# NTSB FTW93LA156: Grumman G-164A, N6556, Trumann, AR, May 15, 1993

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: May 15, 1993, 15:20 local (20:20 UTC)
- Place: Trumann, AR
- Coordinates: 35.670154, -90.509292 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=35.6702&lon=-90.5093&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report June 30, 1994
- Report: Approved by Office Director
- NTSB case key (mKey): 18749
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW93LA156
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/18749/pdf
- Page: https://openairdocs.org/ntsb/FTW93LA156

## Probable cause

PILOT'S FAILURE TO MAINTAIN TERRAIN CLEARANCE. A FACTOR WAS  THE DIVERTED ATTENTION OF THE PILOT.

## Sequence of events

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

- In flight collision with terrain/water, maneuvering - aerial application
  - clearance - not maintained, pilot in command (cause)
  - diverted attention, pilot in command (contributing factor)

## Analysis

THE PILOT STATED THAT WHILE FLYING AT APPROXIMATELY 8 FEET ABOVE THE GROUND HE DIVERTED HIS ATTENTION INSIDE THE COCKPIT OF THE AIRPLANE TO CHECK THE BOOM PRESSURE AND  FLEW INTO THE GROUND.

## Factual narrative

On May 15, 1993, at approximately 1520 central daylight time a     Grumman G-164A, N6556, was substantially damaged when it collided  with the ground near Trumann, Arkansas, while flying a practice    aerial application flight.  The commercial pilot was not injured. Visual meteorological conditions prevailed for the training    flight.

The pilot stated that while flying at approximately 8 feet above ground level (AGL) he diverted his attention inside the cockpit    of the airplane to check the boom pressure gauge and flew into    the ground.

## Aircraft

- Registration: [N6556](https://openairdocs.org/deregistered/N6556-2017-08-23), registration cancelled 2017-08-23, S/N 699, built 1970 (OpenAirDocs)
- Reported make and model: GRUMMAN G-164A
- Registry model: [Grumman G-164A](https://openairdocs.org/model/grumman-g-164a) (registry code 3952704) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 699
- Airframe hours: 5214
- Engines: P&W R-1340-AN1 600 horsepower reciprocating
- Damage: Substantial damage
- Flight: Instructional, Part 91
- Registered owner: Worthington, Kenny And Richard
- Airworthiness certificate: Special, Restricted (Special); Special, Special flight (Special)
- Last inspection: Annual, January 8, 1993, 5 hours before

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 30; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--no waivers/lim.; seat: center; flight hours: 305 total, 94 in this make and model, 212 as pilot in command, 76 in the last 90 days

## Weather

- Conditions: Visual (VMC), Day
- Wind: 230° at 11 knots
- Visibility: 12 statute miles
- Lowest ceiling: none
- Temperature: 82 °F, dew point 55 °F
- Altimeter: 29.00 inHg
- Observed at: JBR, 12 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 19930515013929A](https://openairdocs.org/incident/19930515013929A), May 15, 1993: Scwzer G164A, Trumann, AR, Substantial damage. While practice flying eight ft AGL. Looked inside to check sprayboom pressure. Flew into ground.

## Other investigations on N6556 (1)

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.

- [NTSB MKC90LA080](https://openairdocs.org/ntsb/MKC90LA080), Apr 4, 1990: Grumman G-164A (N6556), Mounds, AR, substantial damage. Probable cause: THE PILOT'S IMPROPER COMPENSATION FOR WIND CONDITIONS. FACTORS RELATED TO THE ACCIDENT WERE: THE PILOT'S SELECTION OF THE WRONG RUNWAY AND THE RESULTANT TAILWIND CONDITION.

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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