# Gear position and warning

- Type: NTSB finding subsection
- Path: [Aircraft](https://openairdocs.org/ntsb-findings/01) › [Aircraft systems](https://openairdocs.org/ntsb-findings/0102) › [Landing gear system](https://openairdocs.org/ntsb-findings/010232) › Gear position and warning
- NTSB code: 01023260
- Cases: 37
- In the probable cause: 24
- Fatal cases: 5
- All cases: https://openairdocs.org/ntsb-findings/01023260/cases.md
- Cases with it in the probable cause: https://openairdocs.org/ntsb-findings/01023260/cases.md?cause=1
- Page: https://openairdocs.org/ntsb-findings/01023260

## Cases per year (in the probable cause / all)

- 2008: 2 / 4
- 2009: 2 / 2
- 2010: 1 / 3
- 2011: 1 / 4
- 2012: 5 / 5
- 2015: 2 / 3
- 2017: 1 / 1
- 2018: 0 / 2
- 2019: 1 / 2
- 2021: 1 / 2
- 2022: 2 / 2
- 2023: 3 / 3
- 2024: 3 / 4

## Defining events in these cases

- [Landing gear not configured](https://openairdocs.org/ntsb-events/095): 16 cases
- [Landing gear collapse](https://openairdocs.org/ntsb-events/094): 13 cases
- [Electrical system malf/failure](https://openairdocs.org/ntsb-events/332): 2 cases
- [Collision during takeoff/land](https://openairdocs.org/ntsb-events/490): 1 cases
- [Aerodynamic stall/spin](https://openairdocs.org/ntsb-events/241): 1 cases
- [Loss of control in flight](https://openairdocs.org/ntsb-events/240): 1 cases
- [Fuel starvation](https://openairdocs.org/ntsb-events/191): 1 cases
- [Nose over/nose down](https://openairdocs.org/ntsb-events/096): 1 cases
- [Abnormal runway contact](https://openairdocs.org/ntsb-events/090): 1 cases

## Aircraft models (registry)

- [Piper PA-30](https://openairdocs.org/model/piper-pa-30): 4 cases
- [Cessna P210N](https://openairdocs.org/model/cessna-p210n): 3 cases
- [Cessna 421C](https://openairdocs.org/model/cessna-421c): 2 cases
- [Cessna T210L](https://openairdocs.org/model/cessna-t210l): 2 cases
- [Cessna A185F](https://openairdocs.org/model/cessna-a185f): 2 cases
- [Beech E-55](https://openairdocs.org/model/beech-e-55): 2 cases
- [Beech 95-B55 (T42A)](https://openairdocs.org/model/beech-95-b55-t42a): 2 cases
- [Yakovlev YAK 52](https://openairdocs.org/model/yakovlev-yak-52): 1 cases
- [Raytheon B36TC](https://openairdocs.org/model/raytheon-b36tc): 1 cases
- [Piper PA-32R-300](https://openairdocs.org/model/piper-pa-32r-300): 1 cases

## Other findings in the same cases

- [Use of equip/system](https://openairdocs.org/ntsb-findings/02063015) (Personnel issues): 11 cases
- [Gear extension and retract sys](https://openairdocs.org/ntsb-findings/01023230) (Aircraft): 10 cases
- [Forgotten action/omission](https://openairdocs.org/ntsb-findings/02041035) (Personnel issues): 7 cases
- [Not determined, general](https://openairdocs.org/ntsb-findings/05000000) (Not determined): 5 cases
- [Use of checklist](https://openairdocs.org/ntsb-findings/02063030) (Personnel issues): 5 cases
- [Landing gear system, general](https://openairdocs.org/ntsb-findings/01023200) (Aircraft): 5 cases
- [Lack of action](https://openairdocs.org/ntsb-findings/02041030) (Personnel issues): 3 cases
- [Task monitoring/vigilance](https://openairdocs.org/ntsb-findings/02021520) (Personnel issues): 3 cases
- [Main landing gear](https://openairdocs.org/ntsb-findings/01023210) (Aircraft): 3 cases
- [Aircraft control](https://openairdocs.org/ntsb-findings/02063040) (Personnel issues): 2 cases

