# NTSB LAX83LA330: Grumman G-164, N9707, Princeton, CA, July 11, 1983

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: July 11, 1983, 11:30 local (18:30 UTC)
- Place: Princeton, CA
- Coordinates: 39.409557, -122.040039 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=39.4096&lon=-122.0400&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): 23786
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX83LA330
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/23786/pdf
- Page: https://openairdocs.org/ntsb/LAX83LA330

## 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,cylinder - failure,total (cause)
  - engine assembly,cylinder - separation (cause)
- Forced landing, landing - flare/touchdown

## Analysis

THE ACFT MADE A FORCED LANDING AND WAS DESTROYED BY FIRE AFTER AN ENGINE FAILURE DURING A SPRAYING OPERATION. THE PLT STATED THAT HIS FLAGGER SAW BLACK SMOKE DURING THE PULL-UP. THE SMOKE TURNED WHITE AND WAS OBSERVED COMING FROM THE STACKS. INSPECTION OF THE ENGINE AFTER THE ACCIDENT SHOWED THAT #3 CYLINDER HEAD HAD SEPARATED ABOVE THE CYLINDER BARRELTHERE WAS NO INDICATION OF FIRE OR IMPACT DAMAGE IN THAT AREA.

## Aircraft

- Registration: [N9707](https://openairdocs.org/deregistered/N9707-2013-05-24), registration cancelled 2013-05-24, S/N 1207, built 1974 (OpenAirDocs)
- Reported make and model: GRUMMAN G-164
- 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: 1206
- Airframe hours: 3800
- Engines: P&W R985-AN1 450 horsepower reciprocating
- Damage: Destroyed
- Fire: On-Ground
- Flight: Aerial application, Part 137
- Registered owner: Dennis Michael Vest
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: 100 hour, February 15, 1983, 25 hours before
- Airport: NONE, Lambertville, runway 36, 2,600 × 100 ft, dirt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 26; commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: center; flight hours: 3,850 total, 3,805 in this make and model

## Weather

- Conditions: Visual (VMC), Day
- Wind: 360° at 5 knots, gusting 7
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 81 °F
- Altimeter: 30.00 inHg

## 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 19830711029419A](https://openairdocs.org/incident/19830711029419A), Jul 11, 1983: Scwzer G164, Princeton, CA, Destroyed. Engine failed coming out of procedure turn. Unable to check high sink rate prior to impact. Nr 3 cylinder failure.

## Other investigations on N9707 (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 OAK77DVM19](https://openairdocs.org/ntsb/OAK77DVM19), May 7, 1977: Grumman G-164 (N9707), Greenfield, CA, 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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