Schweizer G-164B accident near Harviell, Missouri, July 18, 1994
On July 18, 1994 at about 11:20 pm local time, a Schweizer G-164B, registered N48484, was substantially damaged in an accident near Harviell, Missouri (Private Airstrip airport). It was an aerial application (crop spraying) flight under agricultural flying rules (Part 137). 1 person had minor injuries. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
the separation of the oil supply line to the propeller governor, which resulted in the propeller inadvertently going into feather. Factors were the pilots intentional ground loop of the airplane to avoid impacting obstructions at the end of the runway.
Source: NTSB aviation accident database, copy made October 5, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- July 18, 1994 · about 11:20 pm local time
- Place
- Harviell, Missouri · Private Airstrip · map
- Type
- Accident
- Injuries
- 1 person had minor injuries.
- Weather
- visual conditions (good weather)
- Aircraft
- Schweizer G-164B
- Registration
- N48484 · registry record · serial 43B
- Damage
- Substantial damage
- Flight
- Aerial application (crop spraying) flight · agricultural flying rules (Part 137)
The NTSB's narrative final · quoted from the NTSB record
THE PILOT REPORTED THAT DURING THE TAKEOFF ROLL ON THE 35TH AND LAST FLIGHT OF THE DAY, RPM ON THE TURBOPROP ENGINE WAS OBSERVED IN THE LOW GOVERNING RANGE, INCAPABLE OF TAKEOFF THRUST. HE SELECTED REVERSE THRUST WITH NO RESULT, AND INTENTIONALLY GROUND LOOPED THE AIRPLANE TO AVOID IMPACT WITH OBSTRUCTIONS. THE PILOT REPORTED THE OIL SUPPLY LINE TO THE PROPELLER GOVERNOR HAD BECOME DISCONNECTED. DISASSEMBLY AND TESTING OF THE ENGINE, FUEL CONTROL AND GOVERNOR FAILED TO REVEAL ANY OTHER DISCREPANCIES.
The complete narrative as the NTSB published it. The NTSB's docket holds the report as a PDF and any photographs, statements and other documents from the investigation.
The factual record from the NTSB's investigation tables, in plain English
Pilot
- Certificate: airline transport pilot, flight instructor
- Ratings: multi-engine land; single-engine land; instructor: airplane multi-engine; instructor: airplane single-engine; instructor: instrument airplane; instrument: airplane
- Flight time: 40,000 hours in all; 20,000 in this make and model
- Medical certificate: Class 2 (valid medical--w/ waivers/lim.)
- Seat: ctr
The aircraft
- Last inspection: annual inspection, May 1, 1994; 214 hours since
- Seats: 1
- Landing gear: fixed
- Engine: Garrett TPE-331-1 (turboprop); 0 hours total
- Operator: Rh And Rh, INC.
The flight
- Flight plan: none
- Runway 18, 2,500 ft by 40 ft
Weather at the time
- Light: daylight
- Wind: from 230° at 5 knots
- Visibility: 10 statute miles
- Sky: clear
- Temperature: 82°F (28°C), dew point 0°F (-18°C)
- Observation at 11:00 pm from NON
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Crew | 1 |
Documents from the investigation the NTSB's docket: the evidence folder behind the report
The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), has not been read from the NTSB for this case yet; the list appears here once it has. Open the docket at the NTSB.
Other NTSB records under N48484 the same tail number, which may have belonged to a different aircraft at the time
Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.