# NTSB investigations: Air conditioning system 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 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 CEN21LA268](https://openairdocs.org/ntsb/CEN21LA268.md): Cessna 172S · Saint James, LA · Accident · No injuries · Class 4 · Limited · Final report · Jun 10, 2021 · N365CP · Substantial damage > The in-flight fatigue failure of an air-conditioning system hose which resulted in a precautionary landing and impact with a road sign. - [NTSB CEN21LA030](https://openairdocs.org/ntsb/CEN21LA030.md): Cessna 210 · Lubbock, TX · Accident · 1 fatal · Class 3 · Limited · Final report · Oct 26, 2020 · N9622T · Destroyed > The pilot’s improper decision to fly into icing conditions with an airplane that was not equipped for icing, which led to structural icing and a subsequent loss of airplane control, and the pilot’s impairment from carbon monoxide poisoning due to a cracked… - [NTSB ERA19TA211](https://openairdocs.org/ntsb/ERA19TA211.md): Cessna 208 · Plant City, FL · Accident · No injuries · Class 3 · Final report · Jun 29, 2019 · N80JF · Substantial damage > The pilot's improper landing flare due to reduced visibility from a foggy windshield and his failure to use the airplane’s windshield defrost system, which resulted in a hard landing and subsequent nose landing gear collapse. - [NTSB CEN17FA045](https://openairdocs.org/ntsb/CEN17FA045.md): Cessna 340 · Fargo, ND · Accident · 1 fatal · Field investigation · Final report · Dec 1, 2016 · N123KK · Destroyed > The loose fuel fitting on the combustion heater that leaked a lean fuel-air mixture into the nose baggage compartment. The mixture was most likely ignited by the combustion heater, blowing off the nose baggage compartment doors and starting an in-flight fire. - [NTSB CEN16CA359](https://openairdocs.org/ntsb/CEN16CA359.md): Beech 58 · Wichita Falls, TX · Accident · No injuries · Data collection · Final report · Aug 26, 2016 · N15MD · Substantial damage > The incorrect maintenance of the airplane's ventilation system which resulted in an obstruction of the elevator control system. - [NTSB CEN16LA197](https://openairdocs.org/ntsb/CEN16LA197.md): Cessna 501 · Texarkana, AR · Accident · Minor injuries · Limited investigation · Final report · May 24, 2016 · N804ST · Substantial damage > The pilot's failure to use supplemental oxygen as required during high-altitude flight, which resulted in his loss of consciousness following a loss of cabin pressurization. Contributing to the accident was the separation of the air conditioning system's… - [NTSB ERA15LA328](https://openairdocs.org/ntsb/ERA15LA328.md): Gulfstream Aerospace G IV · Caribbean Sea, A1 · Accident · No injuries · Limited investigation · Final report · Apr 10, 2015 · N450KK · Substantial damage > The in-flight failure of the cabin pressurization relief/safety valve (CPRV) due to an obstruction of the CPRV static port, which allowed the airplane to overpressurize. The reason for the initial overpressurization condition could not be determined. - [NTSB ERA14LA424](https://openairdocs.org/ntsb/ERA14LA424.md): Socata TBM 700 · Caribbean Sea, A1 · Accident · 2 fatal · Limited investigation · Final report · Sep 5, 2014 · N900KN · Destroyed > The design of the cabin pressurization system, which made it prone to unnecessary shutdown, combined with a checklist design that prioritized troubleshooting over ensuring that the pilot was sufficiently protected from hypoxia. This resulted in a loss of… - [NTSB CEN14LA159](https://openairdocs.org/ntsb/CEN14LA159.md): Cessna 310Q · Wapakoneta, OH · Accident · No injuries · Limited investigation · Final report · Mar 8, 2014 · N69980 · Substantial damage > A fire due to a fuel leak of the cabin heater system. Contributing to the accident was the inadequate maintenance of the airplane, which failed to identify leaks in the heater system. - [NTSB CEN12LA457](https://openairdocs.org/ntsb/CEN12LA457.md): Bombardier CL-600-2C10 · Peoria, IL · Accident · Serious injuries · Limited investigation · Final report · Jul 19, 2012 · N502AE · No damage > The emergency ground egress during which a passenger broke her ankle. Contributing to the accident was the failure of the environmental system, which allowed smoke from a nearby house fire to enter the airplane. - [NTSB CEN12FA290](https://openairdocs.org/ntsb/CEN12FA290.md): Cessna 401 · Chanute, KS · Accident · 4 fatal · Field investigation · Final report · May 11, 2012 · N9DM · Substantial damage > The malfunction of the cabin heater, which resulted in an inflight fire and smoke in the airplane. Contributing to the accident was the pilot’s lack of understanding concerning the status of the airplane's heater system following and earlier overheat event… - [NTSB CEN09FA087](https://openairdocs.org/ntsb/CEN09FA087.md): Beech C90 · Rocksprings, TX · Accident · 1 fatal · Field investigation · Final report · Dec 14, 2008 · N43KM · Substantial damage > The pilot's failure to properly configure the pressurization controls, resulting in his impairment and subsequent incapacitation due to hypoxia. - [NTSB DFW08LA097](https://openairdocs.org/ntsb/DFW08LA097.md): Raytheon B200 · Taylor, TX · Accident · 1 fatal · Limited investigation · Final report · Apr 10, 2008 · N300FL · Minor damage > The failure of the pilot and mechanic to ensure that the airplane was depressurized prior to actuating the door. Contributing to the accident was the failure of the vacuum system. ## 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", '010221')) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb-findings/010221/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.