# NTSB LAX83LA407: Grumman G-164B, N6757Q, Poston, AZ, August 21, 1983

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: August 21, 1983, 03:00 local (10:00 UTC)
- Place: Poston, AZ
- Coordinates: 33.830562, -114.380126 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=33.8306&lon=-114.3801&mi=10
- Phase of flight: [Takeoff](https://openairdocs.org/ntsb-phases/300) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 23833
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX83LA407
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/23833/pdf
- Page: https://openairdocs.org/ntsb/LAX83LA407

## Sequence of events

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

- Loss of control - on ground/water, takeoff - roll/run
  - light condition - night (contributing factor)
  - airport facilities,runway edge lights - unavailable (contributing factor)
  - proper alignment - not maintained, pilot in command (cause)
- On ground/water encounter with terrain/water, takeoff - roll/run
  - terrain condition - soft (contributing factor)
- Nose over, takeoff - roll/run

## Analysis

DURING TAKEOFF FROM THE UNLIGHTED STRIP THE ACFT WENT OFF THE RIGHT SIDE. THE RIGHT MAIN LANDING GEAR WENT INTO THE SOFTSANDY SHOULDER & THE ACFT FLIPPED OVER.

## Aircraft

- Registration: [N6757Q](https://openairdocs.org/deregistered/N6757Q-1989-12-20), registration cancelled 1989-12-20, S/N 268B (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: 268B
- Airframe hours: 3354
- Engines: P&W R-1340 600 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Registered owner: John Kamburoff
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, July 9, 1983, 94 hours before
- Airport: runway 36, 2,600 ×  ft, dirt

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 57; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--w/ waivers/lim; seat: front; flight hours: 17,296 total, 2,049 in this make and model, 15,876 as pilot in command, 135 in the last 90 days, 8 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Night/bright
- Wind: calm
- Visibility: 100 statute miles
- Lowest ceiling: none
- Temperature: 70 °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 19830821043889A](https://openairdocs.org/incident/19830821043889A), Aug 21, 1983: Scwzer G164B, Poston, AZ, Substantial damage. Right main gear encountered a soft area on edge of the runway on takeoff. Aircraft then nosed over.

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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