Piper PA-18 accident near Watertown, South Dakota, August 17, 1982
On August 17, 1982 at about 11:05 pm local time, a Piper PA-18, registered N154T, was destroyed in an accident near Watertown, South Dakota. It was an aerial application (crop spraying) flight under agricultural flying rules (Part 137). 1 person was killed. The weather was visual conditions (good weather).
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The NTSB's probable cause their words, unchanged
The NTSB has not yet published a probable cause for this accident. Investigations usually take one to two years; this page updates when the final report is released.
Source: NTSB aviation accident database, copy made October 4, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- August 17, 1982 · about 11:05 pm local time
- Place
- Watertown, South Dakota · map
- Type
- Accident
- Injuries
- 1 person was killed.
- Weather
- visual conditions (good weather)
- Aircraft
- Piper PA-18 · all PA-18s on the register
- Registration
- N154T · registry record · serial 18-2268
- Damage
- Destroyed
- Flight
- Aerial application (crop spraying) flight · agricultural flying rules (Part 137)
The NTSB's narrative final · quoted from the NTSB record
THE PILOT WAS SPRAYING A SUNFLOWER FIELD NEXT TO AN ALFALFA FIELD THAT WAS BEING IRRIGATED. AS HE PULLED UP FROM HIS THIRD SWATH RUN, HE BEGAN A PROCEDURE TURN-AROUND OVER THE ALFALFA FIELD. DURING THE TURN, THE PLANE ROLLED TO AN INVERTED ATTITUDE, THEN PITCHED DOWN AND CRASHED. AN INVESTIGATION REVEALED THAT THE TURN WAS MADE DOWNWIND FROM THE IRRIGATION SPRINKLERS. THE HUMIDITY IN THE VICINITY OF THE TURN WAS ESTIMATED TO BE ABOUT 80%, WHEREAS THE HUMIDITY OVER THE SUNFLOWER FIELD WAS ESTIMATED TO BE ABOUT 40%. THE ELEVATION OF THE CRASH SITE WAS 1860 FT AND THE TEMPERATURE AND ALTIMETER SETTING WERE ABOUT 85 DEG AND 30.12, RESPECTIVELY. AN EXAMINATION OF THE WRECKAGE REVEALED NO PREIMPACT FAILURES.
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: commercial pilot
- Ratings: single-engine land
- Flight time: 705 hours in all; 240 in this make and model; 125 in the last 90 days
- Medical certificate: Class 2 (valid medical--no waivers/lim.)
- Seat: unk
The aircraft
- Airframe total time: 4,420 hours
- Last inspection: inspection type not recorded; 207 hours since
- Maximum gross weight: 1,500 lb
- Seats: 2
- Landing gear: fixed
- Engine: Lycoming O-320 (piston); 0 hours total
The flight
- Departed from: Watertown SD at 5:40 pm
- Destination: Watertown SD
- Flight plan: none
- Runway 0
Weather at the time
- Light: daylight
- Wind: from 160° at 9 knots
- Visibility: 6 statute miles
- Sky: not recorded; scat at 25,000 ft
- Temperature: 185°F (85°C), dew point 0°F (-18°C)
- Altimeter: 30.00 inHg
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 N154T the same tail number, which may have belonged to a different aircraft at the time
About this page
Everything above comes from the NTSB's public accident database: the narrative, probable cause and findings are the NTSB's own words, and the coded tables behind its report (pilot, aircraft, flight, weather, injuries, sequence of events) are written out in plain English. Pilots' ages, home towns and medical details are left out on purpose. The documents and photographs are the NTSB's docket, the folder of records gathered during the investigation, shown as the NTSB released them (the NTSB redacts some personal details first) and listed under the NTSB's own titles. This site's own text never names pilots, passengers or anyone else involved. A preliminary report describes what is known soon after the event and can change; the final report, with the probable cause, usually follows one to two years later and this page is refreshed when it does. Case number DEN82FTK06.