# NTSB LAX85LA360: Schweizer G-164B, N6749K, Tolleson, AZ, August 21, 1985

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Limited investigation · Final report
- Date: August 21, 1985, 10:00 local (17:00 UTC)
- Place: Tolleson, AZ
- Coordinates: 33.420738, -112.270523 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=33.4207&lon=-112.2705&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 2 serious
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 24810
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX85LA360
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/24810/pdf
- Page: https://openairdocs.org/ntsb/LAX85LA360

## Sequence of events

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

- Loss of engine power, cruise - normal
  - eng assembly,blower/impeller/integral supercharger - failure,total (cause)
- Overrun, landing - roll
  - in-flight planning/decision - inadequate, pilot in command (cause)
- On ground/water collision with object, landing - roll
  - object - utility pole
- Fire, landing - roll
  - fuel system - buckled

## Analysis

ACCORDING TO THE PILOT,THE ENGINE LOST PARTIAL POWER WHILE IN CRUISE FLT. HE SELECTED A COTTON FIELD IN WHICH TO MAKE A PRECAUTIONARY LNG. THE AIRCRAFT OVER SHOT THE INTENDED LANDING AREA AND IMPACTED A UTILITY POLE. THE COLLISION RUPTURED THE FUEL SYSTEM AND THE FUEL IGNITED.

## Aircraft

- Registration: [N6749K](https://openairdocs.org/deregistered/N6749K-2013-05-01), registration cancelled 2013-05-01, S/N 448B, built 1978 (OpenAirDocs)
- Reported make and model: SCHWEIZER G-164B
- Registry model: [Grumman Acft ENG Cor-Schweizer G-164B](https://openairdocs.org/model/grumman-acft-eng-cor-schweizer-g-164b) (registry code 3952802) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R1340 series](https://openairdocs.org/engine/pratt-whitney-r1340-series) (registry code 52016, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 448B
- Airframe hours: 2170
- Engines: P&W R1340-AN1 600 horsepower reciprocating
- Damage: Destroyed
- Fire: On-Ground
- Flight: Ferry, Part 91
- Operator: Country Boy Aerial Applicators
- Registered owner: Robert S. Leverton
- Airworthiness certificate: Special, Restricted (Special)
- Departed: TOLLESON, AZ

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; commercial; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 1, valid medical--w/ waivers/lim; seat: center; flight hours: 6,708 total, 2,000 in this make and model

## Weather

- Conditions: Visual (VMC), Day
- Wind: 100° at 4 knots
- Visibility: 40 statute miles
- Lowest ceiling: none
- Temperature: 90 °F, dew point 68 °F
- Altimeter: 30.00 inHg
- Observed at: PHX, 3 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 19850821039799A](https://openairdocs.org/incident/19850821039799A), Aug 21, 1985: Scwzer G164B, Tolleson, AZ, Destroyed. Landed in field. Hit pole. Burst into flames after power loss. Supercharger impeller worn,FOD in air intake system.

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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