# NTSB DEN85LTG05: Grumman G164A, N5364, Colfax, ND, August 2, 1985

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: August 2, 1985, 10:15 local (15:15 UTC)
- Place: Colfax, ND
- Coordinates: 46.470039, -96.869979 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=46.4700&lon=-96.8700&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 16781
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN85LTG05
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/16781/pdf
- Page: https://openairdocs.org/ntsb/DEN85LTG05

## Sequence of events

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

- On ground/water encounter with terrain/water, landing - roll
  - terrain condition - soft (contributing factor)
  - terrain condition - high vegetation (contributing factor)
  - unsuitable terrain or takeoff/landing/taxi area - selected, pilot in command (cause)
- Nose down, landing - roll

## Analysis

THE PLT NOTICED THE SPRAY PUMP WAS STUCK IN THE OFF POSITION SHORTLY AFTER TAKEOFF FOR THE AERIAL APPLICATION FLT. THE DECISION WAS MADE TO LAND ON A PRIVATE STRIP AND DURING LANDING ON THE SOFT FLD, THE ACFT CONTACTED HIGH VEGETATION AND NOSED DOWN.

## Aircraft

- Registration: [N5364](https://openairdocs.org/deregistered/N5364-2012-09-12), registration cancelled 2012-09-12, S/N 645, built 1969 (OpenAirDocs)
- Reported make and model: GRUMMAN G164A
- Registry model: [Grumman G-164A](https://openairdocs.org/model/grumman-g-164a) (registry code 3952704) (OpenAirDocs)
- Registry engine: [Pratt & Whitney R-985 series](https://openairdocs.org/engine/pratt-whitney-r-985-series) (registry code 52008, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 645
- Engines: P&W R-985 450 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Registered owner: Dennis Blilie
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, June 1, 1985, 50 hours before
- Departed: WALCOTT, ND
- Destination: WALCOTT, ND

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 38; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--no waivers/lim.; seat: center; flight hours: 2,300 total, 100 in this make and model, 2,300 as pilot in command

## Weather

- Conditions: Visual (VMC), Day
- Wind: 160° at 8 knots
- Visibility: 10 statute miles
- Lowest ceiling: 3,500 ft overcast
- Temperature: 68 °F, dew point 55 °F
- Altimeter: 29.00 inHg

## 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 19850802036119A](https://openairdocs.org/incident/19850802036119A), Aug 2, 1985: Scwzer G164A, Colfax, ND, Substantial damage. Landed on unsurveyed Private strip and during rollout weeds and high grass caused aircraft to nose down.

## Other investigations on N5364 (3)

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 FTW82DA334](https://openairdocs.org/ntsb/FTW82DA334), Aug 17, 1982: Grumman G164A (N5364), Marianna, AR, substantial damage
- [NTSB FTW80DPG23](https://openairdocs.org/ntsb/FTW80DPG23), May 20, 1980: Grumman G-164A (N5364), Gerrard, AR, substantial damage
- [NTSB FTW72FPG16](https://openairdocs.org/ntsb/FTW72FPG16), Jul 29, 1971: Grumman G-164 (N5364), Keo, AR, substantial damage

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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