# Traffic congestion - Type: NTSB finding subsection - Path: [Environmental issues](https://openairdocs.org/ntsb-findings/03) › [Operating environment](https://openairdocs.org/ntsb-findings/0301) › [Air traffic/operating proc](https://openairdocs.org/ntsb-findings/030140) › Traffic congestion - NTSB code: 03014070 - Cases: 9 - In the probable cause: 4 - Fatal cases: 1 - All cases: https://openairdocs.org/ntsb-findings/03014070/cases.md - Cases with it in the probable cause: https://openairdocs.org/ntsb-findings/03014070/cases.md?cause=1 - Page: https://openairdocs.org/ntsb-findings/03014070 ## Cases per year (in the probable cause / all) - 2009: 0 / 1 - 2010: 0 / 1 - 2011: 1 / 2 - 2013: 0 / 1 - 2017: 1 / 1 - 2019: 1 / 1 - 2021: 0 / 1 - 2025: 1 / 1 ## Defining events in these cases - [Midair collision](https://openairdocs.org/ntsb-events/250): 2 cases - [Ground collision](https://openairdocs.org/ntsb-events/200): 2 cases - [Collision during takeoff/land](https://openairdocs.org/ntsb-events/490): 1 cases - [Loss of control in flight](https://openairdocs.org/ntsb-events/240): 1 cases - [Fuel exhaustion](https://openairdocs.org/ntsb-events/192): 1 cases - [Controlled flight into terr/obj (CFIT)](https://openairdocs.org/ntsb-events/120): 1 cases - [Hard landing](https://openairdocs.org/ntsb-events/092): 1 cases ## Aircraft models (registry) - [Pdps Pzl-Bielsko SZD-59](https://openairdocs.org/model/pdps-pzl-bielsko-szd-59): 1 cases - [Raytheon 390](https://openairdocs.org/model/raytheon-390): 1 cases - [Airbus A321-231](https://openairdocs.org/model/airbus-a321-231): 1 cases - [Fairchild M-62A-3](https://openairdocs.org/model/fairchild-m-62a-3): 1 cases - [Cessna T207A](https://openairdocs.org/model/cessna-t207a): 1 cases - [Cessna U206](https://openairdocs.org/model/cessna-u206): 1 cases - [Bombardier CL-600-2C10](https://openairdocs.org/model/bombardier-cl-600-2c10): 1 cases - [Bombardier CL-600-2B19](https://openairdocs.org/model/bombardier-cl-600-2b19): 1 cases - [Seavolt Jason E RV-8](https://openairdocs.org/model/seavolt-jason-e-rv-8): 1 cases - [Gray James W RV-8](https://openairdocs.org/model/gray-james-w-rv-8): 1 cases ## Other findings in the same cases - [Monitoring environment](https://openairdocs.org/ntsb-findings/02021545) (Personnel issues): 2 cases - [Adequacy of safety program](https://openairdocs.org/ntsb-findings/04035015) (Organizational issues): 1 cases - [Regulatory requirements](https://openairdocs.org/ntsb-findings/04034020) (Organizational issues): 1 cases - [Equipment monitoring](https://openairdocs.org/ntsb-findings/04032025) (Organizational issues): 1 cases - [Oversight of operation](https://openairdocs.org/ntsb-findings/04032015) (Organizational issues): 1 cases - [Oversight of personnel](https://openairdocs.org/ntsb-findings/04032010) (Organizational issues): 1 cases - [Between groups/organizations](https://openairdocs.org/ntsb-findings/04025020) (Organizational issues): 1 cases - [Adequacy of policy/proc](https://openairdocs.org/ntsb-findings/04021015) (Organizational issues): 1 cases - [Availability of policy/proc](https://openairdocs.org/ntsb-findings/04021010) (Organizational issues): 1 cases - [Policy/procedure development](https://openairdocs.org/ntsb-findings/04011025) (Organizational issues): 1 cases ## Newest cases - [NTSB DCA25MA108](https://openairdocs.org/ntsb/DCA25MA108), Jan 30, 2025: Bombardier CL-600-2C10 (N709PS), Washington, DC, destroyed, 67 fatal. Probable cause: The Federal Aviation Administration’s (FAA) placement of a helicopter route in close proximity to a runway approach path; their failure to regularly review and evaluate helicopter routes and… - [NTSB CEN21LA336](https://openairdocs.org/ntsb/CEN21LA336), Jul 23, 2021: Driver RV-7 (N977RV), Oshkosh, WI, substantial damage. Probable cause: The RV-8 pilot’s failure to account for the position of the RV-7 behind him during the landing roll in a staggered landing formation, which resulted in a ground collision of the two airplanes.… - [NTSB CEN19CA227](https://openairdocs.org/ntsb/CEN19CA227), Jul 20, 2019: Vans RV-8 (N143MS), Oshkosh, WI, substantial damage. Probable cause: The pilot’s failure to maintain adequate spacing from the lead airplane while landing following revised landing instructions, which necessitated that the pilot conduct an improper landing flare and… - [NTSB DCA17CA147](https://openairdocs.org/ntsb/DCA17CA147), Jul 1, 2017: Airbus A321 231 (N991AU), Chicago, IL, minor damage. Probable cause: the A321 flight crew's incorrect evaluation of the clearance between the aircraft, leading to the inadvertent collision with the horizontal stabilizer of the CRJ700. Contributing to the accident was… - [NTSB ANC13LA066](https://openairdocs.org/ntsb/ANC13LA066), Jul 21, 2013: Cessna T207A (N499K), King Salmon, AK, substantial damage. Probable cause: The pilot’s inadequate visual lookout while departing from a multiple-use waterway, which resulted in a collision with a drifting boat. Contributing to the accident were the lack of visual… - [NTSB CEN11LA635](https://openairdocs.org/ntsb/CEN11LA635), Sep 10, 2011: Fairchild M-62A-3 (N103JC), Waukegan, IL, substantial damage. Probable cause: The pilot’s inadequate preflight inspection of the airplane, which resulted in fuel exhaustion and a total loss of engine power. Contributing to the accident were a malfunctioning fuel gauge and air… - [NTSB ANC11FA062](https://openairdocs.org/ntsb/ANC11FA062), Jul 10, 2011: Cessna U206 (N2186F), Port Alsworth, AK, minor damage. Probable cause: The pilot’s failure to see and avoid the approaching airplane. Contributing to the accident was that the pilot’s failure to listen to radio position reports from the other airplane on the common… - [NTSB CEN10FA443](https://openairdocs.org/ntsb/CEN10FA443), Jul 27, 2010: Hawker Beechcraft 390 (N6JR), Oshkosh, WI, substantial damage. Probable cause: The pilot's decision not to advance the engines to takeoff power during the go-around, as stipulated by the airplane flight manual, which resulted in an aerodynamic stall at a low altitude. - [NTSB CEN09CA434](https://openairdocs.org/ntsb/CEN09CA434), Jul 12, 2009: Pdps Pzl-Bielsko SZD-59 (N592JD), Durango, CO, destroyed. Probable cause: The glider pilot's decision to perform a low-altitude 360-degree turn while on final approach to land. 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.