# NTSB SEA85LA153: Borreson Dragon FLY, N935AB, Burley, ID, June 28, 1985

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: June 28, 1985, 07:35 local (13:35 UTC)
- Place: Burley, ID
- Coordinates: 42.390346, -113.779457 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=42.3903&lon=-113.7795&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 40189
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA85LA153
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/40189/pdf
- Page: https://openairdocs.org/ntsb/SEA85LA153

## 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
  - reason for occurrence undetermined (cause)
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

THE AIRCRAFT CRASHED DUE TO LOSS OF CONTROL DURING TAKEOFF. THE PLT REPORTED THAT DURING TAKEOFF CLIMB, THE NOSE OF THE ACFT PITCHED DOWN DESPITE THE APPLICATION OF AFT ELEVATOR PRESSURE. THE ACFT CONTACTED THE RWY AND BOUNCED. THE PLT THEN REDUCED PWR AND THE ACFT ONCE AGAIN CONTACTED THE RWY NOSE FIRST BEFORE COMING TO REST.

## Aircraft

- Registration: [N935AB](https://openairdocs.org/deregistered/N935AB-2009-08-12), registration cancelled 2009-08-12, S/N 8 (OpenAirDocs)
- Reported make and model: BORRESON DRAGON FLY
- Registry model: [Borreson Arnold DRAGONFLY](https://openairdocs.org/model/borreson-arnold-dragonfly) (registry code 05644KN) (OpenAirDocs)
- Category: Airplane, amateur-built
- Serial number: 8
- Engines: Volkswagen UNKNOWN reciprocating
- Damage: Substantial damage
- Flight: Part 91
- Operator: Arnold Borreson
- Registered owner: Arnold Borreson
- Airworthiness certificate: Special, Experimental (Special)
- Departed: BYI, BURLEY, ID
- Airport: BYI, Burley

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 37; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 379 total, 5 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 50° at 12 knots
- Visibility: 30 statute miles
- Lowest ceiling: 25,000 ft overcast
- Temperature: 55 °F, dew point 41 °F
- Altimeter: 30.00 inHg
- Observed at: BYI

## 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 19850628028719A](https://openairdocs.org/incident/19850628028719A), Jun 28, 1985: Amtr DRAGONFLY, Burley, ID, Substantial damage. Became airborne and nose pitched down despite application of aft elevator. Bounced hard and veered. Canard broken.

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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