CEN26LA100

NTSB accident investigation · Piper PA 46-350P · Sioux City, IA · January 24, 2026

Accident · No injuriesClass 3 · LimitedPreliminary report
Date
January 24, 2026, 07:12 local (13:12 UTC)
Place
Sioux City, IA
Injuries
2 uninjured
Damage
Substantial damage
Phase of flight
Takeoff
Aircraft
N91MKPiper PA 46-350P
Defining event
Takeoff: Loss of engine power (partial)
Weather
Visual (VMC) · Night/dark
Status
Investigation ongoing
Investigation class
Class 3
NTSB office
Central Region
Parties
FAA
FAA report
20260124000639A
Case key
202341

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

On this page

Preliminary report

What NTSB knew early in the investigation. It may change in the final report.

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.

Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event is the one that best describes the accident. Under each, the cases with the same event anywhere in their sequence.

Aircraft

Registration
N91MK
Reported as
Piper PA 46-350P
Category
Airplane
Serial number
4636647
Built
2014
Damage
Substantial damage
Flight
Personal · Part 91
Operator
Mulaii LLC
Registered owner
Mulaii LLC
Destination
Same as departure
Airport
KSUX

Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.

Weather

Conditions
Visual (VMC) · Night/dark
Wind
140° at 3 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
-6 °F, dew point -17 °F
Altimeter
30.61 inHg
Observed at
KSUX, 1 nm away
METAR
METAR KSUX 241252Z 14003KT 10SM CLR M21/M27 A3061 RMK AO2 SLP398 T12061267=

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.