# Recip eng oil sys - 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 oil sys - NTSB code: 01058550 - Cases: 131 - In the probable cause: 122 - Fatal cases: 21 - All cases: https://openairdocs.org/ntsb-findings/01058550/cases.md - Cases with it in the probable cause: https://openairdocs.org/ntsb-findings/01058550/cases.md?cause=1 - Page: https://openairdocs.org/ntsb-findings/01058550 ## Cases per year (in the probable cause / all) - 2008: 6 / 7 - 2009: 9 / 10 - 2010: 5 / 6 - 2011: 2 / 2 - 2012: 15 / 16 - 2013: 8 / 8 - 2014: 8 / 8 - 2015: 7 / 7 - 2016: 3 / 4 - 2017: 3 / 3 - 2018: 6 / 6 - 2019: 9 / 9 - 2020: 6 / 7 - 2021: 10 / 10 - 2022: 7 / 10 - 2023: 10 / 10 - 2024: 5 / 5 - 2025: 1 / 1 - 2026: 2 / 2 ## Defining events in these cases - [Loss of engine power (total)](https://openairdocs.org/ntsb-events/341): 83 cases - [Powerplant sys/comp malf/fail](https://openairdocs.org/ntsb-events/340): 22 cases - [Loss of engine power (partial)](https://openairdocs.org/ntsb-events/342): 12 cases - [Loss of control in flight](https://openairdocs.org/ntsb-events/240): 4 cases - [Collision during takeoff/land](https://openairdocs.org/ntsb-events/490): 2 cases - [Fire/smoke (non-impact)](https://openairdocs.org/ntsb-events/150): 2 cases - [Unknown or undetermined](https://openairdocs.org/ntsb-events/000): 2 cases - [Aerodynamic stall/spin](https://openairdocs.org/ntsb-events/241): 1 cases - [Nose over/nose down](https://openairdocs.org/ntsb-events/096): 1 cases - [Hard landing](https://openairdocs.org/ntsb-events/092): 1 cases ## Aircraft models (registry) - [Piper PA-28-180](https://openairdocs.org/model/piper-pa-28-180): 5 cases - [Piper PA-28R-200](https://openairdocs.org/model/piper-pa-28r-200): 3 cases - [Cessna 210D](https://openairdocs.org/model/cessna-210d): 3 cases - [Cessna R172K](https://openairdocs.org/model/cessna-r172k): 3 cases - [Robinson Helicopter R44](https://openairdocs.org/model/robinson-helicopter-r44): 2 cases - [Piper PA 46-350P](https://openairdocs.org/model/piper-pa-46-350p): 2 cases - [Piper PA-28R-201T](https://openairdocs.org/model/piper-pa-28r-201t): 2 cases - [Cirrus Design SR22T](https://openairdocs.org/model/cirrus-design-sr22t): 2 cases - [Cessna 182P](https://openairdocs.org/model/cessna-182p): 2 cases - [Cessna 177RG](https://openairdocs.org/model/cessna-177rg): 2 cases ## Other findings in the same cases - [Oil](https://openairdocs.org/ntsb-findings/01071020) (Aircraft): 43 cases - [Recip engine power section](https://openairdocs.org/ntsb-findings/01058520) (Aircraft): 19 cases - [Scheduled/routine maintenance](https://openairdocs.org/ntsb-findings/02062010) (Personnel issues): 12 cases - [Recip eng cyl section](https://openairdocs.org/ntsb-findings/01058530) (Aircraft): 12 cases - [Installation](https://openairdocs.org/ntsb-findings/02062035) (Personnel issues): 10 cases - [Aircraft control](https://openairdocs.org/ntsb-findings/02063040) (Personnel issues): 9 cases - [Not determined, general](https://openairdocs.org/ntsb-findings/05000000) (Not determined): 8 cases - [Decision making/judgment](https://openairdocs.org/ntsb-findings/02041520) (Personnel issues): 7 cases - [Engine (reciprocating), general](https://openairdocs.org/ntsb-findings/01058500) (Aircraft): 7 cases - [Preflight inspection](https://openairdocs.org/ntsb-findings/02061510) (Personnel issues): 6 cases ## Newest cases - [NTSB ERA26LA348](https://openairdocs.org/ntsb/ERA26LA348), Sep 20, 2026: Hopwood Joseph R Zodiac (N601LL), Stockton, AL, substantial damage. Probable cause: A partial loss of engine power due to a missing exhaust clamp bolt and subsequent oil loss due to a damaged engine oil return line, which resulted in the pilot’s decision to perform an off-airport… - [NTSB ERA26LA176](https://openairdocs.org/ntsb/ERA26LA176), Apr 15, 2026: Icon A5 (N558BA), Levittown, PR, substantial damage. Probable cause: An oil line separation at a barbed fitting in an experimental airplane, which resulted in a total loss of engine power due to oil starvation. - [NTSB ERA25LA123](https://openairdocs.org/ntsb/ERA25LA123), Feb 20, 2025: Cessna 172C (N1609Y), Argyle, NY, substantial damage. Probable cause: The mechanic’s incorrect installation of the oil temperature gauge probe in the oil filter adapter and failure to test run the engine for oil leaks after the installation, which resulted in a total… - [NTSB WPR24LA135](https://openairdocs.org/ntsb/WPR24LA135), Apr 29, 2024: Bellanca 17-31ATC (N8800V), El Cajon, CA, substantial damage. Probable cause: Maintenance personnel’s improper installation of an engine-driven vacuum pump, which resulted in oil starvation to the engine and a subsequent total loss of engine power. Contributing to the accident… - [NTSB ERA24LA198](https://openairdocs.org/ntsb/ERA24LA198), Apr 29, 2024: Cessna 172 (N99442), Palatka, FL, substantial damage. Probable cause: The failure of the nose oil seal to remain secure in the engine crankcase, which resulted in a loss of engine oil and partial loss of engine power. - [NTSB WPR24LA121](https://openairdocs.org/ntsb/WPR24LA121), Apr 5, 2024: Kitfox Series 5 (N743JT), Yucca Grove, CA, substantial damage. Probable cause: The pilot’s improper repair of the oil sump, which resulted in a loss of oil pressure and collision with terrain during a precautionary landing. - [NTSB CEN24LA140](https://openairdocs.org/ntsb/CEN24LA140), Mar 25, 2024: Cessna T210 (N498TB), San Saba, TX, substantial damage. Probable cause: A total loss of engine power due to multiple connecting rod failures from oil starvation. - [NTSB ERA24LA095](https://openairdocs.org/ntsb/ERA24LA095), Jan 22, 2024: Cessna 210D (N3857Y), Paris, TN, substantial damage. Probable cause: The disruption of torque to the No 4 connecting rod journals, which resulted in a spun bearing and the subsequent total loss of engine power. - [NTSB WPR24FA054](https://openairdocs.org/ntsb/WPR24FA054), Dec 10, 2023: Beech A36 (N4171S), Topock, AZ, substantial damage, 1 fatal. Probable cause: The failure of the No. 4 connecting rod due to oil starvation, which resulted in a loss of engine power, inflight fire, and a subsequent off-airport emergency landing on rough desert terrain.… - [NTSB CEN24FA057](https://openairdocs.org/ntsb/CEN24FA057), Dec 10, 2023: Beech A23-24 (N6945Q), Oklahoma City, OK, destroyed, 2 fatal. Probable cause: A total loss of engine power due to multiple connecting rod failures from oil starvation associated with an extensive before takeoff oil system leak, the source of which could not be identified due… 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.