# NTSB FTW87DRD14: Grumman G-164B, N48614, Oak Grove, LA, August 12, 1987

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: August 12, 1987, 18:30 local (23:30 UTC)
- Place: Oak Grove, LA
- Coordinates: 32.860408, -91.390472 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=32.8604&lon=-91.3905&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report August 31, 1988
- Report: Approved by Office Director
- NTSB case key (mKey): 22208
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW87DRD14
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/22208/pdf
- Page: https://openairdocs.org/ntsb/FTW87DRD14

## Sequence of events

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

- Loss of engine power, maneuvering - aerial application
  - reason for occurrence undetermined (cause)
- Forced landing, descent - emergency
- Nose over, landing - roll
  - terrain condition - soft (contributing factor)

## Analysis

AFTER COMPLETING THE LAST PASS OF AN AGRICULTURAL OPERATION THE PILOT PULLED UP AND STARTED A TURN. AT THIS TIME THE ENGINE STARTED SHAKING AND LOSING POWER. THE PILOT ATTEMPTED A FORCED LANDING IN A SOFT FIELD. THE WHEELS BOGGED FOUR OR FIVE INCHES INTO THE SOFT WET SOIL AND THE AIRCRAFT NOSED OVER INTO AN INVERTED ATTITUDE AND STOPPED. THE CAUSE OF THE ENGINE FAILURE WAS NOT DETERMINED.

## Aircraft

- Registration: [N48614](https://openairdocs.org/aircraft/N48614), registered now, S/N 86B, built 1976 (OpenAirDocs)
- Reported make and model: GRUMMAN 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: [Pratt & Whitney R-985 series](https://openairdocs.org/engine/pratt-whitney-r-985-series) (registry code 52008, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 86B
- Airframe hours: 4874
- Engines: P&W R-985 450 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Operator: Adams Flying Service
- Registered owner: Adams Flying Service
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, June 2, 1987, 190 hours before
- Departed: HOLLY RIDGE, LA

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 23; commercial; airplane ratings: single-engine land, multi-engine land; medical: class 2, valid medical--no waivers/lim.; seat: front; flight hours: 891 total, 610 in this make and model, 822 as pilot in command, 204 in the last 90 days, 7 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 93 °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 19870812044469A](https://openairdocs.org/incident/19870812044469A), Aug 12, 1987: Scwzer G164B, Oak Grove, LA, Substantial damage. The engine lost power during agricultural spraying. Aircraft nosed over in a muddy field. Cause of failure unknown.

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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