# NTSB investigations: Eng oil sys (airframe furnish)

NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports.

Page 1 of 2 · 60 cases

## Latest cases

- [NTSB ERA25LA157](https://openairdocs.org/ntsb/ERA25LA157.md): Beech E33 · Lenoir, NC · Accident · No injuries · Class 3 · Limited · Final report · Feb 25, 2025 · N7697N · Substantial damage
  > The mechanic’s inadequate annual inspection of the airplane and failure to comply with an applicable airworthiness directive, which resulted in a total loss of engine power due to oil starvation.
- [NTSB CEN25FA056](https://openairdocs.org/ntsb/CEN25FA056.md): Zenith Zodiac CH601 · Columbia, IL · Accident · Serious injuries · Class 3 · Field · Final report · Dec 8, 2024 · N9853M · Destroyed
  > The pilot’s failure to secure the engine oil filter following maintenance, which resulted in oil starvation, a total loss of engine power, and impact with terrain.
- [NTSB CEN25LA053](https://openairdocs.org/ntsb/CEN25LA053.md): Piper PA-28R-200 · Boscobel, WI · Accident · No injuries · Class 3 · Limited · Final report · Dec 2, 2024 · N41997 · Substantial damage
  > The ice obstruction of the engine oil breather tube and alternate air outlet, which resulted in a failure of the crankcase oil seal and loss of engine oil. Contributing to the accident was the incorrect engine oil breather tube installed in the airplane by…
- [NTSB ERA24LA289](https://openairdocs.org/ntsb/ERA24LA289.md): Cessna 172 · Lewiston Woodville, NC · Accident · No injuries · Class 3 · Limited · Final report · Jun 29, 2024 · N46118 · Substantial damage
  > The obstruction of the engine’s cooling system by foreign object debris (residential-type insulation), which resulted in smoke, an elevated oil temperature, and a subsequent off-airport landing on unsuitable terrain.
- [NTSB CEN24FA212](https://openairdocs.org/ntsb/CEN24FA212.md): Beech V35A · Arvada, CO · Accident · 1 fatal · Class 3 · Field · Final report · Jun 7, 2024 · N150WR · Destroyed
  > A total loss of engine power due to oil starvation as a result of loose turbocharger oil line fittings.
- [NTSB CEN24LA211](https://openairdocs.org/ntsb/CEN24LA211.md): Cessna 172RG · Chandeleur Island, LA · Accident · No injuries · Class 3 · Limited · Final report · May 22, 2024 · N751DW · Substantial damage
  > A fatigue failure of the engine oil pressure line, which resulted in the loss of engine oil during the flight and subsequent damage to the nose landing gear support structure during the precautionary landing.
- [NTSB CEN24LA152](https://openairdocs.org/ntsb/CEN24LA152.md): Bellanca 17-30A · Galveston, TX · Accident · No injuries · Class 4 · Limited · Final report · Apr 5, 2024 · N9996V · Substantial damage
  > Maintenance personnel’s failure to properly secure the oil filter adapter when replacing the oil filter adapter gasket which resulted in the filter becoming loose, resulting in the loss of engine oil, and the subsequent total loss of engine power.
- [NTSB WPR24LA098](https://openairdocs.org/ntsb/WPR24LA098.md): Cessna 182A · Weippe, ID · Accident · No injuries · Class 4 · Limited · Final report · Feb 22, 2024 · N6323B · Substantial damage
  > The pilot’s failure to secure the oil filler cap during the preflight inspection, which resulted in a precautionary landing on the soft surface and subsequent nose over.
- [NTSB DCA24LA330](https://openairdocs.org/ntsb/DCA24LA330.md): Boeing 737-8 · Kenner, LA · Incident · Class 2 · Limited · Final report · Dec 20, 2023 · N8830Q · Minor damage
  > A partial loss of engine power due to bird ingestion in the No. 1 (left) engine, which resulted in the activation of the load reduction device to prevent vibration. The load reduction device activation resulted in smoke and fumes entering the cockpit.
