The U.S. aircraft register, updated daily
Accidents · NTSB DCA25WA342 · Preliminary: the investigation is not finished

Boeing 737 and Airbus Helicopters EC135 incident near Madrid, Es, September 17, 2025

On September 17, 2025 at about 4:07 am local time, 2 aircraft, Boeing 737 (EIDWX) and Airbus Helicopters EC135 (N10302), were involved in the same incident near Madrid. No one was hurt; 195 people were on board or involved.

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 October 5, 2026. Docket and reports at the NTSB.

What the record shows

Date
September 17, 2025 · about 4:07 am local time
Place
Madrid, Spain · map
Type
Incident
Injuries
No one was hurt; 195 people were on board or involved.
Weather
not recorded
Aircraft 1
Boeing 737 8AS, built 2008 · all 737s on the register
Registration
EIDWX · no longer on the register · serial 2508
Damage
Not recorded
Flight
Flight · non-U.S. commercial rules
Aircraft 2
Airbus Helicopters EC135 · all EC135s on the register
Registration
N10302 · registry record
Damage
Not recorded
Flight
Flight · non-U.S. private rules

The factual record for the Boeing 737 from the NTSB's investigation tables, in plain English

What happened, in order

  1. Near midair/TCAS alert/loss of separation during initial climb defining event

The aircraft

  • Landing gear: retractable

The flight

  • Destination: LBSF Sofia

Weather at the time

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

Injuries

FatalSeriousMinorNone
Cabi4
Flight crew2
Passengers186

The factual record for the Airbus Helicopters EC135 from the NTSB's investigation tables, in plain English

The aircraft

  • Landing gear: fixed
  • Engine: Pratt & Whitney Canada PW206B3 (turboshaft); 0 hours total

The flight

  • Departed from: LETO Madrid OF
  • Destination: LETO Madrid

Injuries

FatalSeriousMinorNone
Flight crew2
Passengers1

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.

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 never names anyone involved. A preliminary report can change; the final report usually follows one to two years later, and the page is refreshed when it does.