# NTSB ANC25LA009: Cessna 180, N9140R, Egegik, AK, November 29, 2024

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Class 3 · Limited · Final report
- Date: November 29, 2024, 13:05 local (22:05 UTC)
- Place: Egegik, AK
- Coordinates: 57.9925, -156.86866
- Nearby events: https://openairdocs.org/map.md?lat=57.9925&lon=-156.8687&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Defining event: [Landing-landing roll: Sys/Comp malf/fail (non-power)](https://openairdocs.org/ntsb-events/330)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed
- Report: Approved by Office Director
- Investigation class: Class 3
- NTSB office: Alaska Regional Office
- Parties: FAA
- NTSB case key (mKey): 195574
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC25LA009
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/195574/pdf
- NTSB docket: https://data.ntsb.gov/Docket?ProjectID=195574
- Page: https://openairdocs.org/ntsb/ANC25LA009

## Probable cause

A failure of the right main landing gear leg for reasons that could not be determined.

## Findings

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

- [Landing gear system](https://openairdocs.org/ntsb-findings/01023200): Aircraft › Aircraft systems · Failure (probable cause); cases with it: [Cessna 180, 1 case](https://openairdocs.org/ntsb-findings/01023200/cases.md?model=2072602), [All aircraft, 113 cases](https://openairdocs.org/ntsb-findings/01023200/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: Sys/Comp malf/fail (non-power)](https://openairdocs.org/ntsb-events/330) (defining event); cases with it: [Cessna 180, 8 cases](https://openairdocs.org/ntsb-events/330/sequence.md?model=2072602), [All aircraft, 994 cases](https://openairdocs.org/ntsb-events/330/sequence.md)
- [Landing-landing roll: Abnormal runway contact](https://openairdocs.org/ntsb-events/090); cases with it: [Cessna 180, 10 cases](https://openairdocs.org/ntsb-events/090/sequence.md?model=2072602), [All aircraft, 1,506 cases](https://openairdocs.org/ntsb-events/090/sequence.md)

## Analysis

The pilot stated that, during the landing roll on a remote, gravel-covered beach, the right main landing gear leg broke just above the wheel axle. The remaining gear leg dug into the frozen gravel and folded under the fuselage, and the airplane veered right, resulting in substantial damage to the fuselage and the right wing. A postaccident examination by the pilot revealed that the right main landing gear leg fractured a few inches above the axle. The fractured landing gear leg was ground into the gravel-covered surface before the main landing gear leg folded aft, which obliterated the fracture surface. The separated right wheel assembly traveled into the lake and was not recovered; therefore, the failure mode of the landing gear leg could not be determined. The pilot stated that the main landing gear legs were last inspected for cracks about 15 years before the accident.

## Factual narrative

On November 29, 2024, at 1305 Alaska standard time, a Cessna 180 airplane, N9140R, sustained substantial damage when it was involved in an accident near Egegik, Alaska. The pilot and passenger were not injured. The airplane was operated as a Title 14 Code of Federal Regulations Part 91 personal flight. The pilot reported that, during the landing roll on a remote, gravel-covered beach, the right main landing gear leg broke just above the wheel axle. The remaining gear leg dug into the frozen gravel and folded under the fuselage. The airplane veered right and sustained substantial damage to the fuselage and the right wing. A postaccident examination by the pilot revealed that the right main landing gear leg fractured a few inches above the axle. The fractured landing gear leg was ground into the gravel-covered surface before the main landing gear leg folded aft, which obliterated the fracture surface. The separated right wheel assembly traveled into the lake and was not recovered. The main landing gear legs were last inspected for cracks about 15 years before the accident.

## Aircraft

- Registration: [N9140R](https://openairdocs.org/aircraft/N9140R), registered now, S/N 30207, built 1960 (OpenAirDocs)
- Reported make and model: CESSNA 180
- Registry model: [Cessna 180](https://openairdocs.org/model/cessna-180) (registry code 2072602) (OpenAirDocs)
- Registry engine: [Continental O-470 series](https://openairdocs.org/engine/continental-o-470-series) (registry code 17026, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 30207
- Year built: 1953
- Airframe hours: 8000
- Engines: Continental O-520 265 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Airworthiness certificate: Standard, Normal
- Last inspection: Annual, August 29, 2024, 35 hours before
- Departed: PVT, King Salmon, AK
- Destination: Same as departure
- Flight plan: Company VFR
- Equipment: None

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 67; injuries: none; commercial; airplane ratings: single-engine sea, single-engine land; instrument ratings: airplane; medical: class 3, without waivers/limitations; last flight review March 3, 2024; seat: left; restraint: 4-point; flight hours: 8,948 total, 3,100 in this make and model, 8,947 as pilot in command, 40 in the last 90 days, 5 in the last 30 days, 1.5 in the last 24 hours

## Weather

- Conditions: Visual (VMC), Day
- Wind: 20° at 6 knots
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 16 °F, dew point 12 °F
- Altimeter: 30.10 inHg
- Observed at: PAII, 20 nm away
- METAR: PAII 292156Z AUTO 02006KT 10SM CLR M09/M11 A3010 RMK AO2 SLP192 T10891111 FZRANO

## 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 20241129018279A](https://openairdocs.org/incident/20241129018279A), Nov 29, 2024: Cessna 180, King Salmon, AK, Substantial damage. Pilot plus one passenger took off from private airstrip about 5NM ene of King Salmon airport and landed on shore at west end of becharof lake, about 40NM south…

## Docket (3 files)

The files NTSB released with the investigation on August 20, 2025, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=195574. 21.8 MB in all.

- Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 9 pages, 21.6 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=18198800&FileExtension=pdf&FileName=ANC25La009%206120_Redacted-Rel.pdf
- Release of wreckage (item 2, PDF, 1 page, 18 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=18198311&FileExtension=pdf&FileName=ANC25La009%20Wreckage%20Release_Redacted-Rel.pdf
- Investigative photographs (item 3, PDF, 3 pages, 248 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=18199141&FileExtension=pdf&FileName=ANC25LA009%20photos-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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