# NTSB WPR22LA356: Cessna 172M, N12113, Superior, MT, September 26, 2022

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Class 4 · Limited · Final report
- Date: September 26, 2022, 15:30 local (21:30 UTC)
- Place: Superior, MT
- Coordinates: 47.168259, -114.85374 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=47.1683&lon=-114.8537&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Defining event: [Landing-landing roll: Runway excursion](https://openairdocs.org/ntsb-events/300)
- Highest injury: No injuries
- Injuries: 1 uninjured
- Status: Completed
- Report: Approved by Office Director
- Investigation class: Class 4 - Basic report with no Prelim publish
- NTSB office: Western Pacific Region
- Parties: Federal Aviation Administration
- NTSB case key (mKey): 106007
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=WPR22LA356
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/106007/pdf
- NTSB docket: https://data.ntsb.gov/Docket?ProjectID=106007
- Page: https://openairdocs.org/ntsb/WPR22LA356

## Probable cause

The pilot’s excessive airspeed during a landing, which resulted in a runway overrun and collision with terrain.

## Findings

NTSB's coded findings; those marked are part of the probable cause.

- [Performance/control parameters: airspeed](https://openairdocs.org/ntsb-findings/01062010): Aircraft › Aircraft oper/perf/capability · Not attained/maintained (probable cause); cases with it: [Cessna 172M, 24 cases](https://openairdocs.org/ntsb-findings/01062010/cases.md?model=2072418), [All aircraft, 1,681 cases](https://openairdocs.org/ntsb-findings/01062010/cases.md)
- [Use of equip/info: aircraft control](https://openairdocs.org/ntsb-findings/02063040): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Cessna 172M, 123 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md?model=2072418), [All aircraft, 9,295 cases](https://openairdocs.org/ntsb-findings/02063040/cases.md)

## Sequence of events

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

- [Landing-landing roll: Runway excursion](https://openairdocs.org/ntsb-events/300) (defining event); cases with it: [Cessna 172M, 51 cases](https://openairdocs.org/ntsb-events/300/sequence.md?model=2072418), [All aircraft, 3,643 cases](https://openairdocs.org/ntsb-events/300/sequence.md)

## Analysis

The pilot reported that, during the landing the airplane touched down about halfway down the runway. He applied heavy braking when he noticed the runway end was approaching. The airplane subsequently overran the runway end and collided with a fence. The right wing was substantially damaged. The pilot initially reported that the brake system did not function as expected; however, a brake system examination did not reveal any preaccident mechanical failures or malfunctions that would have precluded normal operation. The pilot later stated that the airspeed was likely too fast when he touched down, which resulted in a runway overrun.

## Aircraft

- Registration: [N12113](https://openairdocs.org/aircraft/N12113), registered now, S/N 17261817, built 1973 (OpenAirDocs)
- Reported make and model: CESSNA 172M
- Registry model: [Cessna 172M](https://openairdocs.org/model/cessna-172m) (registry code 2072418) (OpenAirDocs)
- Registry engine: [Lycoming 0-320 series](https://openairdocs.org/engine/lycoming-0-320-series) (registry code 41508, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 17261817
- Year built: 1973
- Airframe hours: 1403.1
- Engines: LYCOMING O-320-A4M 180 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Airworthiness certificate: Special, Restricted (Special); Standard, Normal
- Last inspection: Annual, November 8, 2021, 8 hours before
- Airport: 9S4, Mineral County Airport, runway 12, 3,450 × 75 ft, asphalt
- Equipment: Auto-pilot, Angle of attack indicator, Handheld GPS, ADS-B, Stall warning system

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 83; injuries: none; private; airplane ratings: single-engine land; medical: class 2; last flight review August 22, 2021; seat: left; restraint: 3-point; flight hours: 1,395 total, 1,395 in this make and model, 1,395 as pilot in command

## Weather

- Conditions: Visual (VMC), Day
- Wind: calm
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 82 °F, dew point 46 °F
- Altimeter: 30.11 inHg
- Observed at: KMSO, 34 nm away
- METAR: KMSO 262253Z 00000KT 10SM CLR 28/08 A3011 RMK AO2 SLP181 T02780083

## 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 20220926015569A](https://openairdocs.org/incident/20220926015569A), Sep 26, 2022: Cessna 172M, Superior, MT, Substantial damage. Pilot stated he landed roughly half-way down the runway (3000 foot runway) but could not be sure if he actually touched down or a visual reference to the…

## Docket (4 files)

The files NTSB released with the investigation on December 20, 2022, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=106007. 2.8 MB in all.

- Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 9 pages, 1.6 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=14640845&FileExtension=pdf&FileName=6120%20n12113%20rcd%20101122%20(PROCESSED)_Redacted%20final-Rel.pdf
- Pilot's statement (item 2, PDF, 2 pages, 56 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=14883231&FileExtension=pdf&FileName=Record%20of%20Conversation%20Pilot-Rel.pdf
- FAA inspector's statement (item 3, PDF, 1 page, 130 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=14845896&FileExtension=pdf&FileName=FAA%20statement_Redacted-Rel.pdf
- Accident photographs (item 4, PDF, 2 pages, 1.0 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=14640764&FileExtension=pdf&FileName=N12113%20photo%20%20WPR22LA356-Rel.pdf

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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