## Newest cases

- [NTSB CEN25LA016](https://openairdocs.org/ntsb/CEN25LA016), Oct 10, 2024: Piper PA-30 (N7577Y), Springfield, MO, substantial damage. Probable cause: The flight instructor’s inability to confirm landing gear position before landing due to the sun glare which resulted in gear up landing. Contributing to the accident was an undetected tripped…
- [NTSB WPR24FA285](https://openairdocs.org/ntsb/WPR24FA285), Aug 24, 2024: Cessna A185F (N61323), Kent, WA, substantial damage, 1 fatal. Probable cause: The pilot’s failure to properly configure the amphibious landing gear for a water landing, which resulted in a touchdown on the water with the wheels extended, noseover, and airplane submersion.
- [NTSB CEN24LA264](https://openairdocs.org/ntsb/CEN24LA264), Jul 12, 2024: Cessna 210 (N9776Y), Mount Vernon, IL, substantial damage. Probable cause: The pilot’s failure to lower the landing gear, resulting in a wheel up landing. Contributing to the accident was the intermittent warning horn which likely did not sound to warn the pilot about the…
- [NTSB ERA24LA193](https://openairdocs.org/ntsb/ERA24LA193), Apr 24, 2024: Beech E-55 (N333HE), Greenville, SC, substantial damage. Probable cause: The pilot’s failure to extend the landing gear before landing.
- [NTSB CEN23LA407](https://openairdocs.org/ntsb/CEN23LA407), Aug 30, 2023: Beech 95-B55 (T42A) (N2KM), Greeley, CO, substantial damage. Probable cause: The pilot’s failure to extend the landing gear. Contributing to the accident was a malfunction of the landing gear warning horn for undetermined reasons.
- [NTSB WPR23LA321](https://openairdocs.org/ntsb/WPR23LA321), Aug 21, 2023: Cessna T210M (N6535B), Napa, CA, substantial damage. Probable cause: Insufficient hydraulic pressure to the landing gear system following the completion of the emergency gear extension checklist, which resulted in the main landing gear collapsing during landing.…
- [NTSB WPR23LA186](https://openairdocs.org/ntsb/WPR23LA186), May 9, 2023: Aviat A-1C-180 Husky (N416AG), Lakewood, WA, destroyed. Probable cause: An erroneous landing gear warning that led to the pilot’s decision to abort the landing, which resulted in a collision with trees during a go-around.
- [NTSB WPR22LA353](https://openairdocs.org/ntsb/WPR22LA353), Sep 20, 2022: Cessna 525B (N528DV), Pasco, WA, destroyed. Probable cause: The failure of the pilot to ensure the landing gear was extended before landing. Contributing was the pilot’s failure to fly a stabilized approach, and his configuration of the airplane that…
- [NTSB ERA22LA415](https://openairdocs.org/ntsb/ERA22LA415), Aug 25, 2022: Cessna T210N (N5132C), Georgetown, DE, substantial damage. Probable cause: The pilot's failure to extend the landing gear before landing. Contributing to the accident was an inoperative landing gear warning horn.
- [NTSB ERA22FA047](https://openairdocs.org/ntsb/ERA22FA047), Nov 5, 2021: Piper PA30 (N8924Y), Rock Hill, SC, substantial damage, 1 fatal. Probable cause: The pilot’s exceedance of the airplane's critical angle of attack while troubleshooting a landing gear indication, which resulted in an aerodynamic stall at low altitude.

NTSB has coded findings and defining events since 2008; earlier cases used its older occurrence and cause codes and aren't counted.

Findings: https://openairdocs.org/ntsb-findings.md. Defining events: https://openairdocs.org/ntsb-events.md. Phases of flight: https://openairdocs.org/ntsb-phases.md. Every investigation, filtered by finding, event, phase, state, year or model: https://openairdocs.org/ntsb.md (for example ?state=MI&fatal=1).

NTSB's definitions: Accident and incident, 49 CFR 830.2 (https://www.ecfr.gov/current/title-49/subtitle-B/chapter-VIII/part-830/subpart-A/section-830.2), CICTT occurrence categories (PDF) (https://www.ntsb.gov/safety/data/Documents/datafiles/OccurrenceCategoryDefinitions.pdf), CICTT phases of flight (PDF) (https://www.ntsb.gov/safety/data/Documents/datafiles/PhaseofFlightDefinitions.pdf), and NTSB coding manual, before 2008 (PDF) (https://www.ntsb.gov/GILS/Documents/codman.pdf). NTSB publishes no definitions for its findings, only their names.

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