# Engine (turbine/turboprop)

- Type: NTSB finding section
- Path: [Aircraft](https://openairdocs.org/ntsb-findings/01) › [Aircraft power plant](https://openairdocs.org/ntsb-findings/0105) › Engine (turbine/turboprop)
- NTSB code: 010572
- Cases: 224
- In the probable cause: 207
- Fatal cases: 28
- All cases: https://openairdocs.org/ntsb-findings/010572/cases.md
- Cases with it in the probable cause: https://openairdocs.org/ntsb-findings/010572/cases.md?cause=1
- Page: https://openairdocs.org/ntsb-findings/010572

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

- 2008: 17 / 18
- 2009: 15 / 16
- 2010: 16 / 18
- 2011: 16 / 19
- 2012: 12 / 12
- 2013: 18 / 18
- 2014: 13 / 13
- 2015: 10 / 10
- 2016: 7 / 7
- 2017: 14 / 16
- 2018: 10 / 11
- 2019: 14 / 14
- 2020: 7 / 8
- 2021: 8 / 11
- 2022: 10 / 10
- 2023: 10 / 10
- 2024: 8 / 8
- 2025: 2 / 5

## Findings

- [Turbine section](https://openairdocs.org/ntsb-findings/01057250): 74 cases, 67 in the probable cause
- [Engine (turbine/turboprop), general](https://openairdocs.org/ntsb-findings/01057200): 67 cases, 60 in the probable cause
- [Compressor section](https://openairdocs.org/ntsb-findings/01057230): 53 cases, 48 in the probable cause
- [Oil system](https://openairdocs.org/ntsb-findings/01057261): 16 cases, 14 in the probable cause
- [Accessory drives](https://openairdocs.org/ntsb-findings/01057260): 12 cases, 12 in the probable cause
- [Combustion section](https://openairdocs.org/ntsb-findings/01057240): 9 cases, 9 in the probable cause
- [Reduction gear and shaft](https://openairdocs.org/ntsb-findings/01057210): 8 cases, 8 in the probable cause
- [Air inlet section (core eng)](https://openairdocs.org/ntsb-findings/01057220): 4 cases, 4 in the probable cause

## Defining events in these cases

- [Loss of engine power (total)](https://openairdocs.org/ntsb-events/341): 84 cases
- [Powerplant sys/comp malf/fail](https://openairdocs.org/ntsb-events/340): 44 cases
- [Loss of engine power (partial)](https://openairdocs.org/ntsb-events/342): 34 cases
- [Uncontained engine failure](https://openairdocs.org/ntsb-events/343): 22 cases
- [Fire/smoke (non-impact)](https://openairdocs.org/ntsb-events/150): 7 cases
- [Miscellaneous/other](https://openairdocs.org/ntsb-events/900): 5 cases
- [Unknown or undetermined](https://openairdocs.org/ntsb-events/000): 5 cases
- [Loss of control in flight](https://openairdocs.org/ntsb-events/240): 4 cases
- [Fuel contamination](https://openairdocs.org/ntsb-events/193): 4 cases
- [Birdstrike](https://openairdocs.org/ntsb-events/901): 3 cases

## Aircraft models (registry)

- [Bell 407](https://openairdocs.org/model/bell-407): 7 cases
- [Cessna 208B](https://openairdocs.org/model/cessna-208b): 6 cases
- [Bell Helicopter Textron 206L-1](https://openairdocs.org/model/bell-helicopter-textron-206l-1): 6 cases
- [Air Tractor AT-502B](https://openairdocs.org/model/air-tractor-at-502b): 6 cases
- [Bell 206B](https://openairdocs.org/model/bell-206b): 5 cases
- [Piper PA46-500TP](https://openairdocs.org/model/piper-pa46-500tp): 4 cases
- [Hughes Helicopters HUGHES 369D](https://openairdocs.org/model/hughes-helicopters-hughes-369d): 4 cases
- [Mcdonnell Douglas Helicopter 369E](https://openairdocs.org/model/mcdonnell-douglas-helicopter-369e): 4 cases
- [Air Tractor AT-802A](https://openairdocs.org/model/air-tractor-at-802a): 4 cases
- [Eurocopter AS 350 B2](https://openairdocs.org/model/eurocopter-as-350-b2): 3 cases

