Mooney M20E accident near Longmont, Colorado, August 4, 2026
On August 4, 2026 at about 2:35 pm local time, a 1967 Mooney M20E, registered N3264F, was substantially damaged in an accident during initial climb near Longmont, Colorado (Vance Brand airport). It was a personal flight under general aviation rules (Part 91). No one was hurt; 2 people were on board or involved. 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 4, 2026 · about 2:35 pm local time
- Place
- Longmont, Colorado · Vance Brand · map
- Type
- Accident
- Injuries
- No one was hurt; 2 people were on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Mooney M20E, built 1967 · all M20Es on the register
- Registration
- N3264F · registry record · serial 670057
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The factual record from the NTSB's investigation tables, in plain English
What happened, in order
- Loss of engine power (partial) during initial climb defining event
The aircraft
- Airframe total time: 3,491.3 hours
- Last inspection: annual inspection, August 2, 2026
- Maximum gross weight: 2,575 lb
- Seats: 4
- Landing gear: retractable
The flight
- Departed from: KLMO Longmont CO at 2:30 pm
- Destination: KLMO Longmont CO
- Flight plan: none
- Runway 11/2, 4,799 ft by 75 ft
- A second pilot was aboard
Weather at the time
- Light: daylight
- Wind: from 050° at 5 knots
- Visibility: 10 statute miles
- Sky: overcast at 4,400 ft
- Temperature: 55°F (13°C), dew point 41°F (5°C)
- Altimeter: 30.27 inHg
- Observation at 9:00 am from KLMO, 1 miles away
Weather report (METAR): METAR KLMO 041455Z AUTO 05005KT 10SM OVC044 13/05 A3027 RMK AO2 T01330052
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Flight crew | 2 |
Documents from the investigation the NTSB's docket: the evidence folder behind the report
The NTSB has not released the docket for this case yet. The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), is usually released when the investigation is nearly complete, and the list here is refreshed when it appears. Check at the NTSB.
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 CEN26LA281.