# NTSB LAX83LA385: Grumman G-164A, N6TF, Mohave Valley, AZ, August 14, 1983

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Limited investigation · Final report
- Date: August 14, 1983, 09:30 local (16:30 UTC)
- Place: Mohave Valley, AZ
- Coordinates: 34.860702, -114.510429 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=34.8607&lon=-114.5104&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 23821
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=LAX83LA385
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/23821/pdf
- Page: https://openairdocs.org/ntsb/LAX83LA385

## Sequence of events

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

- Loss of engine power, takeoff - initial climb
  - reason for occurrence undetermined (cause)
- Forced landing, landing - flare/touchdown
- In flight collision with object, landing - flare/touchdown
  - object - fence

## Analysis

DURING TAKEOFF AFTER REACHING ABOUT 15 FT AGL, THE PLT HEARD A 'LOUD BANG' & THE ACFT SHUDDERED. IMMEDIATELY THEREAFTER A SUBSTANTIAL LOSS OF POWER OCCURRED. THE PLT STATED HE DECREASED THE ACFT'S PITCH ATTITUDE TO AVOID STALLING. SECONDS LATER THE LEFT WING STRUCK A POLE. THE PLT THEN LOST CONTROL & THE ACFT IMPACTED A CEMENT EMBANKMENT OF AN IRRIGATION DITCH COMING TO REST INVERTED. NO ENG MALFUNCTIONS WERE FOUND. THE 15-FT HIGH POST WAS LOCATED 1/2 MI FROM THE DEPARTUREPOINT. OUTSIDE AIR TEMP WAS ESTIMATED AT 93 DEG F.

## Aircraft

- Registration: [N6TF](https://openairdocs.org/deregistered/N6TF-1984-02-09), registration cancelled 1984-02-09, S/N 1402 (OpenAirDocs)
- Reported make and model: GRUMMAN G-164A
- Registry model: [Grumman Acft ENG Cor-Schweizer G-164A](https://openairdocs.org/model/grumman-acft-eng-cor-schweizer-g-164a) (registry code 3952801) (OpenAirDocs)
- Category: Airplane
- Serial number: 1402
- Airframe hours: 3861
- Engines: P&W R-1340 600 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Registered owner: William R. Dare
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, June 8, 1983, 166 hours before
- Airport: NONE

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 37; airline transport; airplane ratings: multi-engine land, single-engine land; instrument ratings: helicopter; medical: class 1, valid medical--no waivers/lim.; seat: center; flight hours: 7,500 total, 63 in this make and model, 6,800 as pilot in command, 100 in the last 90 days, 75 in the last 30 days, 8 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 35 statute miles
- Lowest ceiling: none
- Temperature: 93 °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 19830814040929A](https://openairdocs.org/incident/19830814040929A), Aug 14, 1983: Scwzer G164A, Mohave Valley, AZ, Substantial damage. Pilot was attempting takeoff with aircraft 1167 pounds over gross weight. Wing hit 15 foot high post.

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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