Weatherly 620B N90393
30 May 2025 · Lewiston, Montana, United States · No injuries
Summary
On 30 May 2025 at about 01:00 local time, a Weatherly 620B registered N90393 was involved in an accident near Lewiston, Montana, United States. One person was on board and nobody was injured. The aircraft was substantially damaged. The NTSB has published a probable cause for this accident; it is quoted in full below.
The record
- Date
- at 01:00
- Classification
- Accident
- Location
- Lewiston, Montana, United States
- Coordinates
- 47.0000, -109.0000
- Aircraft
- Weatherly 620B
- Registration
- N90393
- Category
- Airplane
- Year built
- 1995
- Engines
- 1
- Operator
- Not recorded
- Operating rule
- Part 137: Agricultural
- Purpose of flight
- Aerial Application
- Phase of flight
- Not recorded
- Aircraft damage
- Substantial
- Weather
- VMC
- Light
- Day
- NTSB number
- WPR25LA165
People
Nobody was injured.
| On board | Died | Serious | Minor | Uninjured |
|---|---|---|---|---|
| 1 | 0 | 0 | 0 | 1 |
Probable cause
The pilot’s failure to maintain clearance from terrain while maneuvering at a low altitude.
Quoted verbatim from the NTSB record. This site does not paraphrase or interpret it.
Read the full NTSB narrative
The pilot reported that during an aerial application flight, he completed one pass over a field and initiated a climb to return for the second pass. As the climb progressed, he realized he did not have sufficient airspeed or altitude to maintain clearance from the approaching terrain. He was eventually able to complete the turn but did not have sufficient airspeed or altitude to avoid terrain and the airplane struck the ground. The airplane sustained substantial damage to both wings and the lower fuselage. The pilot reported no preimpact mechanical malfunctions or failures with the airframe or engine that would have precluded normal operation.
Quoted verbatim from the NTSB record.
Other Weatherly 620 accidents
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 23 Jul 2025 | Weatherly 620B | Rushmore, Minnesota, United States | - | Minor injuries | - |
| 25 Jul 2022 | Weatherly 620A | Stewart, Minnesota, United States | Classic Aero Crop Protection Inc. | No injuries | - |
| 17 May 2021 | Weatherly 620B | Guaviyu, Uruguay | Aero Soluciones | No injuries | - |
| 17 Oct 2019 | Weatherly 620 | Fabens, Texas, United States | Roger J. Zeledon Dba | No injuries | - |
| 2 Sep 2019 | Weatherly 620 | Russellville, Alabama, United States | - | Fatal | 1 |
| 10 Apr 2017 | Weatherly 620B | Lewistown, Montana, United States | Skyline Aviation LLC | No injuries | - |
Other accidents in this area
| Date | Aircraft | Location | Operator | Outcome | Died |
|---|---|---|---|---|---|
| 29 Jun 2025 | Piper PA-24-260 | West Yellowstone, Montana, United States | MJC Limited LLC | No injuries | - |
| 6 Jan 2025 | Piper PA-18-150 | Red Rock, Montana, United States | State of Montana | No injuries | - |
| 9 Dec 2025 | Maule M-5-210C | Eureka, Montana, United States | - | No injuries | - |
| 26 Aug 2025 | Bell Textron Canada 407 | Lincoln, Montana, United States | Life Flight Network | No injuries | - |
| 18 Jul 2025 | Piper PA-28-180 | West Yellowstone, Montana, United States | - | Fatal | 3 |
| 16 Mar 2025 | Beechcraft C90A | Helena, Montana, United States | Bank of Utah Trustee | No injuries | - |