# NTSB MKC85LA006: Grumman G-164A, N8644H, Cotton Plant, AR, October 11, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: October 11, 1984, 10:00 local (15:00 UTC)
- Place: Cotton Plant, AR
- Coordinates: 34.999622, -91.249023 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=34.9996&lon=-91.2490&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 33878
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC85LA006
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/33878/pdf
- Page: https://openairdocs.org/ntsb/MKC85LA006

## Sequence of events

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

- Loss of engine power(total) - mech failure/malf, maneuvering - aerial application
  - engine assembly,master rod - failure,total (cause)
- Forced landing, descent - emergency
- Nose over, landing - roll
  - terrain condition - crop

## Analysis

DURING AERIAL APPLICATION FLIGHT, THE ENGINE MASTER CONNECTING ROD FAILED. FORCED LANDING WAS PERFORMED IN A COTTON FIELD. ACFT NOSED OVER DURING LANDING ROLL DUE TO TERRAIN CONDITIONS. ENGINE HAD 176 HOURS SINCE MAJOR OVHL.

## Aircraft

- Registration: [N8644H](https://openairdocs.org/aircraft/N8644H), registered now, S/N 1444, built 1975 (OpenAirDocs)
- Reported make and model: GRUMMAN G-164A
- Registry model: [Grumman Acft ENG Cor-Schweizer G-164A](https://openairdocs.org/model/grumman-acft-eng-cor-schweizer-g-164a) (registry code 3952801) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 1444
- Airframe hours: 2100
- Engines: P&W R-1340 600 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Registered owner: Jim Davis(Davis Flying Serv.)
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, April 30, 1984
- Departed: COTTON PLANT, AR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 47; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--w/ waivers/lim; seat: center; flight hours: 11,576 total

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 5 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 19841011056619A](https://openairdocs.org/incident/19841011056619A), Oct 11, 1984: Scwzer G164A, Cotton Plant, AR, Substantial damage. Crash occurred during emergency landing after engine failure due to connecting rod failure.

## Other investigations on N8644H (2)

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 MKC88LA116](https://openairdocs.org/ntsb/MKC88LA116), Jun 22, 1988: Grumman G-164A (N8644H), Cotton Plant, AR, substantial damage
- [NTSB FTW76DPG93](https://openairdocs.org/ntsb/FTW76DPG93), Aug 3, 1976: Grumman G-164 (N8644H), Cotton Plant, AR, 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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