# NTSB LAX92LA179: Homebuilt Dragonfly, N235JS, Parker, AZ, April 19, 1992

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: April 19, 1992, 10:15 local (17:15 UTC)
- Place: Parker, AZ
- Coordinates: 34.079936, -114.22055 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=34.0799&lon=-114.2206&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report August 26, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 27601
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX92LA179
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/27601/pdf
- Page: https://openairdocs.org/ntsb/LAX92LA179

## Probable cause

AN OIL LEAK FROM AN UNIDENTIFIED SOURCE.  THE HIGH VEGETATION ALONG THE FORCED LANDING AREA CONTRIBUTED TO THIS ACCIDENT.

## Sequence of events

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

- Airframe/component/system failure/malfunction, cruise - normal
  - lubricating system - leak (cause)
- Forced landing, descent - emergency
- In flight collision with object, landing - flare/touchdown
  - terrain condition - high vegetation (contributing factor)

## Analysis

WHILE IN CRUISE FLIGHT, OVER DESERT TERRAIN, THE PILOT OBSERVED OIL FLOWING OVER HIS WINDSHIELD FROM A RUPTURE OF THE LUBRICATING SYSTEM.  THE APPEARANCE OF OIL WAS FOLLOWED BY A REDUCTION IN ENGINE OIL PRESSURE.  THE PILOT ELECTED TO EXECUTE THE EMERGENCY LANDING ON A NARROW DIRT ROAD THAT TRANSITS A STATE PARK. THE AIRPLANE'S RIGHT CANARD STRUCK HIGH VEGETATION DURING THE LANDING FLARE AND THE AIRPLANE SPUN OFF THE ROAD. THE PILOT EXITED THE WRECKAGE PRIOR TO THE ERUPTION OF A POST-CRASH FIRE.

## Aircraft

- Registration: [N235JS](https://openairdocs.org/deregistered/N235JS-1992-08-26), registration cancelled 1992-08-26, S/N 829 (OpenAirDocs)
- Reported make and model: HOMEBUILT DRAGONFLY
- Registry model: [Scott Jerry DRAGONFLY](https://openairdocs.org/model/scott-jerry-dragonfly) (registry code 05676Y9) (OpenAirDocs)
- Category: Airplane, amateur-built
- Serial number: 829
- Airframe hours: 425
- Engines: REVMASTER 2100-DCDI 75 horsepower reciprocating
- Damage: Destroyed
- Fire: On-Ground
- Flight: Personal, Part 91
- Operator: Moon, Maurice D.
- Registered owner: Moon, Maurice D.
- Airworthiness certificate: Special, Experimental (Special)
- Last inspection: Annual, October 1, 1991, 52 hours before
- Departed: PRC, PRESCOTT, AZ
- Destination: CNO, CHINO, CA
- Flight plan: VFR

## 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.; seat: left; flight hours: 189 total, 95 in this make and model, 140 as pilot in command, 30 in the last 90 days, 18 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Visibility: 50 statute miles
- Lowest ceiling: none

## 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 19920419010329A](https://openairdocs.org/incident/19920419010329A), Apr 19, 1992: Amtr DRAGONFLY, Parker, AZ, Destroyed. Lost oil pressure and oil on windshield. Crashed attempting landing on road. Fuel on hot exhaust caused fire.

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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