# NTSB SEA82DA058: Grumman G-164A, N4897, S. Of Echo, OR, April 25, 1982

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: April 25, 1982, 11:30 local (18:30 UTC)
- Place: S. Of Echo, OR
- Coordinates: 45.659404, -119.230667 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=45.6594&lon=-119.2307&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report April 25, 1983
- Report: Approved by Office Director
- NTSB case key (mKey): 72441
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA82DA058
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/72441/pdf
- Page: https://openairdocs.org/ntsb/SEA82DA058

## 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 - aerial application
  - engine assembly,cylinder - cracked (cause)
  - engine assembly,cylinder - fatigue (cause)
- Forced landing, descent - emergency
- Nose over, landing - roll
  - terrain condition - soft (contributing factor)

## Analysis

DURING A SPRAY RUN THE PILOT EXPERIENCED A POWER LOSS. AFTER PULLING UP TO 100 FEET AGL AND TURNING 90 DEGREES THE ENGINE CEASED TO OPERATE. THE PILOT COMPLETED A FORCED LANDING IN A NEARBY SOFT WHEAT FIELD AND AFTER ROLLING APPROXIMATELY 300 FEET THE AIRCRAFT BECAME INVERTED. INSPECTION OF THE ENGINE REVEALED THAT THE NUMBER 6 CYLINDER HAD SEPARATED WHERE IT ATTACHES TO THE CYLINDER HEAD AND IN THE AREA OF AN OLD CRACK.

## Aircraft

- Registration: [N4897](https://openairdocs.org/deregistered/N4897-1993-05-28), registration cancelled 1993-05-28, S/N 1094 (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: 1094
- Airframe hours: 3170
- Engines: P & W R1340-AN1 600 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Operator: West Flying Service
- Registered owner: West Flying Service
- Departed: S. OF ECHO, OR
- Destination: S. OF ECHO, OR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 36; flight instructor, airline transport; airplane ratings: single-engine land, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--no waivers/lim.; flight hours: 9,999 total, 4,000 in this make and model, 9,999 as pilot in command, 225 in the last 90 days, 75 in the last 30 days, 6 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 110° at 3 knots
- Visibility: 30 statute miles
- Temperature: 136 °F
- Altimeter: 30.00 inHg
- Observed at: PDT, 16 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 19820425011509A](https://openairdocs.org/incident/19820425011509A), Apr 25, 1982: Scwzer G164A, Echo, OR, Substantial damage. Engine cylinder cracked during ag operations. Landed in plowed field. Airplane flipped over.

## Other investigations on N4897 (2)

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 SEA84LA097](https://openairdocs.org/ntsb/SEA84LA097), Apr 28, 1984: Grumman G-164A (N4897), Hermiston, OR, substantial damage
- [NTSB LAX74DUJ16](https://openairdocs.org/ntsb/LAX74DUJ16), Aug 27, 1973: Grumman G-164A (N4897), Arlington, AZ, 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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