# NTSB CHI92DCJ02: Extra Flugzeugbau 300, N300MT, Grant, NE, March 15, 1992

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Final report
- Date: March 15, 1992, 14:30 local (21:30 UTC)
- Place: Grant, NE
- Coordinates: 40.840484, -101.719627 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=40.8405&lon=-101.7196&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 2 fatal
- Status: Completed, report August 31, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 15220
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI92DCJ02
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/15220/pdf
- Page: https://openairdocs.org/ntsb/CHI92DCJ02

## Probable cause

THE PILOT'S INADEQUATE AIRCRAFT CONTROL WHILE PERFORMING AEROBATIC MANEUVERS.

## Sequence of events

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

- Loss of control - in flight, maneuvering
  - aerobatics - performed, pilot in command
- In flight collision with terrain/water, descent - uncontrolled
  - aircraft control - inadequate, pilot in command (cause)

## Analysis

SHORTLY AFTER IT TOOK OFF, WITNESSES OBSERVED THE EXPERIMENTAL AIRPLANE 'LEVEL OFF GAINING SPEED BEFORE PULLING UP TO A...NEAR VERTICAL CLIMB.' THE AIRPLANE CLIMBED TO AN ESTIMATED 500 FEET ABOVE THE TERRAIN, THEN ENTERED A STEEP RIGHT BANK AND DESCENT INTO THE GROUND.  POST-ACCIDENT INVESTIGATION REVEALED NO EVIDENCE OF PRE-IMPACT MECHANICAL MALFUNCTION.

## Aircraft

- Registration: [N300MT](https://openairdocs.org/deregistered/N300MT-1992-08-20), registration cancelled 1992-08-20, S/N 014 (OpenAirDocs)
- Reported make and model: Extra Flugzeugbau 300
- Registry model: [Keck David HELICYCLE](https://openairdocs.org/model/keck-david-helicycle) (registry code 05616CV) (OpenAirDocs)
- Category: Airplane
- Serial number: 014
- Airframe hours: 215
- Engines: LYCOMING AEIO-540-L1BS 300 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Thomsic, Michael F
- Registered owner: Thomsic, Michael F
- Airworthiness certificate: Special, Experimental (Special)
- Last inspection: Annual, January 21, 1992, 36 hours before
- Departed: BFF, SCOTTSBLUFF, NE
- Airport: GGF, Grant Municipal, runway 15, 3,800 × 50 ft

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 49; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: rear; toxicology performed; flight hours: 335 total, 148 in this make and model, 252 as pilot in command, 35 in the last 90 days, 14 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 180° at 18 knots, gusting 23
- Visibility: 15 statute miles
- Lowest ceiling: none
- Temperature: 59 °F, dew point 34 °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 19920315006189A](https://openairdocs.org/incident/19920315006189A), Mar 15, 1992: Rhnflu EXTRA300, Gran, NE, Substantial damage, 2 fatal. Vertical pullup on climbout. Snap rolled. Entered cross control spin. Unable to recover.

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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