# NTSB SEA91LA132: Duffy Smith Mini Plane, N27JD, Ogden, UT, June 15, 1991

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: June 15, 1991, 11:47 local (17:47 UTC)
- Place: Ogden, UT
- Location: 41.1951° N, 112.0122° W: Placed by OpenAirDocs at OGDEN-HINCKLEY (OGD), within about a mile (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=41.1951&lon=-112.0122&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 April 8, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 41450
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA91LA132
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/41450/pdf
- Page: https://openairdocs.org/ntsb/SEA91LA132

## Probable cause

A PREMATURE LIFTOFF AND SUBSEQUENT STALL.

## 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
  - lift-off - premature, pilot in command (cause)
  - stall - inadvertent, pilot in command (cause)
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

THE ACFT DRIFTED TOWARD THE SIDE OF THE RUNWAY DURING TAKEOFF ROLL AND THE PILOT INITIATED A TAKEOFF AT A LOW AIRSPEED IN A NOSE HIGH ATTITUDE.  HE ATTEMPTED TO ABORT THE TAKEOFF AT A LOW ALTITUDE.  THE ACFT IMPACTED THE GROUND BESIDE THE RWY IN A RIGHT BANK, NOSE LOW ATTITUDE AND CARTWHEELED.

## Aircraft

- Registration: [N27JD](https://openairdocs.org/aircraft/N27JD), registered now, S/N 1 (OpenAirDocs)
- Reported make and model: DUFFY SMITH MINI PLANE (SMITH MINI)
- Registry model: [Duffy James W SMITH MINIPLANE DSA1](https://openairdocs.org/model/duffy-james-w-smith-miniplane-dsa1) (registry code 8350263) (OpenAirDocs)
- Category: Airplane, amateur-built
- Serial number: 1
- Engines: LYCOMING O-290-D 125 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: James W. Duffy
- Registered owner: James W. Duffy
- Airworthiness certificate: Special, Experimental (Special)
- Airport: OGD, Ogden, runway 16, 5,352 × 150 ft, asphalt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 48; private; airplane ratings: single-engine land; medical: class 3, valid medical--w/ waivers/lim; flight hours: 441 total, 420 as pilot in command

## Weather

- Conditions: Visual (VMC), Day
- Wind: 180° at 3 knots
- Visibility: 50 statute miles
- Lowest ceiling: none
- Temperature: 70 °F, dew point 30 °F
- Altimeter: 30.00 inHg

## 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 19910615021959A](https://openairdocs.org/incident/19910615021959A), Jun 15, 1991: Amtrsm MINIPLANE*, Ogden, UT, Substantial damage. Drifted on liftoff on maiden flight in nose high atitude. Aborted and hit runway nose down wing low. Cartwheeled.

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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