# NTSB investigations: Lycoming IO-360-A1B6D: Loss of engine power (total) 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. ## Latest cases - [NTSB WPR25FA146](https://openairdocs.org/ntsb/WPR25FA146.md): Cessna 177RG · Grass Valley, CA · Accident · 1 fatal · Class 3 · Field · Final report · May 1, 2025 · N52156 · Substantial damage > An improperly tightened B-nut fitting at the fuel flow divider, which resulted in a fuel leak and loss of engine power due to fuel starvation, and the inadequate maintenance inspection, which failed to detect and correct the discrepancy. - [NTSB ERA23LA197](https://openairdocs.org/ntsb/ERA23LA197.md): Cessna 177RG · Crestview, FL · Accident · Serious injuries · Class 3 · Limited · Final report · Apr 14, 2023 · N7542V · Substantial damage > The total loss of engine power due to the loosening and separation of the No. 1 connecting rod cap nuts in flight, resulting in catastrophic internal engine damage. Contributing to the accident was the pilot/owner’s failure to comply with the engine… - [NTSB WPR22LA287](https://openairdocs.org/ntsb/WPR22LA287.md): Cessna 177RG · Livermore, CA · Accident · No injuries · Class 3 · Limited · Final report · Jul 30, 2022 · N2591V · Substantial damage > The total loss of engine power due to an inadequately maintained fuel injection servo. - [NTSB GAA19CA166](https://openairdocs.org/ntsb/GAA19CA166.md): Cessna 177RG · Land O' Lakes, WI · Accident · Minor injuries · Data collection · Final report · Mar 9, 2019 · N52047 · Substantial damage > The pilot's improper fuel planning, which resulted in fuel exhaustion and the subsequent total loss of engine power. - [NTSB CEN19LA091](https://openairdocs.org/ntsb/CEN19LA091.md): Van's RV-8 · Horseshoe Bay, TX · Accident · Serious injuries · Class 3 · Limited · Final report · Feb 15, 2019 · N737MC · Substantial damage > A total loss of engine power for reasons that could not be determined based on the available information. - [NTSB WPR17LA142](https://openairdocs.org/ntsb/WPR17LA142.md): Cessna 177RG · Vacaville, CA · Accident · Minor injuries · Limited investigation · Final report · Jul 7, 2017 · N7532V · Substantial damage > The total loss of engine power during initial climb for reasons that could not be determined because postaccident examination of the engine revealed no mechanical failure or malfunction that would have precluded normal operation. - [NTSB CEN16LA391](https://openairdocs.org/ntsb/CEN16LA391.md): Cessna 177RG · Cloquet, MN · Accident · No injuries · Limited investigation · Final report · Sep 30, 2016 · N1528H · Substantial damage > A lack of lubrication in the engine for reasons that could not be determined based on the available information, which resulted in a failure of the No. 4 connecting rod and a subsequent total loss of engine power. - [NTSB CEN13LA076](https://openairdocs.org/ntsb/CEN13LA076.md): Cessna 177RG · Lansing, MI · Accident · No injuries · Limited investigation · Final report · Nov 28, 2012 · N1912Q · Substantial damage > A loss of engine power due to the loss of fuel flow through the airplane's fuel tank selector valve. - [NTSB ERA12FA084](https://openairdocs.org/ntsb/ERA12FA084.md): Cessna 177RG · Tallapoosa, GA · Accident · 3 fatal · Field investigation · Final report · Nov 26, 2011 · N5AW · Substantial damage > The failure of the No. 2 rod end cap bolt, which resulted in a total loss of engine power. - [NTSB WPR11FA186](https://openairdocs.org/ntsb/WPR11FA186.md): Cessna 177RG · Gila Bend, AZ · Accident · No injuries · Field investigation · Final report · Apr 5, 2011 · N2637V · Substantial damage > A total loss of engine power during cruise flight due to both sets of magneto points failing to open as a result of excessive wear of the magneto cam followers. - [NTSB ERA11CA047](https://openairdocs.org/ntsb/ERA11CA047.md): Cessna 177RG · Bedford, KY · Accident · No injuries · Data collection · Final report · Oct 28, 2010 · N33224 · Substantial damage > The mechanic's failure to properly secure a fuel line when it was reinstalled during an engine inspection. - [NTSB CEN10LA306](https://openairdocs.org/ntsb/CEN10LA306.md): Cessna 177RG · Marietta, OH · Accident · No injuries · Limited investigation · Final report · Jun 7, 2010 · N2016Q · Substantial damage > The total loss of engine power due to the fatigue failure of the No. 2 cylinder attachment fasteners as a result of improper engine overhaul practices. - [NTSB CEN09LA487](https://openairdocs.org/ntsb/CEN09LA487.md): Cessna 177RG · Black River Falls, WI · Accident · Minor injuries · Limited investigation · Final report · Jul 31, 2009 · N2108Q · Substantial damage > The loss of engine power during cruise due to the number two cylinder piston connecting rod failure for undetermined reasons. - [NTSB ERA09FA343](https://openairdocs.org/ntsb/ERA09FA343.md): Cessna 177 RG · Gilford, NH · Accident · 1 fatal · Field investigation · Final report · Jun 13, 2009 · N52670 · Substantial damage > A loss of engine power due to oil exhaustion from the fracture of the nipple for the engine oil cooler return line. Contributing to the accident was the mechanic's signoff and release of the airplane without performing the required engine run-up following an… ## 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 x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('41593') AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' e WHERE e.case_mkey = x.case_mkey AND e.aircrafts_position = x.position AND e."isDefiningEvent" AND e."tier2Number" = '341')) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb-events/341/cases?engine=41593 --- 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.