- [NTSB ERA23FA137](https://openairdocs.org/ntsb/ERA23FA137.md): Piper PA-28-161 · Lindenhurst, NY · Accident · 1 fatal · Class 3 · Field · Final report · Mar 5, 2023 · N8149R · Destroyed
  > An in-flight fire due to a compromised oil pressure line fitting, which resulted in a collision with terrain during a subsequent emergency landing.
- [NTSB CEN23FA079](https://openairdocs.org/ntsb/CEN23FA079.md): Piper PA-32-301T · Kingfisher, OK · Accident · 2 fatal · Class 3 · Field · Final report · Jan 16, 2023 · N8266D · Destroyed
  > An oil leak of undetermined origin that resulted in an in-flight engine compartment fire and subsequent loss of airplane control.
- [NTSB ERA23LA058](https://openairdocs.org/ntsb/ERA23LA058.md): Antonov AN2 · Opa-Locka, FL · Accident · No injuries · Class 3 · Limited · Final report · Nov 14, 2022 · CU-A1885 · Substantial damage
  > The pilot's failure to properly configure the cowl flaps and oil cooler shutters, which resulted in a total loss of engine power due to overheating of the engine. Contributing to the accident was the pilot's decision to operate the airplane in with an…
- [NTSB CEN22LA251](https://openairdocs.org/ntsb/CEN22LA251.md): Trojan TA16 · Ray, MI · Accident · No injuries · Class 3 · Limited · Final report · Jun 2, 2022 · N36YR · Substantial damage
  > A lack of lubrication and inadequate cooling, which resulted in internal damage to the engine and a subsequent total loss of engine power.
- [NTSB ERA22LA117](https://openairdocs.org/ntsb/ERA22LA117.md): Hughes 369D · Bel Air, MD · Accident · No injuries · Class 3 · Limited · Final report · Feb 9, 2022 · N9159F · Substantial damage
  > A loss of engine power due to bearing failures in the turbine section resulting from a fatigue fracture of the oil supply line that fed oil to the Nos. 6 and 7 bearings. The oil line failure led to rapid deterioration of the bearings from oil starvation.…
- [NTSB ERA22LA011](https://openairdocs.org/ntsb/ERA22LA011.md): Flight Design Ctls · Greenville, SC · Accident · Minor injuries · Class 3 · Limited · Final report · Oct 10, 2021 · N121YT · Substantial damage
  > A total loss of engine power resulting from the in-flight disconnection of oil hoses from the oil thermostat.
- [NTSB WPR21LA173](https://openairdocs.org/ntsb/WPR21LA173.md): Flight Design Ctsw · Santa Fe, NM · Accident · Minor injuries · Class 3 · Limited · Final report · Apr 22, 2021 · N378CT · Substantial damage
  > A leak in the oil line that supplied the engine with oil, which resulted in oil exhaustion and the total loss of engine power. Contributing to the accident was the routing of the oil line to close to the exhaust manifold.
- [NTSB CEN21LA034](https://openairdocs.org/ntsb/CEN21LA034.md): Cessna 182 · Lebanon, OH · Accident · No injuries · Class 3 · Limited · Final report · Oct 28, 2020 · N3537C · Substantial damage
  > Improper maintenance that resulted in a blocked crankcase breather port and a subsequent total loss of engine power.
- [NTSB CEN20LA301](https://openairdocs.org/ntsb/CEN20LA301.md): Vans RV4 · Idabel, OK · Accident · No injuries · Class 3 · Limited · Final report · Jul 22, 2020 · N54WP · Substantial damage
  > The pilot’s improper installation of an oil line, resulting in the loss of oil and subsequent total loss of engine power.
- [NTSB CEN19LA159](https://openairdocs.org/ntsb/CEN19LA159.md): Lancair LC41 · Cleburne, TX · Accident · No injuries · Class 3 · Limited · Final report · May 30, 2019 · N2514F · Substantial damage
  > A total loss of engine power due to oil starvation as the result of the oil pressure switch failure due to a manufacturing defect.
- [NTSB ANC19LA011](https://openairdocs.org/ntsb/ANC19LA011.md): Piper PA-22-150 · Anchorage, AK · Accident · Minor injuries · Class 3 · Limited · Final report · Jan 22, 2019 · N7640D · Substantial damage
  > A loss of engine power due to oil starvation as the result of a loose B-nut fitting on the engine oil cooler, resulting in a forced landing to a soft, snow-covered surface, and a subsequent nose over.
