# NTSB MKC84LA217: Grumman G-164A, N7928, Osceola, AR, July 13, 1984

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: July 13, 1984, 16:00 local (21:00 UTC)
- Place: Osceola, AR
- Coordinates: 35.700031, -89.990409 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=35.7000&lon=-89.9904&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): 33747
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC84LA217
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/33747/pdf
- Page: https://openairdocs.org/ntsb/MKC84LA217

## 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, maneuvering - aerial application
  - engine assembly,connecting rod - failure,total (cause)
  - engine assembly,connecting rod - overload (cause)
- Forced landing, landing - flare/touchdown
  - terrain condition - none suitable (contributing factor)

## Analysis

THE ACFT CRASHED INTO A LEVEE IN A RICE FIELD AFTER LOSING ENGINE POWER DURING A SPRAY OPERATION TURN-AROUND. THE ENGINEDID NOT QUIT ENTIRELY BUT LOST ENOUGH POWER SO THAT FLT WAS NOT MAINTAINED. AN INSPECTION OF THE ENGINE REVEALED A BROKED CONNECTING ROD.

## Aircraft

- Registration: [N7928](https://openairdocs.org/deregistered/N7928-2013-05-09), registration cancelled 2013-05-09, S/N 814, built 1971 (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: 814
- Airframe hours: 5195
- Engines: P&W R-1340 600 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Registered owner: Pruitts Flying Service
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: 100 hour, February 1, 1984, 15 hours before
- Departed: VICTORIA, AR
- Destination: OSCEOLA, AR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 35; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--no waivers/lim.; seat: center; flight hours: 2,394 total, 1,400 in this make and model, 2,394 as pilot in command, 240 in the last 90 days, 8 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 91 °F, dew point 63 °F
- Altimeter: 30.00 inHg
- Observed at: JBR, 33 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 19840713034519A](https://openairdocs.org/incident/19840713034519A), Jul 13, 1984: Scwzer G164A, Osceola, AR, Substantial damage. Crash occurred during emergency landing after engine failure during aerial application flight.

## Other investigations on N7928 (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 FTW75DPG46](https://openairdocs.org/ntsb/FTW75DPG46), Apr 12, 1975: Grumman G-164A (N7928), Hickory Ridge, AR, no 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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