)
  - airspeed - not maintained, pilot in command (cause)
  - weather condition - crosswind (contributing factor)
  - directional control - not maintained, pilot in command (cause)
  - stall/mush (cause)
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

THE PILOT STATED THAT THE AIRCRAFT WAS BARELY AIRBORNE AS IT REACHED THE END OF THE AIRSTRIP, ON THE TAKEOFF ROLL. AT THIS POINT HE ENCOUNTERED CROSSWIND CONDITIONS AND THE AIRCRAFT MUSH/STALLED AND IMPACTED THE GROUND. POST-ACCIDENT COMPUTATIONS REVEAL THAT THE AIRCRAFT WAS 55 LBS OVER MAXIMUM ALLOWABLE TAKEOFF GROSS WEIGHT, BUT STILL WITHIN THE C.G. LIMITS. AS SUCH, THE PILOT ATTEMPTED THE TAKEOFF FROM A 2,600 FT LONG GRASS STRIP WITH A DENSITY ALTITUDE OF 3,000 FT AND A CROSSWIND COMPONENT OF 20 KTS.

## Aircraft

- Registration: [N66353](https://openairdocs.org/deregistered/N66353-2003-08-22), registration cancelled 2003-08-22, S/N M-2211, built 1979 (OpenAirDocs)
- Reported make and model: BEECH C23
- Registry model: [Beech C23](https://openairdocs.org/model/beech-c23) (registry code 1151242) (OpenAirDocs)
- Registry engine: [Lycoming O&VO-360 series](https://openairdocs.org/engine/lycoming-o-vo-360-series) (registry code 41514, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: M-2211
- Airframe hours: 400
- Engines: LYCOMING O-360-A4K 180 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Registered owner: Robert C. Brown
- Airworthiness certificate: Standard, Utility; Standard, Aerobatic; Standard, Normal
- Departed: CHENEY, KS
- Airport: runway 27, 2,600 ×  ft, grass/turf

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 56; commercial; airplane ratings: single-engine land, multi-engine land; medical: class 2, valid medical--w/ waivers/lim; seat: left; flight hours: 2,200 total, 400 in this make and model, 1,800 as pilot in command, 4 in the last 90 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 200° at 22 knots
- Visibility: 12 statute miles
- Lowest ceiling: none
- Temperature: 77 °F, dew point 68 °F
- Altimeter: 29.00 inHg
- Observed at: ICT, 20 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 19860704030639A](https://openairdocs.org/incident/19860704030639A), Jul 4, 1986: Beech 23BEECH, Cheney, KS, Substantial damage. The aircraft settled into the ground after liftoff. Aircraft was over maximum gross weight. Density altitude high.

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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