# NTSB DCA21WA017: Bombardier CL600 2C10, N770SK, Chihuahua City, Mexico, September 19, 2020

- Type: NTSB incident investigation
- Classification: Incident · Class 5 · Foreign
- Date: September 19, 2020, 01:31 local (01:31 UTC)
- Place: Chihuahua City, Mexico
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Defining event: [Enroute-climb to cruise: Pressure/environ sys malf/fail](https://openairdocs.org/ntsb-events/331)
- Status: Led by another country's authority
- Investigation class: Class 5 - No publish
- NTSB office: Major Investigations Division
- Lead agency: Other
- NTSB case key (mKey): 102231
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DCA21WA017
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/102231/pdf
- Page: https://openairdocs.org/ntsb/DCA21WA017

## Sequence of events

The events NTSB coded, in order, by phase of flight. The defining event best describes what happened.

- [Enroute-climb to cruise: Pressure/environ sys malf/fail](https://openairdocs.org/ntsb-events/331) (defining event); cases with it: [Bombardier CL-600-2C10, 1 case](https://openairdocs.org/ntsb-events/331/sequence.md?model=1390015), [All aircraft, 116 cases](https://openairdocs.org/ntsb-events/331/sequence.md)

## Aircraft

- Registration: [N770SK](https://openairdocs.org/aircraft/N770SK), registered now, S/N 10243, built 2006 (OpenAirDocs)
- Reported make and model: BOMBARDIER CL600 2C10
- Registry model: [Bombardier CL-600-2C10](https://openairdocs.org/model/bombardier-cl-600-2c10) (registry code 1390015) (OpenAirDocs)
- Registry engine: [GE CF34-8C5B1](https://openairdocs.org/engine/ge-cf34-8c5b1) (registry code 30052, turbo-fan) (OpenAirDocs)
- Category: Airplane
- Serial number: 10243
- Damage: No damage
- Flight: Non-U.S., non-commercial
- Operator: American Airlines
- Departed: MMCU
- Destination: KDFW

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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