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Accidents · NTSB DCA21WA017 · Preliminary: the investigation is not finished

Bombardier CL600 2C10 incident near Chihuahua City, Mx, September 19, 2020

On September 19, 2020 at about 1:31 am local time, a Bombardier CL600 2C10, registered N770SK, was involved in an incident during enroute (climb to cruise) near Chihuahua City. It was flown under non-U.S. private rules. The NTSB record does not give the injuries.

The NTSB's probable cause their words, unchanged

The NTSB has not yet published a probable cause for this incident. Investigations usually take one to two years; this page updates when the final report is released.

Source: NTSB aviation accident database, copy made November 2, 2026. Docket and reports at the NTSB.

What the record shows

Date
September 19, 2020 · about 1:31 am local time · cases in 2020
Place
Chihuahua City, Mexico
Type
Incident
Injuries
The NTSB record does not give the injuries.
Weather
not recorded
Aircraft
Bombardier CL600 2C10 · all CL600 2C10s on the register
Registration
N770SK · registry record · serial 10243
Damage
Not recorded
Flight
Flight · non-U.S. private rules

The factual record from the NTSB's investigation tables, in plain English

What happened, in order

  1. Pressure/environ sys malf/fail during enroute (climb to cruise) defining event

The aircraft

  • Landing gear: fixed
  • Operator: American Airlines

The flight

  • Departed from: MMCU
  • Destination: KDFW

Weather at the time

  • Temperature: 0°F (-18°C), dew point 0°F (-18°C)

Documents from the investigation the NTSB's docket: the evidence folder behind the report

The NTSB has not released the docket for this case yet. The docket, the folder of records gathered during an investigation (maintenance records, photographs, witness statements, examinations), is usually released when the investigation is nearly complete, and the list here is refreshed when it appears. Check at the NTSB.

Connections how this case links to the rest of the register

Aircraft
Place

The whole map of how records connect · these connections as data: /graph/accident/DCA21WA017.json.

The bigger picture in Aviation Analytics: accidents over time since 1982, by model, by phase of flight and conditions, by place and on the map.

Everything on this page comes from the NTSB's public records. The narrative, probable cause and findings are the NTSB's own words; the coded tables behind the report are written out in plain English, with pilots' ages, home towns and medical details left out. The documents and photographs are the NTSB's docket, shown as the NTSB released them. This site's own text does not name anyone involved, its policy at this time. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.