# NTSB FTW90DPA01: Grumman G-164B, N48372, Bonham, TX, April 4, 1990

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: April 4, 1990, 13:10 local (18:10 UTC)
- Place: Bonham, TX
- Coordinates: 33.580959, -96.180183 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=33.5810&lon=-96.1802&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report November 9, 1992
- Report: Approved by Office Director
- NTSB case key (mKey): 22927
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW90DPA01
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/22927/pdf
- Page: https://openairdocs.org/ntsb/FTW90DPA01

## Probable cause

A POWER LOSS FOR UNDETERMINED REASONS. A FACTOR WAS THE LACK OF SUITABLE TERRAIN FOR THE FORCED LANDING.

## Sequence of events

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

- Loss of engine power, takeoff - initial climb
  - reason for occurrence undetermined (cause)
- Forced landing, descent - emergency
  - terrain condition - none suitable (contributing factor)

## Analysis

AT 75 TO 80 FEET AGL, SHORTLY AFTER TAKEOFF, THE PILOT EXPERIENCED A TOTAL LOSS OF POWER FOR UNDETERMINED REASONS. HE WAS ABLE TO CLEAR A TREE LINE AND A FENCE BUT IMPACTED WITH ROUGH TERRAIN.

## Aircraft

- Registration: [N48372](https://openairdocs.org/aircraft/N48372), registered now, S/N 12B, built 1976 (OpenAirDocs)
- Reported make and model: GRUMMAN G-164B
- Registry model: [Grumman Acft ENG Cor-Schweizer G-164B](https://openairdocs.org/model/grumman-acft-eng-cor-schweizer-g-164b) (registry code 3952802) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R-985 series](https://openairdocs.org/engine/pratt-whitney-r-985-series) (registry code 52008, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 12B
- Airframe hours: 5212
- Engines: P&W R-985-AN14B 450 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Operator: Green, George, doing business as Green Sprayers, Inc.
- Registered owner: Cherlyn Wegrzyn
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, April 26, 1989, 310 hours before

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 39; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--no waivers/lim.; seat: front; flight hours: 5,028 total, 2,500 in this make and model, 5,028 as pilot in command, 90 in the last 90 days, 45 in the last 30 days, 8 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 0° at 5 knots, gusting 8
- Visibility: 7 statute miles
- Lowest ceiling: none
- Temperature: 70 °F

## 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 19900404007559A](https://openairdocs.org/incident/19900404007559A), Apr 4, 1990: Grumav STCG164, Bonham, TX, Substantial damage. Engine quit on takeoff. Crash landed off end of runway. No report on cause of power loss.

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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