# NTSB FTW92LA144: Grumman G-164B, N6808Q, Mamou, LA, May 30, 1992

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Limited investigation · Final report
- Date: May 30, 1992, 07:30 local (12:30 UTC)
- Place: Mamou, LA
- Coordinates: 30.630811, -92.410224 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=30.6308&lon=-92.4102&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed, report June 30, 1993
- Report: Approved by Office Director
- NTSB case key (mKey): 18506
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW92LA144
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/18506/pdf
- Page: https://openairdocs.org/ntsb/FTW92LA144

## Probable cause

THE ENGINE FAILURE FOR UNDETERMINED REASONS.  A FACTOR WAS THE LACK OF SUITABLE TERRAIN ONTO WHICH THE ENSUING FORCED LANDING COULD BE EXECUTED.

## Sequence of events

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

- Loss of engine power, takeoff - initial climb
  - reason for occurrence undetermined (cause)
- Forced landing, descent - emergency
- On ground/water encounter with terrain/water, landing - flare/touchdown
  - terrain condition - none suitable (contributing factor)
- Nose over, landing - flare/touchdown
  - terrain condition - soft

## Analysis

THE PILOT EXPERIENCED A GRADUAL POWER LOSS SHORTLY AFTER MAKING HIS FIRST POWER REDUCTION AFTER TAKEOFF.  HIS EFFORTS TO ALLEVIATE THE SITUATION WERE UNSUCCESSFUL AND SHORTLY THEREAFTER, THE ENGINE EMITTED BLACK SMOKE FROM THE EXHAUST AND LOST COMPLETE POWER.  THE AIRPLANE HAD NOT CLIMBED ABOVE 100 FEET AGL AND THE ONLY TERRAIN AVAILABLE FOR THE FORCED LANDING WAS RICE FIELDS WHICH WERE WET AND SOFT AND COVERED IN SIX INCHES OF WATER.  THE AIRPLANE NOSED OVER ON TOUCHDOWN.  THE OPERATOR REPORTED THAT THE NEWLY OVERHAULED ENGINE HAD BEEN INSTALLED THE DAY PRIOR TO THE ACCIDENT.

## Aircraft

- Registration: [N6808Q](https://openairdocs.org/aircraft/N6808Q), registered now, S/N 316B, built 1977 (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: [Continental R-975 series](https://openairdocs.org/engine/continental-r-975-series) (registry code 17037, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 316B
- Airframe hours: 5801
- Engines: P&W R-1340 600 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Operator: Central Farmer'S Coop
- Registered owner: Central Farmer'S Coop
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, December 15, 1991, 341 hours before
- Departed: LA25
- Destination: LA25

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 58; airline transport, flight instructor; airplane ratings: single-engine land, single-engine sea, multi-engine land; instrument ratings: airplane; medical: class 2, valid medical--w/ waivers/lim; seat: center; flight hours: 14,814 total, 510 in this make and model, 14,423 as pilot in command, 509 in the last 90 days, 208 in the last 30 days, 1 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 360° at 3 knots
- Visibility: 3 statute miles
- Lowest ceiling: none
- Temperature: 81 °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 19920530017209A](https://openairdocs.org/incident/19920530017209A), May 30, 1992: Scwzer G164B, Mamou, LA, Substantial damage. Lost power on climbout after engine belched black smoke. Nosed over landing in water in muddy rice field.

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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