- [NTSB ERA19LA057](https://openairdocs.org/ntsb/ERA19LA057.md): Cirrus SR22 · Kennesaw, GA · Accident · Minor injuries · Limited investigation · Final report · Nov 29, 2018 · N597CP · Substantial damage
  > The total loss of engine power due to the interruption of oil circulation for reasons that could not be determined based on the available evidence.
- [NTSB CEN18LA174](https://openairdocs.org/ntsb/CEN18LA174.md): Cessna 177 · Fort Wayne, IN · Accident · No injuries · Limited investigation · Final report · May 15, 2018 · N9058F · Substantial damage
  > The failure of the oil cooler due to a defect in the brazed joint, which resulted in a loss of engine power due to oil starvation.
- [NTSB WPR18LA050](https://openairdocs.org/ntsb/WPR18LA050.md): Gray Jim Robert Exec · Caldwell, ID · Accident · No injuries · Limited investigation · Final report · Dec 17, 2017 · N716JB · Substantial damage
  > Failure of the oil pressure gauge line, which resulted in oil exhaustion and a total loss of engine power.
- [NTSB ANC18LA006](https://openairdocs.org/ntsb/ANC18LA006.md): Piper PA 32R-300 · Dawsonville, GA · Accident · Serious injuries · Limited investigation · Final report · Oct 30, 2017 · N4213F · Substantial damage
  > The failure of the pilot, who was not a certified mechanic, to tighten the B-nut on a remotely mounted oil filter line, which resulted in oil exhaustion, a total loss of oil pressure, and a subsequent total loss of engine power.
- [NTSB WPR17LA216](https://openairdocs.org/ntsb/WPR17LA216.md): Cessna 172P · Tamuning · Accident · No injuries · Limited investigation · Final report · Sep 25, 2017 · N5448K · Substantial damage
  > The pilot's inadequate preflight inspection, which resulted in oil exhaustion and a subsequent total loss of engine power during cruise flight.
- [NTSB ERA17LA338](https://openairdocs.org/ntsb/ERA17LA338.md): Parks Richard A Starduster SA 100 · Southfields, NY · Accident · No injuries · Limited investigation · Final report · Sep 15, 2017 · N1356W · Substantial damage
  > A loose oil line that allowed oil to drip on the exhaust system, which resulted in smoke during cruise flight and a subsequent precautionary landing.
- [NTSB CEN17FA167](https://openairdocs.org/ntsb/CEN17FA167.md): Cessna 421C · Huntsville, TX · Accident · 1 fatal · Field investigation · Final report · Apr 25, 2017 · N421TK · Destroyed
  > The pilot's failure to identify the alternate runway, to perform a timely precautionary landing, and to maintain airplane control. Contributing to the accident was the failure of the left engine due to oil starvation for reasons that could not be determined…
- [NTSB ANC17LA006](https://openairdocs.org/ntsb/ANC17LA006.md): Piper PA32R · Bethel, AK · Accident · Minor injuries · Limited investigation · Final report · Nov 12, 2016 · N9084J · Substantial damage
  > A total loss of engine power due to oil starvation, which resulted from an oil cooler leak at a fractured brazed seam.
- [NTSB WPR15LA170](https://openairdocs.org/ntsb/WPR15LA170.md): Duenas Pulsar III · Hurricane, UT · Accident · Serious injuries · Limited investigation · Final report · May 29, 2015 · N747N · Substantial damage
  > An elevated oil temperature and subsequent total loss of engine power for reasons that could not be determined based on the available information.
