# NTSB LAX84LA423: Grumman G-164B, N6689Q, Maricopa, AZ, August 1, 1984

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: August 1, 1984, 01:00 local (08:00 UTC)
- Place: Maricopa, AZ
- Coordinates: 33.449611, -112.08078 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=33.4496&lon=-112.0808&mi=10
- Phase of flight: [Emergency descent](https://openairdocs.org/ntsb-phases/600) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 24358
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX84LA423
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/24358/pdf
- Page: https://openairdocs.org/ntsb/LAX84LA423

## Sequence of events

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

- In flight collision with object, descent - emergency
  - object - wire,transmission (contributing factor)
  - clearance - not attained, pilot in command (cause)
  - weather condition - gusts (contributing factor)
  - aircraft weight and balance - disregarded, pilot in command (cause)
  - aircraft performance,takeoff capability - exceeded (contributing factor)
  - load jettison - performed, pilot in command (contributing factor)
  - weather condition - temperature extremes (contributing factor)
  - remedial action - delayed, pilot in command (cause)
  - performance data - not identified, pilot in command (cause)
  - throttle/power control - improper use of, pilot in command (cause)
- In flight collision with terrain/water, descent
- Nose over, other

## Analysis

THE PLT ADDED FUEL AND CHEMICALS FOR A TOTAL OF ABOUT 230 GALLONS OF CARGO. THE TEMPERATURE WAS 87 DEGREES AND THE ARPT ELEVATION IS 1100 FT. THE DENSITY ALT WAS NOT COMPUTED AND PERFORMANCE NOT ASSESSED. AFTER TAKEOFF IN A CROSSWIND TURN THE ACFT 'QUIT FLYING'. THE PLT SAID HE 'ADDED POWER' AND DUMPED THE LOAD BUT HIT A POWER LINE WITH THE TAILWHEEL. THE ACFT BOUNCED AND NOSED OVER. THE ACTUAL IMPACT WAS ON A DOWNWIND HEADING AS HE WAS TURNING 180 DEGREES TO SPRAY A FIELD JUST ADJACENT TO THE AIRPTRIP. THE PLT MADE NO RECOMMENDATIONS FOR PREVENTION OF FURTHER ACCIDENTS OF THIS TYPE.

## Aircraft

- Registration: [N6689Q](https://openairdocs.org/aircraft/N6689Q), registered now, S/N 205B (OpenAirDocs)
- Reported make and model: GRUMMAN 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)
- Category: Airplane
- Serial number: 205B
- Airframe hours: 6
- Engines: P&W R985 450 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Operator: San Tan Dusters Inc
- Registered owner: San Tan Dusters, Inc.
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, June 14, 1984, 3,650 hours before
- Departed: NONE, MARICOPA, AZ

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 29; airline transport; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 1, valid medical--no waivers/lim.; seat: center; flight hours: 10,800 total, 7,000 in this make and model

## Weather

- Conditions: Visual (VMC), Night/dark
- Wind: 180° at 8 knots
- Visibility: 40 statute miles
- Lowest ceiling: none
- Temperature: 88 °F

## 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 19840801039559A](https://openairdocs.org/incident/19840801039559A), Aug 1, 1984: Scwzer G164B, Maricopa, AZ, Substantial damage. Aircraft collided with wires during aerial application flight. Pilot was making procedure turn when crash occurred.

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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