Piper Aircraft INC PA 46-350P accident near Sioux City, Iowa, January 24, 2026
On January 24, 2026 at about 1:12 pm local time, a 2014 Piper Aircraft INC PA 46-350P, registered N91MK, was substantially damaged in an accident during takeoff near Sioux City, Iowa. 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
- January 24, 2026 · about 1:12 pm local time
- Place
- Sioux City, Iowa · map
- Type
- Accident
- Injuries
- No one was hurt; 2 people were on board or involved.
- Weather
- visual conditions (good weather)
- Aircraft
- Piper Aircraft INC PA 46-350P, built 2014
- Registration
- N91MK · registry record · serial 4636647
- Damage
- Substantial damage
- Flight
- Personal flight · general aviation rules (Part 91)
The NTSB's narrative preliminary · quoted from the NTSB record
On January 24, 2026, about 0712 central daylight time, a Piper PA-46-350P airplane, N91MK, was substantially damaged when it was involved in an accident near Sioux City, Iowa. The pilot and passenger were uninjured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. The pilot reported that after the initial climb and immediately after leveling off at 2,500 ft mean sea level, he felt the airplane make two “thugs” and observed the manifold pressure fluctuate. He subsequently observed a drop in engine oil pressure. He stated that he told the Air Traffic Control tower controller that he was going to turn back toward the airport. Once the airplane was on a north heading, a loud “boom” was heard, and a subsequent loss of engine power occurred. The pilot executed a forced landing to a field. During the forced landing, the airplane’s engine and left wing impacted terrain and were separated. The forward fuselage and right wing sustained substantial damage. The pilot stated that on a previous flight, four days before the accident flight, a similar “thug” was observed, but it did not result in any other abnormal indications. The wreckage was retained for further examination.
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
- Loss of engine power (partial) during takeoff defining event
The aircraft
- Seats: 6
- Landing gear: fixed
- Operator: Mulaii LLC
Weather at the time
- Light: night, dark
- Wind: from 140° at 3 knots
- Visibility: 10 statute miles
- Sky: clear
- Temperature: -6°F (-21°C), dew point -17°F (-27°C)
- Altimeter: 30.61 inHg
- Observation at 6:52 am from KSUX, 1 miles away
Weather report (METAR): METAR KSUX 241252Z 14003KT 10SM CLR M21/M27 A3061 RMK AO2 SLP398 T12061267=
Injuries
| Fatal | Serious | Minor | None | |
|---|---|---|---|---|
| Flig | 1 | |||
| Passengers | 1 |
Other NTSB records under N91MK the same tail number, which may have belonged to a different aircraft at the time
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 docket at the NTSB holds the report as a PDF and the investigation's photographs and documents. This site 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 CEN26LA100.