# NTSB FTW88DRD11: Schweizer G-164B, N48585, Cheneyville, LA, June 29, 1988

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Final report
- Date: June 29, 1988, 16:18 local (21:18 UTC)
- Place: Cheneyville, LA
- Coordinates: 31.010919, -92.280044 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=31.0109&lon=-92.2800&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed, report August 8, 1989
- Report: Approved by Office Director
- NTSB case key (mKey): 22495
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=FTW88DRD11
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/22495/pdf
- Page: https://openairdocs.org/ntsb/FTW88DRD11

## Sequence of events

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

- Loss of engine power(partial) - nonmechanical, cruise
  - fuel system,carburetor - ice (cause)
  - carburetor heat - not used, pilot in command (cause)
- Forced landing, descent - emergency
- On ground/water collision with object, landing - roll
  - terrain condition - pole (contributing factor)

## Analysis

THE AG AIRPLANE WAS RETURNING AFTER SPRAYING CHEMICAL WHEN THE ENGINE STARTED TO LOSE POWER. DURING THE FORCED LANDING ON A HIGHWAY THE LEFT WING STRUCK A ROAD SIGN. NO MECHANICAL REASON FOR THE ENGINE POWER LOSS WAS FOUND. THE ACFT HAD AN ANNUAL INSPECTION 225 HOURS PRIOR TO THE ACC. TOTAL ACFT TIME WAS 4974 HOURS. THE ENG HAD ACCUM 653 HOURS SINCE A MAJOR OVERHAUL. THE DATE OF THE LAST ANNUAL WAS 3/1/88. POST ACC EXTERNAL INSPECTION OF THE ENG SHOWED ADEQUATE FUEL TO THE CARBURETOR AND ADEQUATE OIL SUPPLY. THE PLT SAID THE POWER LOSS WAS PARTIAL BUT HE COULD NOT MAINTAIN ALT. DURING THE LANDING ON A 4 LANE DIVIDED HIWAY THE ACFT STRUCK A SIGN AND SKIDDED SIDEWAYS ABOUT 50 FT BEFORE STOPPING. THE RT LNDG GEAR SHEARED OFF BUT THE ACFT REMAINED UPRIGHT.

## Aircraft

- Registration: [N48585](https://openairdocs.org/deregistered/N48585-2012-12-18), registration cancelled 2012-12-18, S/N 59B, built 1976 (OpenAirDocs)
- Reported make and model: SCHWEIZER 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: 59B
- Airframe hours: 4974
- Engines: P&W R-1340-AN1 600 horsepower reciprocating
- Damage: Destroyed
- Flight: Aerial application, Part 137
- Registered owner: Lyles Flying Service, Inc.
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, March 1, 1988, 225 hours before

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 51; commercial; airplane ratings: multi-engine land, single-engine land; instrument ratings: airplane; medical: unknown, valid medical--no waivers/lim.; seat: center; flight hours: 15,000 total, 8,000 in this make and model, 15,000 as pilot in command, 120 in the last 90 days, 70 in the last 30 days, 9 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 190° at 8 knots
- Visibility: 8 statute miles
- Lowest ceiling: none
- Temperature: 97 °F, dew point 73 °F
- Altimeter: 29.00 inHg
- Observed at: ESF, 25 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 19880629024229A](https://openairdocs.org/incident/19880629024229A), Jun 29, 1988: Scwzer G164B, Cheneyville, LA, Substantial damage. Engine lost partial power during return to base from an ag operation. Wing struck a road sign landing on a highway.

## Other investigations on N48585 (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 FTW86LRD15](https://openairdocs.org/ntsb/FTW86LRD15), Jun 24, 1986: Grumman G-164B (N48585), Church Point, LA, substantial damage
- [NTSB FTW80DRD29](https://openairdocs.org/ntsb/FTW80DRD29), May 2, 1980: Grumman G-164B (N48585), Church Point, LA, 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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