# NTSB DCA25WA345: Boeing 777-222, N796UA, Ezeiza, Argentina, September 9, 2025

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Class 5 · Foreign
- Date: September 8, 2025, 23:57 local (Sep 9, 2025, 02:57 UTC)
- Place: Ezeiza, Argentina · Provided by JST
- Coordinates: -34.817, -58.534833 (estimated)
- Nearby events: https://openairdocs.org/map.md?lat=-34.8170&lon=-58.5348&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Defining event: [Enroute-climb to cruise: Sys/Comp malf/fail (non-power)](https://openairdocs.org/ntsb-events/330)
- Highest injury: No injuries
- Injuries: 266 uninjured
- Status: Led by another country's authority
- Investigation class: Class 5 - No publish
- NTSB office: Major Investigations Division
- Lead agency: Other
- Parties: Boeing, FAA AVP-110, JST, United Airlines
- NTSB case key (mKey): 201821
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DCA25WA345
- NTSB report (PDF, downloads): https://data.ntsb.gov/carol-repgen/api/Aviation/ReportMain/GenerateNewestReport/201821/pdf
- Page: https://openairdocs.org/ntsb/DCA25WA345

## Sequence of events

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

- [Enroute-climb to cruise: Sys/Comp malf/fail (non-power)](https://openairdocs.org/ntsb-events/330) (defining event); cases with it: [Boeing 777-222, 1 case](https://openairdocs.org/ntsb-events/330/sequence.md?model=1385219), [All aircraft, 994 cases](https://openairdocs.org/ntsb-events/330/sequence.md)

## Aircraft

- Registration: [N796UA](https://openairdocs.org/aircraft/N796UA), registered now, S/N 26931, built 1998 (OpenAirDocs)
- Reported make and model: BOEING 777-222
- Registry model: [Boeing 777-222](https://openairdocs.org/model/boeing-777-222) (registry code 1385219) (OpenAirDocs)
- Registry engine: [Pratt & Whitney PW4000 series](https://openairdocs.org/engine/pratt-whitney-pw4000-series) (registry code 52119, turbo-fan) (OpenAirDocs)
- Category: Airplane
- Serial number: 26931
- Year built: 1998
- Engines: P&W PW4000 SER 60000 lbs thrust turbo fan; P&W PW4000 SER 60000 lbs thrust turbo fan
- Damage: No damage
- Flight: Part 121
- Operator: United Airlines Inc
- Registered owner: United Airlines Inc
- Airworthiness certificate: Standard, Transport
- Departed: SAEZ, Buenos Aires, OF
- Destination: IAH, Houston, TX
- Flight plan: IFR

## Flight crew

As NTSB recorded them. NTSB leaves out names.

- Pilot; injuries: none; airline transport
- Co-pilot; injuries: none; airline transport
- Other flight crew; airline transport

## Other investigations on N796UA (2)

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.

- [NTSB ENG27LA001](https://openairdocs.org/ntsb/ENG27LA001), Oct 6, 2026: Boeing 777-222 (N796UA), San Francisco, CA, incident, investigation ongoing
- [NTSB DCA98WA074](https://openairdocs.org/ntsb/DCA98WA074), Jul 29, 1998: Boeing 777 (N796UA), London Heathrow, United Kingdom, incident, minor damage

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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