WPR25FA214

NTSB accident investigation · Piper PA-28-180 · West Yellowstone, MT · July 18, 2025

Accident · FatalClass 3 · FieldPreliminary report
Date
July 17, 2025, 23:58 local (Jul 18, 2025, 05:58 UTC)
Place
West Yellowstone, MT · rural wooded area
Injuries
3 fatal
Damage
Substantial damage
Phase of flight
Unknown
Aircraft
N7186WPiper PA-28-180
Defining event
Unknown: Ground collision
Weather
Visual (VMC) · Night/dark
Status
Investigation ongoing
Investigation class
Class 3
NTSB office
Western Pacific Region
Parties
Lycoming Engines, Federal Aviation Adminstration, Piper Aircraft
FAA report
20250717008489A
Case key
200571

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

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Preliminary report

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

On July 17, 2025, about 2358 mountain daylight time, a Piper PA-28-180, N7186W, was substantially damaged when it was involved in an accident near West Yellowstone, Montana. The pilot and two pilot rated passengers were fatally injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. The pilot and two pilot rated passengers had planned to complete a series of flights together, while two of the three pilots were building night, cross country flight time. According to preliminary ADS-B data provided by the Federal Aviation Administration (FAA), the airplane landed on runway 01 at Yellowstone Airport (WYS), West Yellowstone, Montana, at 2246, and departed from runway 19 at 2353. Once airborne, the airplane’s flightpath drifted left of the runway centerline, then remained on a parallel course to the runway’s extended centerline. About 3 miles southwest of WYS, the airplane initiated a left turn to the south. About 45 seconds later, the airplane turned left to a southeasterly heading. About 28 seconds later, a right turn was initiated and continued until the end of the flight track data. No altitude information was recorded within the ADS-B data. According to the pilot of another airplane that landed at WYS near the time of the accident, he was inbound on an instrument flight plan and had been cleared to fly the ILS approach to runway 01 at WYS. When he was about 10 miles from WYS, he transmitted on the WYS common traffic advisory frequency (CTAF), his position and intention to fly a straight in approach to runway 01. As he completed his radio transmission, he heard a transmission from what he felt was the pilot of the accident airplane, however, it did not offer a clear description of its position. The pilot of the approaching airplane transmitted a second time and asked for position clarification from the accident pilot, who subsequently responded, “…I’m trying to get to…(garbled).” The approaching airplane’s pilot then saw aircraft lights in the distance below his airplane that were moving toward the southeast. The pilot of the approaching airplane transmitted a third time, “Are you on a left crosswind?” No further radio transmissions from the accident pilot were heard and the approaching airplane landed without further interaction with the accident pilot. The approaching airplane’s pilot stated that at the time he flew the instrument approach into WYS, it was “very dark” and there was no landscape illumination from the moon or ground lights, other than the runway lights. On July 18, 2025, at 1121, an Alert Notice (ALNOT) was issued following reports from family members, that the pilots could not be reached by phone, and confirmation from the airplane’s rental management company, that the airplane had not returned to its home airport. The wreckage was subsequently located by the Montana Department of Transportation Aeronautics Division, about 5.5 miles southeast of WYS, 410 ft west of the last ADS-Bdata point, at an elevation of about 7,580 ft msl. Examination of the accident site revealed that the airplane impacted wooded terrain near the top of a geographical plateau. The debris field was about 200 ft in length, from the first identified point of contact (FIPC), and was oriented on a magnetic heading of 266°. The main wreckage was located about 160 ft from the FIPC. A portion of the main wreckage came to rest in a nose low attitude, and a portion came to rest inverted. The inverted portion of the main wreckage was oriented on a magnetic heading of 299°. All major components of the airframe, flight controls, engine and propeller assembly were observed throughout the debris field. The wreckage was recovered to a secure facility 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
N7186W
Reported as
Piper PA-28-180
Category
Airplane
Serial number
28-997
Built
1962
Damage
Substantial damage
Flight
Personal · Part 91
Departed
WYS · West Yellowstone, MT
Airport
WYS

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
210° at 4 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
55 °F, dew point 41 °F
Altimeter
30.09 inHg
Observed at
KWYS, 5 nm away
METAR
KWYS 180555Z AUTO 21004KT 10SM CLR 13/05 A3009 RMK A01

FAA reports on this event · 1

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