# Coolant

- Type: NTSB finding subsection
- Path: [Aircraft](https://openairdocs.org/ntsb-findings/01) › [Fluids/misc hardware](https://openairdocs.org/ntsb-findings/0107) › [Fluids](https://openairdocs.org/ntsb-findings/010710) › Coolant
- NTSB code: 01071025
- Cases: 4
- In the probable cause: 4
- Fatal cases: 0
- All cases: https://openairdocs.org/ntsb-findings/01071025/cases.md
- Cases with it in the probable cause: https://openairdocs.org/ntsb-findings/01071025/cases.md?cause=1
- Page: https://openairdocs.org/ntsb-findings/01071025

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

- 2010: 1 / 1
- 2011: 1 / 1
- 2017: 1 / 1
- 2021: 1 / 1

## Defining events in these cases

- [Loss of engine power (total)](https://openairdocs.org/ntsb-events/341): 2 cases
- [Powerplant sys/comp malf/fail](https://openairdocs.org/ntsb-events/340): 1 cases
- [Aerodynamic stall/spin](https://openairdocs.org/ntsb-events/241): 1 cases

## Aircraft models (registry)

- [Jude Mike C SIDE WINDER](https://openairdocs.org/model/jude-mike-c-side-winder): 1 cases
- [Cardix Thierry P AIRAILE S 12 S RANS](https://openairdocs.org/model/cardix-thierry-p-airaile-s-12-s-rans): 1 cases
- [Smith Richard D JR REVOLUTION MINI 500](https://openairdocs.org/model/smith-richard-d-jr-revolution-mini-500): 1 cases
- [Stout Garry V EUROPA - TRIGEAR](https://openairdocs.org/model/stout-garry-v-europa-trigear): 1 cases

## Other findings in the same cases

- [Preflight inspection](https://openairdocs.org/ntsb-findings/02061510) (Personnel issues): 3 cases
- [Rough terrain](https://openairdocs.org/ntsb-findings/03021015) (Environmental issues): 1 cases
- [Use of checklist](https://openairdocs.org/ntsb-findings/02063030) (Personnel issues): 1 cases
- [Use of equip/system](https://openairdocs.org/ntsb-findings/02063015) (Personnel issues): 1 cases
- [Replacement](https://openairdocs.org/ntsb-findings/02062020) (Personnel issues): 1 cases
- [Hoses and tubes](https://openairdocs.org/ntsb-findings/01071410) (Aircraft): 1 cases

## Newest cases

- [NTSB WPR21LA325](https://openairdocs.org/ntsb/WPR21LA325), Aug 16, 2021: Stout Garry V Europa - Trigear (N133AC), Hanksville, UT, substantial damage. Probable cause: The pilot’s installation of a non-original equipment manufactured radiator cap, which resulted in the loss of coolant and the engine’s exceedance of the maximum admissible cylinder head temperature.…
- [NTSB CEN17LA117](https://openairdocs.org/ntsb/CEN17LA117), Mar 4, 2017: Jude Mike C Side Winder (N7524V), Paynesville, MN, substantial damage. Probable cause: The pilot’s inadequate preflight inspection, during which he failed to ensure that there was sufficient coolant in the engine reservoir, which resulted in the engine getting too hot and the engine…
- [NTSB WPR11LA202](https://openairdocs.org/ntsb/WPR11LA202), Apr 16, 2011: Rans S-12 (N107JL), Marana, AZ, substantial damage. Probable cause: The pilot's failure to conduct an adequate preflight inspection, which resulted in a loss of engine coolant during climb due to an unsecured tank cap. Contributing to the accident was the pilot's…
- [NTSB ERA10LA216](https://openairdocs.org/ntsb/ERA10LA216), Apr 7, 2010: Smith Richard D JR Revolution Mini 500 (N118NR), Middleboro, MA, substantial damage. Probable cause: A loss of engine coolant, which resulted in a loss of engine power during the pilot’s attempt to cushion a precautionary landing. Contributing to the accident was a disconnected engine coolant hose…

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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