# Engine shutdown

- Type: NTSB defining event
- NTSB code: 140
- CICTT category: Other
- Defining event in: 4 cases
- In the sequence of: 80 cases
- Fatal cases: 1
- All cases: https://openairdocs.org/ntsb-events/140/cases.md
- Cases with it anywhere in the sequence: https://openairdocs.org/ntsb-events/140/sequence.md
- Page: https://openairdocs.org/ntsb-events/140

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

- 2008: 0 / 6
- 2009: 0 / 6
- 2010: 0 / 2
- 2011: 0 / 7
- 2012: 0 / 5
- 2013: 0 / 6
- 2014: 0 / 7
- 2015: 0 / 3
- 2016: 0 / 7
- 2017: 0 / 6
- 2018: 0 / 2
- 2019: 0 / 7
- 2020: 0 / 1
- 2021: 1 / 2
- 2022: 0 / 5
- 2023: 0 / 2
- 2024: 0 / 2
- 2025: 2 / 3
- 2026: 1 / 1

## Phase of flight

- Landing-flare/touchdown: 1 cases
- Maneuvering-hover: 1 cases
- Maneuvering-low-alt flying: 1 cases
- Enroute-descent: 1 cases

## In the probable cause of these cases

- [Engine (reciprocating), general](https://openairdocs.org/ntsb-findings/01058500) (Aircraft): 1 cases

## Aircraft models (registry)

- [Hughes Helicopters HUGHES 369D](https://openairdocs.org/model/hughes-helicopters-hughes-369d): 1 cases
- [Cessna TU206F](https://openairdocs.org/model/cessna-tu206f): 1 cases

## Newest cases

- [NTSB ERA26LA097](https://openairdocs.org/ntsb/ERA26LA097), Jan 22, 2026: Hughes 369 (N105AC), North Augusta, SC, substantial damage, investigation ongoing
- [NTSB ERA26LA066](https://openairdocs.org/ntsb/ERA26LA066), Dec 11, 2025: Cessna TU206 (N917WC), Pell City, AL, substantial damage, investigation ongoing
- [NTSB GAA25WA072](https://openairdocs.org/ntsb/GAA25WA072), Jan 11, 2025: Air Tractor AT402 (PR-SVA), Itumbiara, Brazil, substantial damage
- [NTSB ERA21FA212](https://openairdocs.org/ntsb/ERA21FA212), May 6, 2021: Ted Smith Aerostar 600 (C-FAAZ), La Belle, FL, substantial damage, 1 fatal. Probable cause: The pilot's inadvertent shutdown of the left engine following an intentional shutdown of the right engine while practicing one engine inoperative (OEI) procedures. Contributing to the accident was…

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.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.