# NTSB NYC83FFJ02: Grumman G-164A, N5309, Clarkson, NY, April 30, 1983

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: April 30, 1983, 16:45 local (21:45 UTC)
- Place: Clarkson, NY
- Location: 43.2398° N, 77.9162° W: Placed by OpenAirDocs: center of Clarkson, NY, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=43.2398&lon=-77.9162&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 35090
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC83FFJ02
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/35090/pdf
- Page: https://openairdocs.org/ntsb/NYC83FFJ02

## Sequence of events

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

- In flight encounter with weather, cruise - normal
  - weather condition - thunderstorm (contributing factor)
  - weather condition - rain (contributing factor)
  - weather condition - high wind (contributing factor)
  - weather condition - turbulence(thunderstorms) (contributing factor)
  - flight into known adverse weather - continued, pilot in command (cause)
- Loss of control - in flight, cruise - normal
- In flight collision with terrain/water, descent - uncontrolled

## Analysis

THE PILOT WAS DIVERTING FROM THE ARPT OF DEPARTURE TO AN ALTERNATE ARPT BECAUSE OF THE SEVERE WEATHER. THE TURBULENCE ENCOUNTERED WAS SO SEVERE, ACCORDING TO THE PILOT'S STATEMENT, THAT HE LOST CONTROL OF THE ACFT. PARTIAL CONTROL WAS REGAINED BUT TOO LATE TO AVOID GROUND CONTACT.

## Aircraft

- Registration: [N5309](https://openairdocs.org/deregistered/N5309-2004-08-02), registration cancelled 2004-08-02, S/N 592, built 1969 (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 R-985 series](https://openairdocs.org/engine/pratt-whitney-r-985-series) (registry code 52008, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 592
- Airframe hours: 3527
- Engines: P&W R985AN14B 450 horsepower reciprocating
- Damage: Substantial damage
- Fire: Unknown
- Flight: Aerial application, Part 137
- Operator: Edward P. Steuber, doing business as Ont-Aero Spray Service
- Registered owner: Edward P. Steuber
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, April 7, 1983, 34 hours before
- Departed: P/T, CLARKSON, NY

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 36; commercial; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; seat: center; flight hours: 3,550 total, 1,550 in this make and model, 3,450 as pilot in command

## Weather

- Conditions: Visual (VMC), Day
- Visibility: 6 statute miles
- Temperature: 66 °F, dew point -0 °F
- Observed at: ROC, 15 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 19830430016839A](https://openairdocs.org/incident/19830430016839A), Apr 30, 1983: Scwzer G164A, Clarkson, NY, Substantial damage. Pilot reported thunderstorm forced airplane into ground during positioning flight after spraying operation.

## Other investigations on N5309 (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 FTW70FPG25](https://openairdocs.org/ntsb/FTW70FPG25), May 4, 1970: Grumman G-164A (N5309), Amagon, 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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