# Miscellaneous/other

- Type: NTSB defining event
- NTSB code: 900
- CICTT category: Other
- Defining event in: 736 cases
- In the sequence of: 1,556 cases
- Fatal cases: 105
- All cases: https://openairdocs.org/ntsb-events/900/cases.md
- Cases with it anywhere in the sequence: https://openairdocs.org/ntsb-events/900/sequence.md
- Page: https://openairdocs.org/ntsb-events/900

## Cases per year (defining / in the sequence)

- 2008: 26 / 62
- 2009: 27 / 62
- 2010: 39 / 79
- 2011: 52 / 84
- 2012: 66 / 102
- 2013: 48 / 78
- 2014: 41 / 82
- 2015: 39 / 81
- 2016: 56 / 120
- 2017: 42 / 126
- 2018: 54 / 175
- 2019: 36 / 124
- 2020: 31 / 84
- 2021: 18 / 45
- 2022: 27 / 55
- 2023: 27 / 50
- 2024: 33 / 51
- 2025: 54 / 69
- 2026: 20 / 27

## Phase of flight

- Takeoff: 110 cases
- Maneuvering-low-alt flying: 61 cases
- Initial climb: 55 cases
- Enroute-cruise: 51 cases
- Landing-landing roll: 42 cases
- Approach-VFR pattern final: 40 cases
- Approach: 37 cases
- Landing: 35 cases
- Enroute: 35 cases
- Landing-flare/touchdown: 22 cases

## In the probable cause of these cases

- [Aircraft control](https://openairdocs.org/ntsb-findings/02063040) (Personnel issues): 101 cases
- [Decision making/judgment](https://openairdocs.org/ntsb-findings/02041520) (Personnel issues): 79 cases
- [Use of equip/system](https://openairdocs.org/ntsb-findings/02063015) (Personnel issues): 58 cases
- [Incorrect action performance](https://openairdocs.org/ntsb-findings/02041015) (Personnel issues): 46 cases
- [Monitoring environment](https://openairdocs.org/ntsb-findings/02021545) (Personnel issues): 42 cases
- [Altitude](https://openairdocs.org/ntsb-findings/01062012) (Aircraft): 39 cases
- [Performance/control parameters, general](https://openairdocs.org/ntsb-findings/01062000) (Aircraft): 30 cases
- [Identification/recognition](https://openairdocs.org/ntsb-findings/02041510) (Personnel issues): 27 cases
- [Lack of action](https://openairdocs.org/ntsb-findings/02041030) (Personnel issues): 27 cases
- [Not determined, general](https://openairdocs.org/ntsb-findings/05000000) (Not determined): 26 cases

## Aircraft models (registry)

- [Robinson Helicopter R44 II](https://openairdocs.org/model/robinson-helicopter-r44-ii): 11 cases
- [Robinson Helicopter R22 BETA](https://openairdocs.org/model/robinson-helicopter-r22-beta): 11 cases
- [Robinson Helicopter R44](https://openairdocs.org/model/robinson-helicopter-r44): 9 cases
- [Piper PA-18-150](https://openairdocs.org/model/piper-pa-18-150): 7 cases
- [Hughes Helicopters HUGHES 369D](https://openairdocs.org/model/hughes-helicopters-hughes-369d): 7 cases
- [Cessna 172N](https://openairdocs.org/model/cessna-172n): 7 cases
- [Cessna 172M](https://openairdocs.org/model/cessna-172m): 7 cases
- [Cessna 172S](https://openairdocs.org/model/cessna-172s): 6 cases
- [Cessna A188B](https://openairdocs.org/model/cessna-a188b): 5 cases
- [Cessna 152](https://openairdocs.org/model/cessna-152): 5 cases

## Newest cases

- [NTSB ERA26LA292](https://openairdocs.org/ntsb/ERA26LA292), Aug 4, 2026: Extra Flugzeugproduktions-Und EA 300/LT (N330SB), Whitehouse, OH, substantial damage. Probable cause: The pilot’s failure to ensure the canopy was properly locked before flight, which resulted in the canopy opening during takeoff.
- [NTSB WPR26FA284](https://openairdocs.org/ntsb/WPR26FA284), Aug 2, 2026: Cessna 172 (N1166F), Blackfoot, ID, substantial damage, 1 fatal, investigation ongoing
- [NTSB ERA26LA284](https://openairdocs.org/ntsb/ERA26LA284), Jul 24, 2026: Piper PA28 (N44704), Palmetto, FL, substantial damage. Probable cause: The flight instructor’s failure to maintain clearance from obstacles during low altitude maneuvering, which resulted in a collision with a fence.
- [NTSB WPR26LA275](https://openairdocs.org/ntsb/WPR26LA275), Jul 22, 2026: Czech Aircraft Works Mermaid Skeeter 2 (N42SK), Cougar, WA, substantial damage, investigation ongoing
- [NTSB WPR26LA277](https://openairdocs.org/ntsb/WPR26LA277), Jul 21, 2026: Bell 206B (N2193X), Stonewall, OK, substantial damage, investigation ongoing
- [NTSB DCA26WA294](https://openairdocs.org/ntsb/DCA26WA294), Jul 21, 2026: Airbus A380 (G-XLEE), Grapevine, TX, occurrence, no damage
- [NTSB CEN26LA260](https://openairdocs.org/ntsb/CEN26LA260), Jul 20, 2026: Robinson Helicopter R44 (N224RH), Emerson, IA, substantial damage. Probable cause: The failure of the pilot to verify the loading hose had been disconnected before taking off and the failure of the loader to disconnect the fuel hose from the helicopter.
- [NTSB CEN26LA264](https://openairdocs.org/ntsb/CEN26LA264), Jul 17, 2026: Bell 206B (N297CA), Saint Joseph, IL, substantial damage, investigation ongoing
- [NTSB WPR26FA233](https://openairdocs.org/ntsb/WPR26FA233), Jun 24, 2026: Cessna 195 (N3877V), Pasco, WA, substantial damage, 2 fatal, investigation ongoing
- [NTSB ERA26LA234](https://openairdocs.org/ntsb/ERA26LA234), Jun 8, 2026: Robinson Helicopter R44 (N144CD), Mayesville, SC, substantial damage. Probable cause: The pilot’s failure to remain clear of a power line during an aerial application flight.

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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