- Date
- September 15, 2026, 17:00 local (23:00 UTC)
- Place
- Roundup, MT · backcountry landing area
- Injuries
- 1 uninjured
- Damage
- Substantial damage
- Phase of flight
- Landing
- Aircraft
- N4500WPiper PA-18-150
- Defining event
- Landing-landing roll: Nose over/nose down
- Weather
- Visual (VMC) · Day
- Status
- Investigation ongoing
- Investigation class
- Class 4 - Basic report with no Prelim publish
- NTSB office
- Western Pacific Region
- Parties
- FAA
- FAA report
- 20260915012659A
- Case key
- 203854
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
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
- N4500W
- Reported as
- Piper PA-18-150
- Category
- Airplane
- Serial number
- 18-8009019
- Built
- 1980
- Airframe hours
- 4,039
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Airworthiness certificate
- Standard, Normal
- Departed
- 9U1 · Wilsall, MT
- Airport
- NA · Back country Area
- Equipment
- Stall warning system, ADS-B
N4500WRegistered now · Piper PA-18-150Airframe modelPiper PA-18-150Engine modelLycoming 0-320 series
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) · Day
- Wind
- 220° at 16 knots, gusting 20
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 66 °F, dew point 41 °F
- Altimeter
- 30.03 inHg
- Observed at
- K1NM, 20 nm away
- METAR
- METAR K1NM 152155Z AUTO 22016G20KT 10SM CLR 19/05 A3003 RMK AO2 SLP165 T01880053 $
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.
Other investigations on N4500W · 4
Matched to the same aircraft by N-number and date.
NTSB GAA19CA045Accident · No injuriesData collectionFinal reportDenver, COThe pilot's failure to maintain directional control of the airplane during landing in gusting wind conditions.NTSB ANC03LA107Accident · No injuriesLimited investigationFinal reportKoliganek, AKThe pilot's failure to maintain adequate airspeed during an aborted landing, which resulted in an inadvertent stall and subsequent collision with terrain.NTSB ANC97TA045Accident · No injuriesFinal reportNoatak, AKfailure of the pilot to maintain directional control of the airplane, which resulted in an inadvertent ground loop and damage to the airplane. Factors associated with the accident were: the ice/snow covered runway, and the pilot's lack of experience in the…NTSB ANC92T#A12Accident · No injuriesClass 3Final reportAnchorage, AK