# NTSB LAX88DVG02: Grumman G-164A, N673U, Williams, CA, December 2, 1987

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: December 2, 1987, 14:45 local (22:45 UTC)
- Place: Williams, CA
- Coordinates: 39.110595, -122.270744 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=39.1106&lon=-122.2707&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report June 16, 1989
- Report: Approved by Office Director
- NTSB case key (mKey): 25764
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX88DVG02
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/25764/pdf
- Page: https://openairdocs.org/ntsb/LAX88DVG02

## Sequence of events

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

- Loss of engine power(total) - nonmechanical, cruise - normal
  - weather condition - carburetor icing conditions (contributing factor)
  - carburetor heat - improper use of, pilot in command (cause)
- Forced landing, descent - emergency
  - terrain condition - rising
- On ground/water collision with object, landing - roll
  - object - fence (contributing factor)

## Analysis

SHORTLY AFTER TAKEOFF, THE ENGINE EXPERIENCED A LOSS OF ENGINE POWER. THE PILOT MADE A FORCED LANDING AND COLLIDED WITH A FENCE ON HILLY TERRAIN DURING THE LANDING ROLL. THE ENGINE WAS INSPECTED WITH NO REPORTED MECHANICAL FAILURES OR MALFUNCTIONS. WX CONDITIONS WERE CONDUCIVE TO MODERATE CARBURETOR ICING AT CRUISE POWER OR SERIOUS ICING AT GLIDE POWER. PLT WAS AT CRUISE POWER (2000 RPM) AT TIME OF PWR LOSS.

## Aircraft

- Registration: [N673U](https://openairdocs.org/deregistered/N673U-1997-04-21), registration cancelled 1997-04-21, S/N 412 (OpenAirDocs)
- Reported make and model: GRUMMAN G-164A
- Registry model: [Grumman G-164A](https://openairdocs.org/model/grumman-g-164a) (registry code 3952704) (OpenAirDocs)
- Category: Airplane
- Serial number: 412
- Airframe hours: 8279
- Engines: P&W R-1340-AN-1 550 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Registered owner: Charter Aviation, Inc.
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: 100 hour, November 18, 1987, 6 hours before

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 50; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--w/ waivers/lim; flight hours: 13,250 total, 3,500 in this make and model, 4,700 as pilot in command, 15 in the last 90 days, 15 in the last 30 days, 3 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 150° at 13 knots
- Visibility: 7 statute miles
- Lowest ceiling: 2,500 ft broken
- Temperature: 61 °F, dew point 52 °F
- Altimeter: 30.00 inHg
- Observed at: MYV, 26 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 19871202069019A](https://openairdocs.org/incident/19871202069019A), Dec 2, 1987: Scwzer G164A, Williams, CA, Substantial damage. Encountered downdraft in lee of hills. Dumped load but settled into ground. Blamed engine. No defects found.

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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