# NTSB CHI85LA265: Grumman-Schweizer G-164B, N8400K, Thief River Fl, MN, July 3, 1985

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: July 3, 1985, 10:10 local (15:10 UTC)
- Place: Thief River Fl, MN
- Coordinates: 48.110797, -96.169898 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=48.1108&lon=-96.1699&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 13120
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI85LA265
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/13120/pdf
- Page: https://openairdocs.org/ntsb/CHI85LA265

## Sequence of events

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

- Loss of control - in flight, takeoff - initial climb
  - stall - intentional, pilot in command (cause)
  - airspeed(vlof) - inattentive, pilot in command (cause)

## Analysis

THE ACFT COLLIDED WITH THE GROUND SHORTLY AFTER TAKEOFF ABOUT 800 FT FROM THE END OF THE RWY. THE PLT STATED THAT AT ABOUT 5 PT AFL THE ACFT STALLED AND FELL INTO A FIELD OFF THE END OF THE RWY.

## Aircraft

- Registration: [N8400K](https://openairdocs.org/aircraft/N8400K), registered now, S/N 685B, built 1982 (OpenAirDocs)
- Reported make and model: Grumman-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: [AiResearch TPE331 series](https://openairdocs.org/engine/airesearch-tpe331-series) (registry code 01517, turbo-prop) (OpenAirDocs)
- Category: Airplane
- Serial number: 685B
- Airframe hours: 1015
- Engines: P&W R1340 600 horsepower reciprocating
- Damage: Destroyed
- Flight: Aerial application, Part 137
- Registered owner: Dean E. Phillip
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, November 26, 1984, 120 hours before
- Airport: Deans Airport, runway 9, 2,640 × 50 ft, grass/turf

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 30; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--no waivers/lim.; seat: center; flight hours: 2,000 total, 115 in this make and model, 1,900 as pilot in command, 115 in the last 90 days, 5 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 210° at 13 knots
- Visibility: 20 statute miles
- Lowest ceiling: none
- Temperature: 81 °F, dew point 59 °F
- Altimeter: 29.00 inHg
- Observed at: GFK, 37 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 19850703031409A](https://openairdocs.org/incident/19850703031409A), Jul 3, 1985: Scwzer G164B, Thief River Fal, MN, Destroyed. Stalled after downwind liftoff and impacted ground 800 feet from runway end.

## Other investigations on N8400K (1)

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.

- [NTSB CEN16LA173](https://openairdocs.org/ntsb/CEN16LA173), May 4, 2016: Grumman Acft ENG Cor-Schweizer G 164B (N8400K), Iowa, LA, substantial damage. Probable cause: The pilot's failure to maintain directional control while landing with an inoperative right brake.

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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