# NTSB SEA85LA077: Grumman G-164-A, N5326, Dufur, OR, March 17, 1985

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: March 17, 1985, 09:50 local (17:50 UTC)
- Place: Dufur, OR
- Coordinates: 45.399585, -121.160926 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=45.3996&lon=-121.1609&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 40131
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA85LA077
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/40131/pdf
- Page: https://openairdocs.org/ntsb/SEA85LA077

## Sequence of events

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

- Loss of engine power(total) - mech failure/malf, maneuvering
  - throttle/power lever,linkage - separation (cause)
- Forced landing, descent - emergency
- Main gear collapsed, landing - flare/touchdown
  - terrain condition - rough/uneven (contributing factor)
  - landing gear,main gear - overload (contributing factor)
- Nose over, landing - roll
  - terrain condition - soft (contributing factor)

## Analysis

A LOSS OF POWER OCCURRED DURING AERIAL APPLICATION AND A FORCED LANDING WAS MADE ONTO A FIELD. THE RIGHT MAIN GEAR SANK INTO A HOLE AND WAS TORN OFF. THE ACFT THEN FLIPPED INVERTED. THE THROTTLE LEAKAGE WAS FOUND TO BE BROKEN.

## Aircraft

- Registration: N5326 (not matched to a registry record)
- Reported make and model: GRUMMAN G-164-A
- Category: Airplane
- Serial number: 1130
- Airframe hours: 6000
- Engines: P&W R-1340 600 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Operator: Aero Spray
- Registered owner: Dufur Valley Aviation
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, March 1, 1985
- Departed: DUFUR, OR
- Destination: DUFUR, OR
- Airport: None

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 39; commercial; airplane ratings: single-engine land; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; seat: center; flight hours: 2,400 total, 200 in this make and model, 2,000 as pilot in command, 40 in the last 90 days, 6 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 50 statute miles
- Lowest ceiling: none
- Temperature: 55 °F

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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