# NTSB ANC22LA054: Cessna 182D, N8754X, McGrath, AK, July 6, 2022

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Class 4 · Limited · Final report
- Date: July 5, 2022, 16:25 local (Jul 6, 2022, 00:25 UTC)
- Place: McGrath, AK
- Coordinates: 62.952784, -155.60704
- Nearby events: https://openairdocs.org/map.md?lat=62.9528&lon=-155.6070&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Defining event: [Landing-landing roll: Unknown or undetermined](https://openairdocs.org/ntsb-events/000)
- 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: Alaska Regional Office
- NTSB case key (mKey): 105498
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=ANC22LA054
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/105498/pdf
- NTSB docket: https://data.ntsb.gov/Docket?ProjectID=105498
- Page: https://openairdocs.org/ntsb/ANC22LA054

## Probable cause

A nose landing gear collapse during landing for reasons that could not be determined based on the available information.

## Findings

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

- [Landing gear system: nose/tail landing gear](https://openairdocs.org/ntsb-findings/01023220): Aircraft › Aircraft systems · Unknown/Not determined (probable cause); cases with it: [Cessna 182D, 1 case](https://openairdocs.org/ntsb-findings/01023220/cases.md?model=2072710), [All aircraft, 185 cases](https://openairdocs.org/ntsb-findings/01023220/cases.md)
- [Not determined](https://openairdocs.org/ntsb-findings/05000000): Not determined › Not determined · Unknown/Not determined (probable cause); cases with it: [Cessna 182D, 4 cases](https://openairdocs.org/ntsb-findings/05000000/cases.md?model=2072710), [All aircraft, 2,247 cases](https://openairdocs.org/ntsb-findings/05000000/cases.md)

## Sequence of events

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

- [Landing: Landing gear collapse](https://openairdocs.org/ntsb-events/094); cases with it: [Cessna 182D, 1 case](https://openairdocs.org/ntsb-events/094/sequence.md?model=2072710), [All aircraft, 1,787 cases](https://openairdocs.org/ntsb-events/094/sequence.md)
- [Landing-landing roll: Unknown or undetermined](https://openairdocs.org/ntsb-events/000) (defining event); cases with it: [Cessna 182D, 3 cases](https://openairdocs.org/ntsb-events/000/sequence.md?model=2072710), [All aircraft, 1,703 cases](https://openairdocs.org/ntsb-events/000/sequence.md)

## Analysis

The pilot reported that, after landing, the nose landing gear began a “severe shimmy” and subsequently fractured. The propeller contacted the runway, and the engine mounts sustained substantial damage. The airplane was not made available for examination following the accident, and the source of the shimmy could not be determined based on the available information.

## Aircraft

- Registration: [N8754X](https://openairdocs.org/aircraft/N8754X), registered now, S/N 18253154, built 1960 (OpenAirDocs)
- Reported make and model: CESSNA 182D
- Registry model: [Cessna 182D](https://openairdocs.org/model/cessna-182d) (registry code 2072710) (OpenAirDocs)
- Registry engine: [Continental O-470 series](https://openairdocs.org/engine/continental-o-470-series) (registry code 17026, reciprocating) (OpenAirDocs)
- Category: Airplane
- Serial number: 18253154
- Year built: 1960
- Engines: Continental Motors O-470 230 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Operator: Thomas C Coyle
- Registered owner: Thomas C Coyle
- Airworthiness certificate: Standard, Normal
- Destination: Same as departure
- Airport: PAMC, McGrath Airport, runway 5, 2,000 × 60 ft, gravel
- Equipment: Unknown

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 59; injuries: none; private; airplane ratings: single-engine land; medical: class 3, with waivers/limitations

## Weather

- Conditions: Visual (VMC), Day
- Wind: 230° at 4 knots
- Visibility: 10 statute miles
- Lowest ceiling: 7,000 ft broken
- Temperature: 70 °F, dew point 54 °F
- Altimeter: 29.95 inHg
- Observed at: PAMC
- METAR: METAR PAMC 052353Z 23004KT 10SM BKN070 21/12 A2995 RMK $=

## 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 20220705011759A](https://openairdocs.org/incident/20220705011759A), Jul 5, 2022: Cessna 182D, Mc Grath, AK, Substantial damage. Upon landing the nose wheel began to shimmy. The shimmy got worse, causing the NLG to seperate from the aircraft, resulting in a prop strike. The violent prop…

## Docket (2 files)

The files NTSB released with the investigation on March 30, 2023, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=105498. 638 KB in all.

- Memorandum for record - FAA (item 1, PDF, 1 page, 64 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=15121513&FileExtension=pdf&FileName=ANC22LA054%20MOR-Rel.pdf
- Photos (item 2, PDF, 3 pages, 575 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=15122411&FileExtension=pdf&FileName=ANC22LA054%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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