# NTSB FTW90DPA08: Morris Avid Flyer, N7128D, Kerens, TX, September 9, 1990

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Final report
- Date: September 9, 1990, 10:50 local (15:50 UTC)
- Place: Kerens, TX
- Coordinates: 32.129066, -96.220535 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=32.1291&lon=-96.2205&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report March 31, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 22934
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW90DPA08
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/22934/pdf
- Page: https://openairdocs.org/ntsb/FTW90DPA08

## Probable cause

THE PILOT'S IMPROPER COMPENSATION FOR THE WIND CONDITIONS AND THE RESULTANT INADVERTENT STALL.  FACTORS RELATED TO THE ACCIDENT WERE: THE GUSTY CROSSWIND CONDITION AND THE PILOT'S EXTENSION OF FULL FLAPERONS BEFORE DESCENDING TO THE PROPER ALTITUDE.

## Sequence of events

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

- Loss of control - in flight, landing - flare/touchdown
  - weather condition - gusts (contributing factor)
  - weather condition - crosswind (contributing factor)
  - compensation for wind conditions - improper, pilot in command (cause)
  - procedures/directives - not followed, pilot in command (contributing factor)
  - stall - inadvertent, pilot in command (cause)
  - lack of familiarity with aircraft, pilot in command
- In flight collision with terrain/water, landing
- Nose over, landing

## Analysis

AT ABOUT 100 FEET AGL ON FINAL APPROACH, THE PILOT HAD THE FLAPERONS FULLY EXTENDED AND ENCOUNTERED A GUST. CONTROL WAS LOST AND THE PILOT ATTEMPTED TO LAND IN AN ADJACENT FIELD. THE AIRPLANE STALLED AND IMPACTED RIGHT LANDING GEAR FIRST AND NOSED OVER. THE PILOT/BUILDER REPORTED THAT THE AIRPLANE FLIGHT MANUAL RECOMMENDED FULL FLAPERONS BE USED AT 20 FEET AGL OR LESS. HE FURTHER RELATED THAT HE WAS NOT ACCUSTOMED TO THE SLOWER ROLL RATE WITH FULL FLAPERONS EXTENDED.

## Aircraft

- Registration: [N7128D](https://openairdocs.org/deregistered/N7128D-1991-05-06), registration cancelled 1991-05-06, S/N 495 (OpenAirDocs)
- Reported make and model: MORRIS AVID FLYER
- Registry model: [Morris Joe M AVID FLYER SPEEDWING](https://openairdocs.org/model/morris-joe-m-avid-flyer-speedwing) (registry code 05616P7) (OpenAirDocs)
- Category: Airplane, amateur-built
- Serial number: 495
- Airframe hours: 5
- Engines: HIRTH F2703 60 horsepower reciprocating
- Damage: Destroyed
- Flight: Personal, Part 91
- Operator: Morris, Joe M.
- Airworthiness certificate: Special, Experimental (Special)
- Last inspection: Unknown, July 15, 1990, 5 hours before
- Airport: NONE, Private, runway 24, 2,800 × 100 ft, grass/turf

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 53; private; airplane ratings: single-engine land; medical: class 3, valid medical--no waivers/lim.; seat: left; flight hours: 340 total, 4 in this make and model, 320 as pilot in command, 4 in the last 90 days, 4 in the last 30 days, 2 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 225° at 10 knots, gusting 15
- Visibility: 10 statute miles
- Lowest ceiling: 6,000 ft overcast
- Temperature: 81 °F, dew point 75 °F
- Altimeter: 30.00 inHg
- Observed at: CRS, 15 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 19900909038629A](https://openairdocs.org/incident/19900909038629A), Sep 9, 1990: Amtr AVIDFLYER, Kerens, TX, Destroyed. Lost control of ultralight in a wind gust on final. Descended to right and flipped over on impact.

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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