# NTSB WPR25LA301: Piper PA-24-260, N9366P, West Yellowstone, MT, June 29, 2025

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Class 3 · Limited · Preliminary report
- Date: June 29, 2025, 10:33 local (16:33 UTC)
- Place: West Yellowstone, MT
- Coordinates: 44.68899, -111.11716 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=44.6890&lon=-111.1172&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Defining event: [Landing-landing roll: Landing gear collapse](https://openairdocs.org/ntsb-events/094)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Investigation ongoing
- Investigation class: Class 3
- NTSB office: Western Pacific Region
- Parties: FAA
- NTSB case key (mKey): 201765
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR25LA301
- NTSB preliminary report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/201765/pdf
- Page: https://openairdocs.org/ntsb/WPR25LA301

## Preliminary report

On June 29, 2025, at 1033 mountain daylight time, a Piper PA-24-260, N9366P, was substantially damaged when it was involved in an accident near West Yellowstone, Montana. The pilot was not injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. The pilot reported that he was on a cross-country flight when he experienced a total electrical failure about 100 miles from his destination. He elected to continue to his destination, and, during approach to landing, he lowered the landing gear. During the landing roll on runway 1, the landing gear collapsed, and the airplane slid to a stop on the runway. The fuselage was substantially damaged. The airplane was retained for examination.

## Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event best describes what happened.

- [Enroute-cruise: Electrical system malf/failure](https://openairdocs.org/ntsb-events/332); cases with it: [Piper PA-24-260, 2 cases](https://openairdocs.org/ntsb-events/332/sequence.md?model=7102406), [All aircraft, 182 cases](https://openairdocs.org/ntsb-events/332/sequence.md)
- [Landing-landing roll: Landing gear collapse](https://openairdocs.org/ntsb-events/094) (defining event); cases with it: [Piper PA-24-260, 8 cases](https://openairdocs.org/ntsb-events/094/sequence.md?model=7102406), [All aircraft, 1,787 cases](https://openairdocs.org/ntsb-events/094/sequence.md)

## Aircraft

- Registration: [N9366P](https://openairdocs.org/deregistered/N9366P-2026-08-15), registration cancelled 2026-08-15, S/N 24-4866, built 1969 (OpenAirDocs)
- Reported make and model: PIPER PA-24-260
- Registry model: [Piper PA-24-260](https://openairdocs.org/model/piper-pa-24-260) (registry code 7102406) (OpenAirDocs)
- Registry engine: [Lycoming TI0-540 series](https://openairdocs.org/engine/lycoming-ti0-540-series) (registry code 41533, turbo-prop) (OpenAirDocs)
- Category: Airplane
- Serial number: 24-4866
- Year built: 1969
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Mjc Limited LLC
- Registered owner: Mjc Limited LLC
- Airworthiness certificate: Standard, Normal
- Departed: MSO, Missoula, MT
- Destination: Same as departure
- Airport: WYS, Yellowstone, runway 01/19, 8,400 × 150 ft, asphalt

## Weather

- Conditions: Visual (VMC), Day
- Wind: 90° at 3 knots
- Visibility: 10 statute miles
- Temperature: 53 °F, dew point 44 °F
- Altimeter: 22.70 inHg
- Observed at: 9:56
- METAR: 9:56 AM	53 °F	44 °F	71 %	E	3 mph	0 mph	22.70 in	0.0 in	N/A

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 20250629009819A](https://openairdocs.org/incident/20250629009819A), Jun 29, 2025: Piper PA-24-260, West Yellowston, MT, Substantial damage. On June 29, 2025 at 1033 MDT, a privately owned Piper PA-24-260, with one pilot and one passenger on board, performed a gear up landing at Yellowstone Airport,…

## Other investigations on N9366P (1)

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

- [NTSB FTW75FQG28](https://openairdocs.org/ntsb/FTW75FQG28), Nov 1, 1974: Piper PA-24 (N9366P), Lubbock, TX, substantial damage

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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