# NTSB CEN24LA109: Javron PA-12 Replica, N360WC, Inver Grove Heights, MN, February 4, 2024

- Type: NTSB accident investigation
- Classification: Accident · Minor injuries · Class 4 · Limited · Final report
- Date: February 4, 2024, 12:30 local (18:30 UTC)
- Place: Inver Grove Heights, MN · Mississippi River
- Coordinates: 44.822353, -93.00766 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=44.8224&lon=-93.0077&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Defining event: [Landing: Landing gear not configured](https://openairdocs.org/ntsb-events/095)
- Highest injury: Minor injuries
- Injuries: 1 minor
- Status: Completed
- Report: Approved by Office Director
- Investigation class: Class 4 - Basic report with no Prelim publish
- NTSB office: Central Region
- Parties: FAA
- NTSB case key (mKey): 193752
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CEN24LA109
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/193752/pdf
- NTSB docket: https://data.ntsb.gov/Docket?ProjectID=193752
- Page: https://openairdocs.org/ntsb/CEN24LA109

## Probable cause

The pilot’s failure to properly configure the landing gear on his amphibious airplane before landing on water.

## Findings

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

- [Use of equip/info: use of equip/system](https://openairdocs.org/ntsb-findings/02063015): Personnel issues › Task performance · Pilot (probable cause); cases with it: [Clayton S Adams PA-12 REPLICA, 1 case](https://openairdocs.org/ntsb-findings/02063015/cases.md?model=056389N), [All aircraft, 1,391 cases](https://openairdocs.org/ntsb-findings/02063015/cases.md)
- [Landing gear system: gear extension and retract sys](https://openairdocs.org/ntsb-findings/01023230): Aircraft › Aircraft systems · Incorrect use/operation (probable cause); cases with it: [Clayton S Adams PA-12 REPLICA, 1 case](https://openairdocs.org/ntsb-findings/01023230/cases.md?model=056389N), [All aircraft, 416 cases](https://openairdocs.org/ntsb-findings/01023230/cases.md)
- [Action: incorrect action selection](https://openairdocs.org/ntsb-findings/02041010): Personnel issues › Action/decision · Pilot (probable cause); cases with it: [Clayton S Adams PA-12 REPLICA, 1 case](https://openairdocs.org/ntsb-findings/02041010/cases.md?model=056389N), [All aircraft, 397 cases](https://openairdocs.org/ntsb-findings/02041010/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 not configured](https://openairdocs.org/ntsb-events/095) (defining event); cases with it: [Clayton S Adams PA-12 REPLICA, 1 case](https://openairdocs.org/ntsb-events/095/sequence.md?model=056389N), [All aircraft, 584 cases](https://openairdocs.org/ntsb-events/095/sequence.md)
- [Landing-landing roll: Dragged wing/rotor/float/other](https://openairdocs.org/ntsb-events/093); cases with it: [Clayton S Adams PA-12 REPLICA, 1 case](https://openairdocs.org/ntsb-events/093/sequence.md?model=056389N), [All aircraft, 319 cases](https://openairdocs.org/ntsb-events/093/sequence.md)
- [Landing-landing roll: Nose over/nose down](https://openairdocs.org/ntsb-events/096); cases with it: [Clayton S Adams PA-12 REPLICA, 1 case](https://openairdocs.org/ntsb-events/096/sequence.md?model=056389N), [All aircraft, 2,287 cases](https://openairdocs.org/ntsb-events/096/sequence.md)

## Analysis

The pilot reported that he was landing the airplane on the water and that after he conducted his before landing “GUMP” checklist he extended the landing gear on his amphibious airplane in error. Following the water landing, the airplane came to rest inverted in the river and sustained substantial damage to both wings and the windscreen. The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.

## Aircraft

- Registration: [N360WC](https://openairdocs.org/aircraft/N360WC), registered now, S/N JA1804118, built 2023 (OpenAirDocs)
- Reported make and model: Javron PA-12 Replica
- Registry model: [Clayton S Adams PA-12 REPLICA](https://openairdocs.org/model/clayton-s-adams-pa-12-replica) (registry code 056389N) (OpenAirDocs)
- Registry engine: [Titan OX-360 series](https://openairdocs.org/engine/titan-ox-360-series) (registry code 59473, reciprocating) (OpenAirDocs)
- Category: Airplane, amateur-built
- Serial number: JA1804118
- Year built: 2023
- Airframe hours: 60
- Engines: Continental Titan OX360 180 horsepower reciprocating
- Damage: Substantial damage
- Flight: Personal, Part 91
- Airworthiness certificate: Special, Experimental (Special)
- Last inspection: Condition, October 12, 2023
- Departed: KLVN, Minneapolis, MN, MN
- Equipment: Electronic primary flight display, ADS-B, Auto-pilot

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; age 64; injuries: minor; flight instructor, airline transport; airplane ratings: multi-engine land, single-engine land, single-engine sea; instrument ratings: airplane; medical: class 2, with waivers/limitations; last flight review November 4, 2022; seat: front; restraint: 3-point; flight hours: 50,000 total, 460 in this make and model

## Weather

- Conditions: Visual (VMC), Day
- Wind: 80° at 4 knots
- Visibility: 10 statute miles
- Lowest ceiling: none
- Temperature: 45 °F, dew point 30 °F
- Altimeter: 30.14 inHg
- Observed at: KSGS, 2 nm away
- METAR: METAR KSGS 041835Z AUTO 08004KT 10SM CLR 07/M01 A3014 RMK AO2 T00691006=

## 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 20240204002559A](https://openairdocs.org/incident/20240204002559A), Feb 4, 2024: Clayton S Adams PA-12 REPLICA, Inver Grove Hei, MN, Substantial damage. Amphibious aircraft flipped over while landing on river. PIC was able to exit aircraft and was picked up by boat. Pictures from the scene show the aircraft…

## Docket (3 files)

The files NTSB released with the investigation on April 12, 2024, on NTSB's docket system: https://data.ntsb.gov/Docket?ProjectID=193752. 3.4 MB in all.

- Pilot/operator aircraft accident report, NTSB form 6120.1 (item 1, PDF, 8 pages, 1.5 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=16799816&FileExtension=pdf&FileName=CEN24LA109%20-%206120%20-%20Redacted-Rel.pdf
- Photos (item 2, PDF, 5 pages, 1.8 MB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=16800401&FileExtension=pdf&FileName=CEN24LA109%20-%20Photo%20Summary-Rel.pdf
- Meteorology (item 3, PDF, 2 pages, 93 KB): https://data.ntsb.gov/Docket/Document/docBLOB?ID=16800496&FileExtension=pdf&FileName=CEN24LA109%20-%20Weather%20Summary-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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