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WPR25LA165 · Weatherly Aviation Co Inc 620B

29 May 2025 · Lewiston, MT, United States Narrative disagrees

Weatherly Aviation Co Inc 620B · Accident: low altitude operation/event while maneuvering

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Narrative check · The NTSB narrative appears to contradict this record's location. Values are shown as recorded, not corrected; compare with the narrative.

Event

NTSB case
WPR25LA165
Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
Accident
InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
Completed
Event fatalities
Unknown
Ground fatalities
Unknown
OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
General aviation
WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
Visual Meteorological Cond

Weatherly Aviation Co Inc 620B

Aircraft type
Weatherly 620
Category
Airplane
RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
N90393
Operator
Unknown
Onboard fatalities
Unknown
Route
From not recordedTo not recorded
Aircraft age
About 30 years (built 1995)
Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
Part 137: Agricultural
Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
Maneuvering · low-altitude flying
Defining eventThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
Low altitude operation/event
DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
Substantial

Cause areas

  • Aircraft › Aircraft oper/perf/capability
  • Personnel issues › Psychological

Approximate · Coordinates from the NTSB case API, which marks them as estimated or does not say; no uncertainty radius is established.

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.

Probable cause

The pilot’s failure to maintain clearance from terrain while maneuvering at a low altitude.

Verbatim NTSB analysis and probable cause from the NTSB dataset

Sources

NTSB record WPR25LA165
Event ID
20250602200245
Case number
WPR25LA165
Dataset
full-current
Source SHA-256
5cf380f0061817c0331a6b2d8cc7e0ee3a79bea469a1001dc5c10e56f35f5ab3
Source notes (4)
  • Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
  • Filled from the NTSB case API where the bulk record had no value: local date, investigation status, coordinates, cause areas. Values present in the bulk record are kept.
  • The date is the local date; the NTSB stores the UTC date 2025-05-30.
  • API snapshot SHA-256: 0ebb6609adb13683ceb7af812b62e6d35a22c76968fcaecc9c2807756909fb61; retrieved 2026-09-16T19:55:41.139Z.