# NTSB DEN87LA113: Beech A24R, N9784L, Beulah, WY, April 28, 1987

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: April 28, 1987, 15:00 local (21:00 UTC)
- Place: Beulah, WY
- Coordinates: 44.530517, -104.079391 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=44.5305&lon=-104.0794&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report November 8, 1988
- Report: Approved by Office Director
- NTSB case key (mKey): 17214
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN87LA113
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/17214/pdf
- Page: https://openairdocs.org/ntsb/DEN87LA113

## Sequence of events

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

- Loss of engine power, climb - to cruise
  - reason for occurrence undetermined (cause)
- Forced landing, descent - emergency
  - precautionary landing - performed, pilot in command
- In flight collision with terrain/water, landing - flare/touchdown
  - proper touchdown point - not attained, pilot in command (cause)

## Analysis

THE ACFT LOST POWER DURING A NORMAL CLIMB ON A PERSONAL TRIP. THE PRIVATE PLT NOTICED A DROP IN FUEL FLOW PRESSURE AND SMELLED FUEL. THE PLT THEN SELECTED BOOST PUMP ON BUT THE PRESSURE STAYED LOW. THE PLT ELECTED TO MAKE A FORCED LANDING AND SELECTED A FIELD. THE ACFT OVERFLEW THE FIELD AND IMPACTED IN A TREE FILLED SWAMP. POST ACCIDENT EXAM OF WRECKAGE DID NOT REVEAL ANY EVIDENCE TO EXPLAIN THE LOSS OF POWER OR THE FUEL ODOR.

## Aircraft

- Registration: [N9784L](https://openairdocs.org/deregistered/N9784L-2015-05-21), registration cancelled 2015-05-21, S/N MC-114, built 1972 (OpenAirDocs)
- Reported make and model: BEECH A24R
- Registry model: [Beech A24R](https://openairdocs.org/model/beech-a24r) (registry code 1151252) (OpenAirDocs)
- Registry engine: [Lycoming IO-320 series](https://openairdocs.org/engine/lycoming-io-320-series) (registry code 41509, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: MC114
- Airframe hours: 2300
- Engines: LYCOMING IO-360 A1B 200 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Albert E. Stone
- Registered owner: Albert E. Stone
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, August 2, 1986
- Departed: SPF, SPEARFISH, SD
- Destination: CCC, GILLETTE, WY

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 59; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 456 total, 116 in this make and model, 106 as pilot in command, 29 in the last 90 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 330° at 16 knots
- Visibility: 40 statute miles
- Lowest ceiling: none
- Temperature: 88 °F, dew point 34 °F
- Altimeter: 29.00 inHg
- Observed at: RAP, 150 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 19870428011779A](https://openairdocs.org/incident/19870428011779A), Apr 28, 1987: Beech A24R, Beulah, WY, Substantial damage. Engine lost fuel pressure forcing the aircraft to land in pasture. No malfunction found. High density altitude.

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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