# NTSB investigations: Nacelles/pylons structure 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 ERA21LA379](https://openairdocs.org/ntsb/ERA21LA379.md): Hawker Beechcraft 400A · Charleston, SC · Accident · No injuries · Class 3 · Limited · Final report · Sep 14, 2021 · N100FN · Substantial damage > The in-flight separation of the left engine’s four-panel cowling for reasons that could not be determined based on the available evidence. - [NTSB ENG21LA013](https://openairdocs.org/ntsb/ENG21LA013.md): Boeing 767-338 · Ontario, CA · Incident · Class 3 · Limited · Final report · Jan 29, 2021 · N363CM · Minor damage > The fatigue fracture and liberation of two airfoils from a low pressure turbine stage 5 nozzle segment that impacted and damaged the downstream low pressure stage 5 blades creating an initial imbalance load in the engine’s low pressure turbine rotor… - [NTSB ERA19FA118](https://openairdocs.org/ntsb/ERA19FA118.md): Hughes 369 · Talking Rock, GA · Accident · 1 fatal · Class 3 · Field · Final report · Mar 5, 2019 · N89ZC · Substantial damage > A fatigue failure of the overrunning clutch subassembly due to abnormal bending loads due to cracks on the center engine mount, which resulted in an inflight loss of power. Contributing to the accident was the helicopter's low altitude and airspeed when the… - [NTSB DCA18MA142](https://openairdocs.org/ntsb/DCA18MA142.md): Boeing 737 7H4 · Philadelphia, PA · Accident · 1 fatal · Class 1 · Major · Final report · Apr 17, 2018 · N772SW · Substantial damage > A low-cycle fatigue crack in the dovetail of fan blade No. 13, which resulted in the fan blade separating in flight and impacting the engine fan case at a location that was critical to the structural integrity and performance of the fan cowl structure. This… - [NTSB DCA17LA182](https://openairdocs.org/ntsb/DCA17LA182.md): Bombardier CL 600 2C10 · Denver, CO · Accident · No injuries · Class 3 · Limited · Final report · Jul 2, 2017 · N796SK · Substantial damage > The fuel supply tube fitting pulling out of the left engine’s operability bleed valve (OBV) during the landing rollout, allowing fuel to leak and contact hot engine cases, which ignited a fire that caused thermal damage to the engine pylon. Contributing to… - [NTSB DCA16FA217](https://openairdocs.org/ntsb/DCA16FA217.md): Boeing 737-700 · Pensacola, FL · Accident · No injuries · Field investigation · Final report · Aug 27, 2016 · N766SW · Substantial damage > A low-cycle fatigue crack in the dovetail of fan blade No. 23, which resulted in the fan blade separating in flight and impacting the fan case. This impact caused the fan blade to fracture into fragments that traveled farther than expected into the inlet,… - [NTSB CEN13FA121](https://openairdocs.org/ntsb/CEN13FA121.md): Eurocopter EC130 B4 · Seminole, OK · Accident · Serious injuries · Field investigation · Final report · Jan 2, 2013 · N334AM · Substantial damage > The loss of engine power due to ice ingestion. Contributing to the accident was maintenance personnel’s delayed decision to install the helicopter's engine inlet cover until after the engine had been exposed to moisture and freezing temperatures and their… - [NTSB ERA12CA198](https://openairdocs.org/ntsb/ERA12CA198.md): Lester Robert E KR-2 · Boca Raton, FL · Accident · No injuries · Data collection · Final report · Mar 1, 2012 · N1701L · Substantial damage > The failure of the airplane’s engine air inlet system resulting in a total loss of engine power. - [NTSB DCA11PA075](https://openairdocs.org/ntsb/DCA11PA075.md): Boeing 707-321B · Point Mugu, CA · Accident · Minor injuries · Final report · May 19, 2011 · N707AR · Substantial damage > the failure of a midspar fitting, which was susceptible to fatigue cracking and should have been replaced with a newer, more fatigue-resistant version of the fitting as required by an airworthiness directive. Also causal was an erroneous maintenance entry… - [NTSB ERA10CA495](https://openairdocs.org/ntsb/ERA10CA495.md): Skykits Savannah · Springville, TN · Accident · No injuries · Data collection · Final report · Sep 20, 2010 · N63XT · Substantial damage > Collision with an unknown object during landing. - [NTSB ENG10IA026](https://openairdocs.org/ntsb/ENG10IA026.md): Airbus A320 · Newark, NJ · Incident · No injuries · Incident investigation · Final report · Apr 5, 2010 · N535JB · Minor damage > The separation of both halves of the left engine fan cowl assembly due to improper latching and locking of the all the fan cowl latches. The cause of the improper latching and locking of the fan cowls was due to the failure of the mechanic to unstow and… ## 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", '010354')) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb-findings/010354/cases --- 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.