# NTSB DCA22WA020: Boeing 787-9, N36962, Baradero, Argentina, November 3, 2021

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Class 5 · Foreign
- Date: November 3, 2021, 00:40 local (00:40 UTC)
- Place: Baradero, Argentina
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Defining event: [Enroute: Pressure/environ sys malf/fail](https://openairdocs.org/ntsb-events/331)
- Highest injury: No injuries
- Injuries: 159 uninjured
- Status: Led by another country's authority
- Investigation class: Class 5 - No publish
- NTSB office: Major Investigations Division
- Lead agency: Other
- Parties: United, JST
- NTSB case key (mKey): 104217
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DCA22WA020
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/104217/pdf
- Page: https://openairdocs.org/ntsb/DCA22WA020

## Sequence of events

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

- [Enroute: Pressure/environ sys malf/fail](https://openairdocs.org/ntsb-events/331) (defining event); cases with it: [Boeing 787-9, 1 case](https://openairdocs.org/ntsb-events/331/sequence.md?model=1385609), [All aircraft, 116 cases](https://openairdocs.org/ntsb-events/331/sequence.md)

## Aircraft

- Registration: [N36962](https://openairdocs.org/aircraft/N36962), registered now, S/N 35880, built 2015 (OpenAirDocs)
- Reported make and model: BOEING 787-9
- Registry model: [Boeing 787-9](https://openairdocs.org/model/boeing-787-9) (registry code 1385609) (OpenAirDocs)
- Registry engine: [GE GENX-1B74/75/ series](https://openairdocs.org/engine/ge-genx-1b74-75-series) (registry code 30222, turbo-fan) (OpenAirDocs)
- Category: Airplane
- Serial number: 35880
- Year built: 2015
- Damage: No damage
- Flight: Part 121
- Operator: United Airlines Inc
- Registered owner: United Airlines Inc
- Airworthiness certificate: Standard, Transport
- Departed: EZE, Buenos Aires
- Destination: IAH, Houston, TX

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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