Ayres Corporation S2R-T65 accident near Wyman / Washington, Iowa, July 21, 2022
On July 21, 2022 at about 11:15 am local time, a 1990 Ayres Corporation S2R-T65, registered N9899, was substantially damaged in an accident during maneuvering (low-alt flying) near Wyman / Washington, Iowa (Washington Muni airport). It was an aerial application (crop spraying) flight under agricultural flying rules (Part 137). No one was hurt; 1 person was on board or involved. The weather was visual conditions (good weather).
The NTSB's probable cause their words, unchanged
The pilot not maintaining sufficient altitude to clear an obstruction during the aerial application flight.
Source: NTSB aviation accident database, copy made November 2, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- July 21, 2022 · about 11:15 am local time · cases in 2022
- Place
- Wyman / Washington, Iowa · Washington Muni · cases near this airport · map
- Type
- Accident
- Injuries
- No one was hurt; 1 person was on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Ayres Corporation S2R-T65, built 1990 · all S2R-T65s on the register
- Registration
- N9899 · registry record · serial T65010DC
- 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 while conducting agricultural spraying operations he first circled the field to be sprayed and noted a windmill at the south end of the field. He started to spray the field and when conducting a spray pass lined up with the windmill, he pulled up to clear the windmill, but encountered a “pocket of dead air” which resulted in the airplane hitting the windmill. The pilot returned to the airport and upon landing the airplane’s left main landing gear collapsed and the airplane went off the side of the runway. The airplane sustained substantial damage to its fuselage. The pilot reported that there were no mechanical malfunctions or failures of the airplane before the accident.
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
What happened, in order
- Collision with terrain or object (not controlled flight into terrain) during maneuvering (low-alt flying) defining event
The NTSB's findings
- Aircraft › Aircraft oper/perf/capability › Performance/control parameters › Altitude › Not attained/maintained
- Personnel issues › Task performance › Use of equip/info › Aircraft control › Pilot
- Environmental issues › Physical environment › Object/animal/substance › Tower/antenna (incl guy wires) › Effect on equipment
Pilot
- Certificate: commercial pilot
- Ratings: single-engine land
- Flight time: 4,300 hours in all; 25 in this make and model; 105 in the last 90 days; 72 in the last 30 days; 4,300 as pilot in command
- Last flight review: March 12, 2021
- Medical certificate: Class 2 (without waivers/limitations)
- Seat: sngl
- Injury: no injuries
The aircraft
- Last inspection: annual inspection
- Seats: 2
- Landing gear: fixed
- Engine: Pratt & Whitney PT6-65 (turboshaft); 0 hours total
Weather at the time
- Light: daylight
- Wind: from 270° at 7 knots
- Visibility: 8 statute miles
- Sky: clear
- Temperature: 66°F (19°C), dew point 64°F (18°C)
- Altimeter: 29.83 inHg
- Observation at 5:55 am from KAWG, 2 miles away
Weather report (METAR): METAR KAWG 211055Z AUTO 27007KT 8SM CLR 19/18 A2983 RMK AO2=
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Flight crew | 1 |
Photographs from the investigation 2 pictures from the NTSB's docket, as the NTSB released them
Photo 1 – Underside of fuselage (FAA Photo)
Photo 2 – View of engine compartment and firewall (FAA Photo)The NTSB's photographs with the NTSB's captions, at screen size. Open a picture to see it full size or to report one that should not be shown.
Documents from the investigation the NTSB's docket: the evidence folder behind the report
2 documents, released by the NTSB on September 22, 2022. View them here, or download them; the NTSB redacts some personal details before release, and this site shows the NTSB's own titles rather than its file names.
| # | Document | What it is | |
|---|---|---|---|
| 1 | Pilot/operator Aircraft Accident Report, NTSB Form 6120.1 | PDF, 7 pages | View Download |
| 2 | Accident Photos | PDF, 2 pages · our copy | View Download |
The same docket at the NTSB · documents without a copy here are fetched from the NTSB when you open them.
Connections how this case links to the rest of the register
- N9899 on the register today · the tail number may have moved to another aircraft since
- Ayres Corporation S-2 244 registered today · the model family and its accident history
- Ayres Corporation 244 aircraft on the register
- Engine: Pratt & Whitney PT6-65 12 aircraft carry this series today · as the NTSB recorded it
- Washington Municipal · nearest airport
- Accidents and incidents in Iowa 871 since 1982 · 131 in the last ten years
- Iowa 4,514 aircraft registered
The whole map of how records connect · these connections as data: /graph/accident/CEN22LA371.json.
The bigger picture in Aviation Analytics: accidents over time since 1982, by model, by phase of flight and conditions, by place and on the map.
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 does not name anyone involved, its policy at this time. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.