# NTSB NYC07LA207: Grumman G-164A, N6578, Goshen, NY, September 1, 2007

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: September 1, 2007, 08:47 local (12:47 UTC)
- Place: Goshen, NY
- Coordinates: 41.509723, -74.264442
- Nearby events: https://openairdocs.org/map.md?lat=41.5097&lon=-74.2644&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report July 30, 2008
- Report: Approved by Office Director
- Parties: FAA/FSDO
- NTSB case key (mKey): 66568
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=NYC07LA207
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/66568/pdf
- Page: https://openairdocs.org/ntsb/NYC07LA207

## Probable cause

A loss of engine power during cruise flight for undetermined reasons.

## Sequence of events

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

- Loss of engine power, cruise
  - reason for occurrence undetermined
- Forced landing, emergency descent/landing
- On ground/water encounter with terrain/water, emergency landing
- Nose over, emergency landing

## Analysis

While ferrying the airplane from one field to another, at an altitude of 50 feet, to continue the aerial application flight, the airplane's engine "coughed or backfired." The pilot performed a forced landing to a road, during which the airplane flipped over and was substantially damaged. Examination of the radial engine revealed no mechanical anomalies, other than carbon deposits observed in the carburetor intake.

## Factual narrative

On September 1, 2007, at 0847 eastern daylight time, a Grumman G-164A, N6578, was substantially damaged during a forced landing in Goshen, New York. The certificated commercial pilot was not injured. Visual meteorological conditions prevailed, and no flight plan was filed for the local aerial application flight, which was conducted under 14 Code of Federal Regulations Part 137.

According to the pilot, he was ferrying the airplane from one field to a second field, to continue applying fertilizer to crops, when at an altitude of 50 feet, the airplane's engine "coughed or backfired."  He performed a forced landing to a farm road, during which the landing gear impacted an irrigation ditch, and the airplane flipped onto its back, substantially damaging the airplane's wings and tail.

Examination of the airplane by a Federal Aviation Administration (FAA) inspector revealed approximately 40 gallons of fuel were drained from the airplane. The nine-cylinder radial engine was rotated by the propeller crankshaft, and valve train continuity and cylinder compression were confirmed. The left magneto was rotated and produced spark at all terminal leads. Examination of the carburetor intake revealed carbon deposits. No additional mechanical anomalies were observed with the airplane or engine.

The weather reported at Orange County Airport (MGJ), Montgomery, New York, approximately 7 miles to the north, at 0854, included calm winds, 10 miles visibility, temperature 19 degrees Celsius, dew point 13 degrees Celsius, and barometric pressure setting of 30.16 inches of mercury.

## Aircraft

- Registration: [N6578](https://openairdocs.org/deregistered/N6578-2009-11-16), registration cancelled 2009-11-16, S/N 717, 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 R-985 series](https://openairdocs.org/engine/pratt-whitney-r-985-series) (registry code 52008, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 717
- Engines: Pratt & Whitney R-985 450 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Registered owner: Airspray Inc.
- Airworthiness certificate: Special, Restricted (Special)
- Departed: NK79, Slate Hill, NY

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 67; injuries: none; commercial; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, with waivers/limitations; last flight review February 1, 2006; seat: front; flight hours: 18,000 total, 14,000 in this make and model

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 66 °F, dew point 55 °F
- Altimeter: 30.15 inHg
- Observed at: MGJ, 7 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 20070901829849A](https://openairdocs.org/incident/20070901829849A), Sep 1, 2007: Scwzer G164A, Goshen, NY, Destroyed. (-23) After dispensing crop fertilizer at one location and heading to another nearby field at low altitude (approx. 50 ft AGL), PIC experienced a single loud…

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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