Pilatus PC-12/45 accident near Sleetmute, Alaska, March 8, 2025
On March 8, 2025 at about 2:40 am local time, a 2000 Pilatus PC-12/45, registered N304PT, was substantially damaged in an accident during enroute near Sleetmute, Alaska (Sleetmute airport). It was a business flight under charter and air-taxi rules (Part 135). No one was hurt; 10 people were on board or involved. The weather was instrument conditions (cloud, fog or low visibility).
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 12, 2026. Docket and reports at the NTSB.
What the record shows
- Date
- March 8, 2025 · about 2:40 am local time · cases in 2025
- Place
- Sleetmute, Alaska · Sleetmute · cases near this airport · map
- Type
- Accident
- Injuries
- No one was hurt; 10 people were on board or involved.
- Weather
- instrument conditions (cloud, fog or low visibility)
- Aircraft
- Pilatus PC-12/45, built 2000 · all PC-12/45s on the register
- Registration
- N304PT · registry record · serial 304
- Damage
- Substantial damage
- Flight
- Business flight · charter and air-taxi rules (Part 135)
The NTSB's narrative preliminary · quoted from the NTSB record
On March 7, 2025, about 1740 Alaska standard time, a Pilatus PC-12 airplane, N304PT, sustained substantial damage when it was involved in an accident near Sleetmute, Alaska. The pilot and nine passengers were not injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 135 on demand charter flight. The airplane had departed the Scammon Bay Airport (PACM) at 1635 with nine passengers onboard on an instrument flight rules (IFR) flight plan, en route to the Ted Stevens International Airport (PANC), Anchorage, Alaska. After departure the airplane climbed to 27,000 ft and about 1 hour and 23 minutes into the flight the pilot observed and heard the left side of the windscreen crack. The pilot immediately reduced power and began a gradual descent. About a minute later, as the airplane passed through 24,000 ft, the left side windscreen blew completely out of the airplane. See Figure 1 Figure 1. N304PT depicting missing left side windscreen (Photo provided by operator) The pilot diverted to the Sleetmute Airport (PASL) and landed without incident. An examination of the window frame is pending.
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
- Part(s) separation from AC during enroute defining event
The aircraft
- Seats: 12
- Landing gear: fixed
- Operator: Trygg Holdings, LLC
The flight
- Departed from: PACM Scammon Bay Airport AK at 1:35 am
- Destination: PANC Anchorage AK
- Flight plan: IFR
Weather at the time
- Light: daylight
- Visibility: 10 statute miles
- Sky: overcast at 6,000 ft
- Temperature: 34°F (1°C), dew point 25°F (-4°C)
- Altimeter: 29.56 inHg
- Observation at 4:56 pm from PANI, 68 miles away
Weather report (METAR): PANI 080156Z AUTO VRB05KT 10SM OVC060 01/M04 A2956 RMK AO2 SLP013 T00061039 FZRANO $
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Flight crew | 1 | |||
| Passengers | 9 |
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.
Connections how this case links to the rest of the register
- N304PT on the register today · the tail number may have moved to another aircraft since
- Pilatus PC-12 1,445 registered today · the model family and its accident history
- Pilatus 403 aircraft on the register
- Sleetmute Airport · nearest airport
- Scammon Bay Airport · departed from
- Ted Stevens Anchorage International · bound for
- Accidents and incidents in Alaska 5,930 since 1982 · 826 in the last ten years
- Alaska 9,143 aircraft registered
The whole map of how records connect · these connections as data: /graph/accident/ANC25LA027.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.