# NTSB DCA21WA142: Boeing 737, Barcelona, Spain, May 28, 2021

- Type: NTSB incident investigation
- Classification: Incident · Class 5 · Foreign
- Date: May 28, 2021, 11:35 local (11:35 UTC)
- Place: Barcelona, Spain
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Defining event: [Enroute: Near midair/TCAS alert/loss of separation](https://openairdocs.org/ntsb-events/260)
- Status: Led by another country's authority
- Investigation class: Class 5 - No publish
- NTSB office: Major Investigations Division
- Lead agency: Other
- Parties: CIAIAC Spain
- NTSB case key (mKey): 103204
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DCA21WA142
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/103204/pdf
- Page: https://openairdocs.org/ntsb/DCA21WA142

## Sequence of events

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

- [Enroute: Near midair/TCAS alert/loss of separation](https://openairdocs.org/ntsb-events/260) (defining event), aircraft 1; cases with it: [All aircraft, 96 cases](https://openairdocs.org/ntsb-events/260/sequence.md)

## Aircraft 1

- Registration: PH-BXF (not matched to a registry record)
- Reported make and model: BOEING 737 (8K2)
- Category: Airplane
- Damage: No damage
- Flight: Non-U.S., commercial
- Operator: Klm
- Registered owner: Klm
- Airworthiness certificate: Standard, Transport

## Aircraft 2

- Registration: EC-MNG (not matched to a registry record)
- Reported make and model: TECNAM P2006T
- Category: Airplane
- Damage: No damage
- Flight: Instructional, Non-U.S., non-commercial
- Operator: European Aviation School of Barcelona
- Registered owner: European Aviation School of Barcelona

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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