# NTSB SEA91LA187: Beech A-36, N4394A, Kemmerer, WY, July 23, 1991

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: July 23, 1991, 14:25 local (20:25 UTC)
- Place: Kemmerer, WY
- Coordinates: 41.780815, -110.550804 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=41.7808&lon=-110.5508&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 2 minor
- Status: Completed, report February 8, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 41493
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA91LA187
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/41493/pdf
- Page: https://openairdocs.org/ntsb/SEA91LA187

## Probable cause

THE PILOT'S POOR PLANNING/DECISION.  FACTORS INCLUDE SELECTING THE WRONG RUNWAY UNDER THE HIGH DENSITY ALTITUDE CONDITIONS.

## Sequence of events

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

- On ground/water encounter with terrain/water, takeoff - aborted
  - planning/decision - poor, pilot in command (cause)
  - wrong runway - selected, pilot in command (contributing factor)
  - weather condition - high density altitude (contributing factor)
- Overrun, takeoff - aborted

## Analysis

THE PILOT OF THE BEECHCRAFT A-36 ATTEMPTED TO DEPART FROM A 2,850 FOOT RUNWAY, WITH A DENSITY ALTITUDE OF APPROXIMATELY 10,000 FEET.  WHEN THE AIRCRAFT HAD USED UP ABOUT 60% OF THE RUNWAY, THE PILOT DECIDED TO ABORT. HE WAS UNABLE TO STOP THE AIRCRAFT IN THE REMAINING RUNWAY, AND THE AIRCRAFT WENT OVER A 20 FOOT DROP-OFF, 30 FEET PAST THE END OF THE RUNWAY. TWO OTHER RUNWAYS WERE AVAILABLE TO THE PILOT.  ONE WAS 3,250 FEET, AND THE OTHER WAS 7,020 FEET LONG.

## Aircraft

- Registration: N4394A (not matched to a registry record)
- Reported make and model: Beech A-36
- Category: Airplane
- Serial number: E-211
- Engines: CONTINENTAL IO-520-BA 285 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: George A. Mcrae
- Registered owner: George A. Mcrae
- Destination: SLC, SALT LAKE CITY, UT
- Airport: EMM, Kemmerer, runway 22, 2,850 × 60 ft, concrete

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 40; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; flight hours: 333 total, 281 in this make and model, 333 as pilot in command, 27 in the last 90 days, 14 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 220° at 8 knots
- Visibility: 50 statute miles
- Lowest ceiling: 12,000 ft broken
- Temperature: 81 °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 19910723029589A](https://openairdocs.org/incident/19910723029589A), Jul 23, 1991: Beech A36, Kemmerer, WY, Substantial damage. Chose short runway to depart into wind. High density altitude degraded lift. Aborted. Ran off end over embankment.

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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