- [NTSB WPR15LA085](https://openairdocs.org/ntsb/WPR15LA085.md): Cubcrafters CC11-160 · San Luis Obispo, CA · Accident · No injuries · Limited investigation · Final report · Jan 16, 2015 · N232LT · Substantial damage
  > The pilot's inadequate instrument scan during cruise flight, which resulted in his failure to notice a loss of engine oil pressure. Contributing to the accident was the failure of the oil pressure transducer supply line, which resulted in oil exhaustion and a…
- [NTSB ERA15LA062](https://openairdocs.org/ntsb/ERA15LA062.md): Cirrus Design SR22T · Hampton, SC · Accident · Serious injuries · Limited investigation · Final report · Nov 28, 2014 · N227RR · Substantial damage
  > The pilot’s improper decision to descend the airplane at an airspeed greater than the published best glide speed following an erroneous oil pressure indication, which resulted in an off-airport landing. Contributing to the erroneous oil pressure indication…
- [NTSB WPR14LA207](https://openairdocs.org/ntsb/WPR14LA207.md): Cessna 182 · Arvin, CA · Accident · Minor injuries · Limited investigation · Final report · May 24, 2014 · N97038 · Substantial damage
  > The pilot’s failure to reconnect the air-oil separator return line after completing an oil change, which resulted in a total loss of engine power due to oil starvation.
- [NTSB CEN14CA106](https://openairdocs.org/ntsb/CEN14CA106.md): Cessna P210N · Pagosa Springs, CO · Accident · Minor injuries · Data collection · Final report · Jan 8, 2014 · N4817K · Substantial damage
  > The pilot's inadequate preflight inspection which led to a loss of oil pressure and partial loss of engine power on takeoff. Contributing to the accident was the pilot's failure to check the security of the oil filler cap prior to the flight.
- [NTSB WPR13LA304](https://openairdocs.org/ntsb/WPR13LA304.md): Dorman Bakeng · Garden Valley, ID · Accident · No injuries · Limited investigation · Final report · Jul 2, 2013 · N39796 · Substantial damage
  > A mechanical failure of the oil cooler, which resulted in a complete loss of oil and engine power.
- [NTSB ERA13FA256](https://openairdocs.org/ntsb/ERA13FA256.md): Piper PA-32R-300 · Macon, GA · Accident · 2 fatal · Field investigation · Final report · May 27, 2013 · N4489F · Destroyed
  > A total loss of engine power due to oil starvation for reasons that could not be determined due to extensive postcrash fire and heat damage to the engine components.
- [NTSB WPR13LA085](https://openairdocs.org/ntsb/WPR13LA085.md): Jeremiah Jackson Vans RV-10 · Julian, CA · Accident · Minor injuries · Limited investigation · Final report · Jan 5, 2013 · N262NJ · Substantial damage
  > A loss of engine power due to oil starvation as a result of a disconnected oil line. Contributing to the accident was an insufficiently tightened oil line fitting.
- [NTSB CEN13LA072](https://openairdocs.org/ntsb/CEN13LA072.md): Beech S35 · DeRidder, LA · Accident · Serious injuries · Limited investigation · Final report · Nov 25, 2012 · N322D · Substantial damage
  > A total loss of engine power due to oil starvation after the oil filler cap separated from the oil filler tube during flight due to corrosion. Contributing to the accident was the pilot's failure to maintain airspeed during low altitude operations, which…
- [NTSB CEN12LA455](https://openairdocs.org/ntsb/CEN12LA455.md): Cessna 175A · Shelby, IL · Accident · No injuries · Limited investigation · Final report · Jul 17, 2012 · N7003E · Substantial damage
  > The loss of engine power due to oil starvation for reasons that could not be determined because engine examinations revealed no malfunctions or failures that would have led to oil starvation.
- [NTSB CEN12LA508](https://openairdocs.org/ntsb/CEN12LA508.md): Cessna 172M · South Wayne, WI · Accident · Serious injuries · Limited investigation · Final report · Jul 10, 2012 · N12504 · Substantial damage
  > Internal engine component failures, which resulted from oil starvation due to debris in the oil system.
- [NTSB CEN12LA357](https://openairdocs.org/ntsb/CEN12LA357.md): Rockwell International S-2R · Howard, SD · Accident · No injuries · Limited investigation · Final report · May 23, 2012 · N8421V · Substantial damage
  > A fractured fabricated aluminum oil line, which resulted in oil exhaustion followed by a forced landing.