## Other findings in the same cases

- [Not determined, general](https://openairdocs.org/ntsb-findings/05000000) (Not determined): 23 cases
- [Installation](https://openairdocs.org/ntsb-findings/02062035) (Personnel issues): 9 cases
- [Decision making/judgment](https://openairdocs.org/ntsb-findings/02041520) (Personnel issues): 9 cases
- [Aircraft control](https://openairdocs.org/ntsb-findings/02063040) (Personnel issues): 8 cases
- [Maintenance, general](https://openairdocs.org/ntsb-findings/02062000) (Personnel issues): 8 cases
- [Scheduled/routine inspection](https://openairdocs.org/ntsb-findings/02061520) (Personnel issues): 8 cases
- [Lack of action](https://openairdocs.org/ntsb-findings/02041030) (Personnel issues): 7 cases
- [Oil](https://openairdocs.org/ntsb-findings/01071020) (Aircraft): 7 cases
- [Altitude](https://openairdocs.org/ntsb-findings/01062012) (Aircraft): 7 cases
- [Equipment manufacture](https://openairdocs.org/ntsb-findings/04013010) (Organizational issues): 6 cases

## Newest cases

- [NTSB ENG25WA049](https://openairdocs.org/ntsb/ENG25WA049), Jun 29, 2025: Embraer EMB145 (5N-BZY), Sokoto, Nigeria, incident, no damage
- [NTSB DCA25LA185](https://openairdocs.org/ntsb/DCA25LA185), Apr 17, 2025: Boeing 737 (N7724A), Houston, TX, no damage. Probable cause: Serious Injury to a flight attendant sustained during an evacuation.
- [NTSB ENG25WA034](https://openairdocs.org/ntsb/ENG25WA034), Mar 13, 2025: Airbus A321 (XA-VXP), Ciudad de México, Mexico, occurrence, no damage
- [NTSB DCA25LA114](https://openairdocs.org/ntsb/DCA25LA114), Feb 2, 2025: Airbus Industrie A319 (N837UA), Houston, TX, occurrence, no damage. Probable cause: The failure of the cabin crew to activate the evacuation alarm and to maintain coordinated communication with the flight crew following the cabin crew’s decision to command an evacuation, which…
- [NTSB ENG25WA015](https://openairdocs.org/ntsb/ENG25WA015), Jan 20, 2025: Bombardier BD100 1A10 (CS-CHJ), Nassau, Bahamas, incident, no damage
- [NTSB CEN25FA006](https://openairdocs.org/ntsb/CEN25FA006), Oct 8, 2024: Beech C99 (N130GP), Norfolk, NE, destroyed, 1 fatal. Probable cause: The pilot’s failure to maintain adequate airspeed following a partial loss of engine power during takeoff, which resulted in a loss of airplane control. Contributing to the accident was the fatigue…
- [NTSB ENG24LA028](https://openairdocs.org/ntsb/ENG24LA028), Jul 26, 2024: Bell 407 (N793SF), Oktaha, OK, incident, minor damage. Probable cause: The loss of engine power due to high cycle fatigue failure of a power turbine stage 3 turbine wheel blade. The resulting engine imbalance caused a decoupling of the gas producer stage 1 and stage 2…
- [NTSB CEN24LA239](https://openairdocs.org/ntsb/CEN24LA239), Jun 17, 2024: Thrush S2R (N529KC), Hebron, ND, substantial damage. Probable cause: Foreign object debris in the Negative Torque Sensing (NTS) system check valve, which impeded the flow of oil to the NTS system and the propeller governor (PG) reset piston, resulting in a total loss…
- [NTSB CEN24LA229](https://openairdocs.org/ntsb/CEN24LA229), Jun 13, 2024: Aero Commander S2R (N1746S), White, SD, substantial damage. Probable cause: A low-level collision and engine ingestion with ducks, which resulted in a total loss of engine power, a forced landing, and a subsequent nose over.
- [NTSB WPR24LA161](https://openairdocs.org/ntsb/WPR24LA161), May 27, 2024: Aerospatiale SA315B (N57948), Hildale, UT, substantial damage. Probable cause: Maintenance personnel’s failure to properly secure the EGT thermocouples, which resulted in catastrophic overtemperature of the engine and a total loss of engine power.

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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