# NTSB ATL85LKG08: Schweizer AG CAT, N3629K, Samson, AL, July 26, 1985

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Final report
- Date: July 26, 1985, 17:00 local (22:00 UTC)
- Place: Samson, AL
- Coordinates: 31.110025, -86.03981 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=31.1100&lon=-86.0398&mi=10
- Phase of flight: [Maneuvering](https://openairdocs.org/ntsb-phases/450) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- NTSB case key (mKey): 6883
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ATL85LKG08
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/6883/pdf
- Page: https://openairdocs.org/ntsb/ATL85LKG08

## Sequence of events

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

- Loss of engine power(total) - nonmechanical, maneuvering - aerial application
  - weather condition - carburetor icing conditions (contributing factor)
  - carburetor heat - improper use of, pilot in command (cause)
  - load jettison - performed, pilot in command (cause)
- Forced landing, descent - emergency
- Loss of control - in flight, landing - roll
  - directional control - not possible, pilot in command (cause)
  - ground loop/swerve - uncontrolled, pilot in command (cause)

## Analysis

THE ACFT WAS DAMAGED IN A FORCED LNDG AFTER A PWR LOSS DURING A SWATH RUN. DURING THE LDG A PWR LINE WAS STRUCK AND THE ACFT WAS PULLED SIDEWAYS WHICH CAUSED A GROUNDLOOP AND RESULTED IN DAMAGES. LYON FLYING SERVICES OF WELSH LA DISMANTLED THE ENG & FOUND NO REASON FOR ENG STOPPAGE OR POWER LOSS. THE TEMPERATURE & DEW POINT WERE CONDUCIVE TO CARB ICING.

## Aircraft

- Registration: [N3629K](https://openairdocs.org/aircraft/N3629K), registered now, S/N 748B, built 1984 (OpenAirDocs)
- Reported make and model: SCHWEIZER AG CAT
- Registry model: [Grumman American Avn. G-164B](https://openairdocs.org/model/grumman-american-avn-g-164b) (registry code 3960204) (OpenAirDocs)
- Registry engine: [AiResearch TPE331 series](https://openairdocs.org/engine/airesearch-tpe331-series) (registry code 01517, turbo-prop) (OpenAirDocs)
- Category: Airplane
- Serial number: 748B
- Airframe hours: 375
- Engines: P&W R1340 600 horsepower reciprocating
- Damage: Substantial damage
- Flight: Aerial application, Part 137
- Registered owner: Jerry L. Wise
- Airworthiness certificate: Special, Restricted (Special)
- Last inspection: Annual, February 16, 1985, 73 hours before
- Departed: 0J7, SAMSON, AL

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 29; commercial; airplane ratings: single-engine land; medical: class 1, valid medical--w/ waivers/lim; seat: front; flight hours: 2,903 total, 675 in this make and model, 2,863 as pilot in command, 119 in the last 90 days, 118 in the last 30 days, 12 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 190° at 8 knots
- Visibility: 7 statute miles
- Lowest ceiling: 6,000 ft broken
- Temperature: 82 °F, dew point 73 °F
- Altimeter: 30.00 inHg
- Observed at: DHN, 40 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 19850726034299A](https://openairdocs.org/incident/19850726034299A), Jul 26, 1985: Scwzer G164B, Samson, AL, Substantial damage. During swath run engine ran rough and quit. Struck powerline during landing. Mechanical malfunction undetermined.

## Other investigations on N3629K (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 DFW05CA133](https://openairdocs.org/ntsb/DFW05CA133), May 24, 2005: Grumman 164-B (N3629K), Fontaine, AR, substantial damage. Probable cause: The pilot's failure to maintain clearance during a downwind takeoff with a full load of fertilizer. Factor contributing to the accident were the prevailing tailwind and the high density altitude.

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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