# NTSB MIA90LA176: Grumman 164-A, N9650, Dundee, MS, August 24, 1990

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: August 24, 1990, 14:00 local (19:00 UTC)
- Place: Dundee, MS
- Coordinates: 34.51057, -90.449035 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=34.5106&lon=-90.4490&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report November 9, 1992
- Report: Approved by Office Director
- NTSB case key (mKey): 32696
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA90LA176
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/32696/pdf
- Page: https://openairdocs.org/ntsb/MIA90LA176

## Probable cause

IMPROPER MAINTENANCE REPAIR BY AN UNKNOWN PERSON THAT INITIATED THE ENGINE FAILURE AND THE FORCED LANDING.

## 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
  - fuel system,line fitting - failure,total (contributing factor)
  - maintenance,modification - improper, unknown (cause)
- Forced landing, descent - emergency
- Dragged wing,rotor,pod,float or tail/skid, landing - roll

## Analysis

THE PILOT STATED THAT WHILE EXECUTING AN 'AG TURN ' THE ENGINE FAILED AND HE ATTEMPTED TO LAND IN A BEAN FIELD. DURING THE LANDING ONE WING STRUCK THE GROUND AND THE AIRPLANE GROUND LOOPED. EXAMINATION OF THE ENGINE REVEALED THAT A FUEL LINE FITTING TO THE CARBURETOR HAD FAILED DUE TO AN IMPROPER WELD.

## Aircraft

- Registration: [N9650](https://openairdocs.org/aircraft/N9650), registered now, S/N 1381 (OpenAirDocs)
- Reported make and model: GRUMMAN 164-A
- 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: 1381
- Airframe hours: 1804
- Engines: P&W 1340 600 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Registered owner: Lees Air Serivce, Inc.
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, April 18, 1990, 297 hours before
- Departed: M97, TUNICA, MS

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 62; commercial; airplane ratings: single-engine land; medical: class 2, valid medical--w/ waivers/lim; seat: center; flight hours: 45,000 total, 7,000 in this make and model, 300 in the last 90 days, 100 in the last 30 days, 12 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 110° at 5 knots
- Visibility: 7 statute miles
- Lowest ceiling: none
- Temperature: 84 °F, dew point 61 °F
- Altimeter: 30.00 inHg
- Observed at: MEM, 38 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 19900824040289A](https://openairdocs.org/incident/19900824040289A), Aug 24, 1990: Scwzer G164A, Dundee, MS, Substantial damage. Reported engine failed on swath run a wing had caught in bean field vegatation. Caused cartwheel.

## Other investigations on N9650 (1)

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 FTW95LA361](https://openairdocs.org/ntsb/FTW95LA361), Aug 28, 1995: Grumman G-164A (N9650), Holyoke, CO, substantial damage. Probable cause: the pilot's failure to maintain terrain clearance.

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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