# NTSB DEN84FA199: Mooney M20J, N3713H, Broomfield, CO, June 28, 1984

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Field investigation · Final report
- Date: June 28, 1984, 08:21 local (14:21 UTC)
- Place: Broomfield, CO
- Coordinates: 39.940132, -105.06089 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=39.9401&lon=-105.0609&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 2 fatal
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 16224
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN84FA199
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/16224/pdf
- Page: https://openairdocs.org/ntsb/DEN84FA199

## Sequence of events

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

- Loss of engine power(total) - nonmechanical, takeoff - initial climb
  - aircraft preflight - improper, pilot in command (cause)
  - fluid,fuel - contamination (cause)
- Loss of control - in flight, maneuvering
  - in-flight planning/decision - improper, pilot in command (contributing factor)
  - emergency procedure - not followed, pilot in command (contributing factor)
  - airspeed - not maintained, pilot in command (cause)
  - stall - inadvertent, pilot in command
- In flight collision with terrain/water, descent - uncontrolled
  - terrain condition - open field

## Analysis

THE AIRCRAFT HAD BEEN IDLE FOR 40 DAYS AND WAS REFUELED TO CAPACITY WITH 30 GALS THE NIGHT BEFORE THE FLIGHT. PLT AND PASS WERE DEPARTED AT 0819 FOR A SCHEDULED 0830 MEETING 150 MILES AWAY. ON INITIAL CLIMB, PLT REPORTED A POWER LOSS. ACFT OBSERVED TO DECELERATE IN A SHALLOW GLIDE, EXECUTE BRIEF TURNS IN BOTH DIRECTIONS, BEFORE THE STALL AND SPIN TO VERTICAL IMPACT. WATER AND SILIANCEOUS (SAND) PARTICLES WERE FOUND IN FUEL INJECTOR LINES, SERVO AND SCREEN.

## Aircraft

- Registration: N3713H (not matched to a registry record)
- Reported make and model: MOONEY M20J
- Category: Airplane
- Serial number: 24-0910
- Airframe hours: 841
- Engines: LYCOMING IO-360-A3B6D 200 horsepower reciprocating
- Damage: Destroyed
- Flight: Business, Part 91
- Registered owner: Royal C. & Virginia T. Goshorn
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, May 14, 1984, 82 hours before
- Departed: BROOMFIELD, CO
- Destination: STK, STERLING, CO
- Flight plan: VFR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 46; private; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: left; toxicology performed; flight hours: 367 total, 364 in this make and model, 212 as pilot in command, 4 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 0° at 5 knots
- Visibility: 50 statute miles
- Lowest ceiling: none
- Temperature: 73 °F, dew point 45 °F
- Altimeter: 30.00 inHg
- Observed at: BJC, 2 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 19840628027559A](https://openairdocs.org/incident/19840628027559A), Jun 28, 1984: Mooney M20J, Broomfield, CO, Destroyed, 1 fatal. Engine lost power on climbout. Aircraft stalled and spun in after right turn. Water and sand found in fuel system.

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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