- [NTSB CEN12LA111](https://openairdocs.org/ntsb/CEN12LA111.md): Curtiss Wright P40M · Batavia, OH · Accident · Minor injuries · Limited investigation · Final report · Dec 8, 2011 · N5813 · Substantial damage
  > A loss of engine power due to failure of the engine oil cooler and subsequent oil starvation to the engine.
- [NTSB WPR11LA363](https://openairdocs.org/ntsb/WPR11LA363.md): Cessna 340A · Fullerton, CA · Accident · No injuries · Limited investigation · Final report · Jun 1, 2011 · N340BG · Substantial damage
  > The pilot's inability to maintain directional control during landing due to the left brake's degraded performance due to oil contamination, which resulted from the fatigue failure of an oil line component.
- [NTSB WPR11LA070](https://openairdocs.org/ntsb/WPR11LA070.md): Bellanca 7KCAB · Corona, CA · Accident · Minor injuries · Limited investigation · Final report · Dec 2, 2010 · N11858 · Substantial damage
  > The total loss of engine power due to oil exhaustion as a result of a broken oil line.
- [NTSB CEN11LA005](https://openairdocs.org/ntsb/CEN11LA005.md): Maule MXT-7-180A · Magnolia, AR · Accident · No injuries · Limited investigation · Final report · Oct 2, 2010 · N152HS · Substantial damage
  > The mechanic's failure to properly install an oil drain line after he replaced a cylinder, which caused the engine to seize in flight due to a lack of lubrication.
- [NTSB CEN10LA449](https://openairdocs.org/ntsb/CEN10LA449.md): Cessna 172P · Santa Fe, NM · Accident · No injuries · Limited investigation · Final report · Aug 1, 2010 · N52708 · Substantial damage
  > A total loss of engine power following a loss of oil pressure for undetermined reasons.
- [NTSB ERA10LA335](https://openairdocs.org/ntsb/ERA10LA335.md): Cessna 210D · Babylon, NY · Accident · Minor injuries · Limited investigation · Final report · Jun 25, 2010 · N3973Y · Substantial damage
  > The loss of engine power due to the failure of the oil filter gasket and the subsequent engine oil depletion.
- [NTSB WPR10CA181](https://openairdocs.org/ntsb/WPR10CA181.md): Morrison Joseph Q2 · Frazier Park, CA · Accident · No injuries · Data collection · Final report · Mar 26, 2010 · N142BP · Substantial damage
  > A partial loss of engine power likely due to the failure of the oil pump.
- [NTSB CEN10CA172](https://openairdocs.org/ntsb/CEN10CA172.md): Kinney Kevin Zenith 601XL · Warren, OH · Accident · No injuries · Data collection · Final report · Mar 20, 2010 · N61601 · Destroyed
  > A total loss of engine power due to the failure of an oil hose due to improper installation of the hose.
- [NTSB ERA10LA100](https://openairdocs.org/ntsb/ERA10LA100.md): Fpna A-22 Valor · Hunting Island, SC · Accident · No injuries · Limited investigation · Final report · Dec 23, 2009 · N721FP · Substantial damage
  > Maintenance personnel's inadequate inspection of the oil system's fittings during a routine oil servicing, which resulted in oil starvation due to a loose and/or detached oil line B-nut fitting that led to the engine seizing while in flight.
- [NTSB WPR09LA422](https://openairdocs.org/ntsb/WPR09LA422.md): Cessna 210K · Show Low, AZ · Accident · No injuries · Limited investigation · Final report · Aug 27, 2009 · N4600Q · Substantial damage
  > A total loss of engine power due to the displaced oil filter adapter gasket, which resulted in an oil leak and oil exhaustion. Contributing to the accident was the unsuitable terrain for a forced landing.

Next page: https://openairdocs.org/ntsb-findings/010579/cases.md?page=2

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT c."ntsbNumber", c."eventDate", c."eventType", c."eventCity", c."eventStateOrRegion", a.n_number, a."aircraftMake", a."aircraftModel", c."highestInjuryLevel", c."totalFatal", c."completionStatus", c.report_url
FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c."mKey" AND a.position = 1
WHERE c."mKey" IN (SELECT f.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_findings.parquet' f WHERE starts_with(f."findingCode", '010579'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-findings/010579/cases

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