WPR25LA243

NTSB accident investigation · Cessna 172N · Ronan, MT · August 8, 2025

Accident · No injuriesClass 4 · LimitedFinal report
Date
August 8, 2025, 09:04 local (15:04 UTC)
Place
Ronan, MT
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Landing
Aircraft
N734SWCessna 172N
Defining event
Landing-flare/touchdown: Abnormal runway contact
Weather
Visual (VMC) · Day
Status
Completed · report October 17, 2025
Report
Approved by Office Director
Investigation class
Class 4 - Basic report with no Prelim publish
NTSB office
Western Pacific Region
Parties
FAA
FAA report
20250808010589A
Case key
200741

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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Probable cause

The student pilot's inadequate landing flare and recovery from a bounced landing.

Findings · 2

NTSB’s coded findings. Those marked are part of the probable cause; the rest are factors or other findings. Under each, the cases with the same finding.

Use of equip/info: aircraft controlPersonnel issues › Task performance · Student/instructed pilotCessna 172N: 150 casesAll aircraft: 9,295 casesProbable cause
Performance/control parameters: landing flareAircraft › Aircraft oper/perf/capability · Not attained/maintainedCessna 172N: 38 casesAll aircraft: 1,285 casesProbable cause

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.

Analysis

The purpose of the flight was for the student pilot to perform a solo cross-country and land at the accident airport. The student pilot stated that following a stabilized approach, he did not properly maneuver the airplane into a flare. The airplane touched down hard on the runway surface and bounced back into the air. The airplane then touched down again and then bounced multiple times, porpoising along the runway. As a result of the impact, the airplane incurred damage to the firewall. The student pilot noted that he failed to add engine power to correct the self-induced oscillation. He stated that there were no pre-impact mechanical malfunctions or failures that would have precluded normal operation.

Aircraft

Registration
N734SW
Reported as
Cessna 172N
Category
Airplane
Serial number
17269086
Built
1977
Airframe hours
15,863
Engine
Lycoming O-320-H2AD, 160 horsepower, reciprocating
Damage
Substantial damage
Flight
Instructional · Part 91
Operator
Red Eagle Aviation
Registered owner
Sierra Sky Aviation LLC
Airworthiness certificate
Standard, Normal
Last inspection
100 hour · July 16, 2025 · 11 hours before
Departed
S27 · Kalispell, MT
Airport
7S0 · Ronan, runway 16/34, 4,798 × 75 ft, asphalt
Equipment
ADS-B

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.

Flight crew

As NTSB recorded them. NTSB leaves out names.

Role
Student pilot
Age
17
Injuries
None
Certificate
Student
Medical
Class 1, Without waivers/limitations
Seat
Left
Restraint
3-point
Flight hours
37 total · 37 in this make and model · 6 as pilot in command

Weather

Conditions
Visual (VMC) · Day
Wind
170° at 2 knots
Visibility
10 statute miles
Lowest ceiling
None
Temperature
52 °F, dew point 46 °F
Altimeter
30.07 inHg
Observed at
7S0

Docket · 2

The files NTSB released with the investigation on October 17, 2025, on NTSB’s docket system: statements, records, photos and specialists’ reports. 3.0 MB in all.

FAA reports on this event · 1

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