# NTSB SEA85LA184: Grumman 164, N742Y, Klamath Falls, OR, July 28, 1985

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: July 28, 1985, 10:00 local (17:00 UTC)
- Place: Klamath Falls, OR
- Coordinates: 42.309707, -122.069633 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=42.3097&lon=-122.0696&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): 40214
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA85LA184
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/40214/pdf
- Page: https://openairdocs.org/ntsb/SEA85LA184

## Sequence of events

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

- On ground/water encounter with weather, landing - flare/touchdown
  - weather condition - unfavorable wind (contributing factor)
- Loss of control - on ground/water, landing - roll
  - landing gear,normal brake system - failure,partial (cause)
  - landing gear,normal brake system - worn (cause)
  - operation with known deficiencies in equipment - disregarded, pilot in command (cause)
  - directional control - not possible, pilot in command (cause)
  - ground loop/swerve - uncontrolled, pilot in command (cause)
- On ground/water collision with object, landing - roll
  - object - fence

## Analysis

A LANDING WAS BEING MADE ON AN AGRICULTURAL AIRSTRIP WHEN A DUST DEVIL WAS ENCOUNTERED. DURING APPLICATION OF BRAKES THE RIGHT BRAKE FAILED DUE TO A LEAKING O RING. THE AIRCRAFT THEN VEERED RIGHT STRIKING A FENCE.

## Aircraft

- Registration: [N742Y](https://openairdocs.org/deregistered/N742Y-2012-11-05), registration cancelled 2012-11-05, S/N 319, built 1964 (OpenAirDocs)
- Reported make and model: GRUMMAN 164
- Registry model: [Grumman G-164](https://openairdocs.org/model/grumman-g-164) (registry code 3952702) (OpenAirDocs)
- Registry engine: [Jacobs R755A series](https://openairdocs.org/engine/jacobs-r755a-series) (registry code 35006, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 319
- Engines: JACOBS R-755A2M1 300 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Registered owner: Aero-Agra
- Airworthiness certificate: Special, Restricted (Special)
- Airport: None

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 60; commercial; airplane ratings: single-engine land; medical: class 2, expired; seat: center

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 50 statute miles
- Lowest ceiling: none
- Temperature: 84 °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 19850728035149A](https://openairdocs.org/incident/19850728035149A), Jul 28, 1985: Scwzer G164, Klamath Falls, OR, Substantial damage. Dust devil present on landing. Right brake failed on application and aircraft struck a fence after leaving runway.

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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