# NTSB MKC88LA161: Grumman G-164A, N6567, Gillett, AR, August 20, 1988

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: August 20, 1988, 09:00 local (14:00 UTC)
- Place: Gillett, AR
- Coordinates: 34.109825, -91.36956 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=34.1098&lon=-91.3696&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report October 3, 1989
- Report: Approved by Office Director
- NTSB case key (mKey): 34634
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC88LA161
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/34634/pdf
- Page: https://openairdocs.org/ntsb/MKC88LA161

## Sequence of events

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

- Loss of engine power(partial) - mech failure/malf, cruise
  - engine assembly,cylinder - failure,total (cause)
  - load jettison - performed, pilot in command
- Forced landing, descent - emergency
- Nose over, landing - roll
  - terrain condition - none suitable (contributing factor)
  - terrain condition - soft (contributing factor)

## Analysis

WHILE EN ROUTE TO ENGAGE IN AN AERIAL APPLICATION OPERATION, THE PLT SAID THE ENGINE BEGAN TO MISFIRE AND CUT OUT. UNABLE TO CORRECT THE MALFUNCTION, THE PLT DUMPED HIS CHEMICAL LOAD AND BEGAN RETURNING TO THE DEPARTURE AIRSTRIP. EN ROUTE, HE FELT HE WOULD NOT MAKE IT BACK TO THE AIRSTRIP SO HE ATTEMPTED TO MAKE AN EMERGENCY LANDING IN A BEAN FIELD. DURING THE ROLL OUT ON THE SOFT BEAN FIELD, THE ACFT NOSED OVER AND SUSTAINED SUBSTANTIAL DAMAGE. POST ACCIDENT INVESTIGATION REVEALED A BLOWN CYLINDER.

## Aircraft

- Registration: [N6567](https://openairdocs.org/deregistered/N6567-2019-09-06), registration cancelled 2019-09-06, S/N 706, 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: 706
- Engines: P&W R-1340-AN1 600 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Operator: Trites Flying Service, Inc.
- Registered owner: Trites Flying Service Inc.
- Airworthiness certificate: Special, Restricted (Special)
- Departed: NONE, GILLETT, AR
- Airport: NONE, Gordon Private Strip, runway 18, 2,500 × 150 ft, dirt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 33; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--w/ waivers/lim; seat: left; flight hours: 7,458 total, 6,774 in this make and model, 300 in the last 90 days, 150 in the last 30 days, 10 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 230° at 4 knots
- Visibility: 6 statute miles
- Lowest ceiling: none
- Temperature: 81 °F, dew point 73 °F
- Altimeter: 29.00 inHg
- Observed at: PBF, 25 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 19880820034499A](https://openairdocs.org/incident/19880820034499A), Aug 20, 1988: Scwzer G164A, Gillett, AR, Substantial damage. Blew a cylinder en route to spray field. Nosed over on the forced landing.

## Other investigations on N6567 (3)

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 CEN11LA556](https://openairdocs.org/ntsb/CEN11LA556), Aug 18, 2011: Grumman G-164A (N6567), El Campo, TX, substantial damage. Probable cause: Separation of the No. 3 cylinder exhaust valve rocker arm, which resulted in a loss of engine power.
- [NTSB FTW04LA164](https://openairdocs.org/ntsb/FTW04LA164), Jun 17, 2004: Grumman G-164A (N6567), Garwood, TX, substantial damage. Probable cause: The separation of the right main landing gear wheel and axle during take-off. Contributing factors were the fatigue of the bolts on the right main landing gear and the rough and uneven terrain.
- [NTSB SEA71FWG37](https://openairdocs.org/ntsb/SEA71FWG37), Feb 17, 1971: Grumman G-164A (N6567), St John, WA, substantial damage

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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