# Recip eng liquid cooling

- Type: NTSB finding subsection
- Path: [Aircraft](https://openairdocs.org/ntsb-findings/01) › [Aircraft power plant](https://openairdocs.org/ntsb-findings/0105) › [Engine (reciprocating)](https://openairdocs.org/ntsb-findings/010585) › Recip eng liquid cooling
- NTSB code: 01058570
- Cases: 17
- In the probable cause: 13
- Fatal cases: 1
- All cases: https://openairdocs.org/ntsb-findings/01058570/cases.md
- Cases with it in the probable cause: https://openairdocs.org/ntsb-findings/01058570/cases.md?cause=1
- Page: https://openairdocs.org/ntsb-findings/01058570

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

- 2008: 1 / 1
- 2011: 2 / 2
- 2013: 0 / 2
- 2016: 1 / 1
- 2017: 3 / 3
- 2018: 1 / 1
- 2022: 0 / 1
- 2023: 2 / 2
- 2024: 2 / 3
- 2025: 1 / 1

## Defining events in these cases

- [Loss of engine power (total)](https://openairdocs.org/ntsb-events/341): 10 cases
- [Powerplant sys/comp malf/fail](https://openairdocs.org/ntsb-events/340): 4 cases
- [Miscellaneous/other](https://openairdocs.org/ntsb-events/900): 1 cases
- [Loss of control on ground](https://openairdocs.org/ntsb-events/230): 1 cases
- [Landing gear collapse](https://openairdocs.org/ntsb-events/094): 1 cases

## Aircraft models (registry)

- [Bellanca 17-30A](https://openairdocs.org/model/bellanca-17-30a): 1 cases
- [Quicksilver Aeronautics L-S2S](https://openairdocs.org/model/quicksilver-aeronautics-l-s2s): 1 cases
- [Goldner Leslie ZENITH 701](https://openairdocs.org/model/goldner-leslie-zenith-701): 1 cases
- [Powrachute PEGASUS](https://openairdocs.org/model/powrachute-pegasus): 1 cases
- [Campbell Richard W MOSQUITO XE285](https://openairdocs.org/model/campbell-richard-w-mosquito-xe285): 1 cases
- [Motley Gary W ZENITH CH750 CRUZER](https://openairdocs.org/model/motley-gary-w-zenith-ch750-cruzer): 1 cases
- [Richard L Jones CH-601 XLB](https://openairdocs.org/model/richard-l-jones-ch-601-xlb): 1 cases
- [Vanderark Jan R RV-10](https://openairdocs.org/model/vanderark-jan-r-rv-10): 1 cases
- [Doshier Wilbert A GT-500](https://openairdocs.org/model/doshier-wilbert-a-gt-500): 1 cases
- [Gipson William H RV-10](https://openairdocs.org/model/gipson-william-h-rv-10): 1 cases

## Other findings in the same cases

- [Not determined, general](https://openairdocs.org/ntsb-findings/05000000) (Not determined): 2 cases
- [Aircraft control](https://openairdocs.org/ntsb-findings/02063040) (Personnel issues): 2 cases
- [Scheduled/routine maintenance](https://openairdocs.org/ntsb-findings/02062010) (Personnel issues): 2 cases
- [Decision making/judgment](https://openairdocs.org/ntsb-findings/02041520) (Personnel issues): 2 cases
- [Recip eng oil sys](https://openairdocs.org/ntsb-findings/01058550) (Aircraft): 2 cases
- [Engine (reciprocating), general](https://openairdocs.org/ntsb-findings/01058500) (Aircraft): 2 cases
- [Soft surface](https://openairdocs.org/ntsb-findings/03023020) (Environmental issues): 1 cases
- [Fence/fence post](https://openairdocs.org/ntsb-findings/03022047) (Environmental issues): 1 cases
- [Sign/marker](https://openairdocs.org/ntsb-findings/03022015) (Environmental issues): 1 cases
- [Sloped/uneven terrain](https://openairdocs.org/ntsb-findings/03021017) (Environmental issues): 1 cases

## Newest cases

- [NTSB WPR25LA095](https://openairdocs.org/ntsb/WPR25LA095), Feb 17, 2025: Quicksilver Aeronautics L-S2S (N14QK), Geyserville, CA, substantial damage. Probable cause: The pilot’s failure to secure the coolant cap during the preflight inspection, which resulted in a total loss of engine power due to overheating and a subsequent forced landing.
- [NTSB CEN25LA038](https://openairdocs.org/ntsb/CEN25LA038), Nov 11, 2024: Composite FX Mosquito XE (N869DJ), Waco, TX, substantial damage. Probable cause: The total loss of engine power and subsequent impact with terrain during an autorotation. Contributing to the accident was the improper sealing of the liquid cooling system.
- [NTSB CEN24LA333](https://openairdocs.org/ntsb/CEN24LA333), Sep 2, 2024: Zenith Zodiac CH601 XL (N624RJ), Odessa, MO, substantial damage. Probable cause: Overheating of the engine coolant for reasons that could not be determined, which resulted in a precautionary off-airport landing, during which the airplane sustained substantial damage.
- [NTSB ERA24LA355](https://openairdocs.org/ntsb/ERA24LA355), Aug 14, 2024: Yates Elden H Avipro Bearhawk (N652BH), Roxbury, ME, substantial damage. Probable cause: The pilot’s unstable approach which resulted in a landing with insufficient runway remaining to stop and subsequent impact with a river embankment. Contributing was the engine coolant system anomaly.
- [NTSB CEN24LA031](https://openairdocs.org/ntsb/CEN24LA031), Oct 21, 2023: Powrachute Pegasus (N52631), Manhattan, KS, substantial damage. Probable cause: The pilot’s improper modification of the engine cooling system that resulted in an engine overheat and total loss of power. Contributing to the accident was the pilot’s decision to continue the…
- [NTSB CEN23LA327](https://openairdocs.org/ntsb/CEN23LA327), Jul 21, 2023: Vans RV10 (N730WL), Chouteau, OK, substantial damage. Probable cause: The total loss of engine power as a result of a failed positive crankcase ventilation (PCV) valve and a subsequent impact with terrain.
- [NTSB ERA22LA268](https://openairdocs.org/ntsb/ERA22LA268), May 9, 2022: Wingren Norman Escapade (N86RD), Brasstown, NC, substantial damage. Probable cause: The failure of the engine gearbox drive flange, which resulted in a nose gear collapse during the subsequent precautionary landing in tall grass.
- [NTSB WPR18FA131](https://openairdocs.org/ntsb/WPR18FA131), May 2, 2018: American Air Racing Thunder Mustang (N352BT), Reno, NV, substantial damage, 1 fatal. Probable cause: The pilot's failure to properly secure the engine coolant pump pulley during recent maintenance, which resulted in a loss of the engine's lubrication, cooling, and propeller control systems, and a…
- [NTSB CEN18LA042](https://openairdocs.org/ntsb/CEN18LA042), Nov 27, 2017: Motley Gary W Zenith CH750 Cruzer (N956GM), Louviers, CO, substantial damage. Probable cause: The engine’s excessive cylinder head temperatures and the subsequent seizing of the engine, which resulted from an engine control unit that caused the engine’s fuel-air mixture to be too lean.
- [NTSB WPR18LA036](https://openairdocs.org/ntsb/WPR18LA036), Nov 25, 2017: Doshier Wilbert A GT-500 (N599RA), Willows, CA, substantial damage. Probable cause: A loss of engine power during takeoff due a coolant leak and the subsequent overheating of the engine, and the student pilot's failure to maintain airspeed and his exceedance of the airplane's…

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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