Thai Airways International Boeing 777 300ER incident
Boeing 777 300ER · Incident: uncontained engine failure during takeoff
From Suvarnabhumi Airport (BKK) to Zürich Airport (ZRH)
Event
- NTSB case
- ENG20RA002
- Event typeAccident: someone killed or seriously injured, or the aircraft substantially damaged (NTSB definition). Incident: an occurrence that affected or could have affected safety, short of that. Glossary
- Incident
- InvestigationHow far the investigation had got when the record was published: preliminary, ongoing, final or completed. Unknown where the source does not say. Glossary
- Unknown · led by another country; figures from NTSB notifications
- Event fatalities
- Unknown
- Ground fatalities
- Unknown
- OperationWhat kind of flying it was, grouped by the rules it flew under: airline (US Part 121), air taxi and commuter (Part 135), general aviation (Part 91 and similar), military or government. Glossary
- Airline
- WeatherVisual meteorological conditions (VMC): good enough to fly by looking outside. Instrument conditions (IMC): cloud or low visibility, flying by instruments. Glossary
- Not recorded
Boeing 777 300ER
- Aircraft type
- Boeing 777
- Category
- Airplane
- RegistrationThe aircraft's tail number, such as N12345 or G-ABCD. Registrations are reissued, so the same one years apart can be a different aircraft. Glossary
- HS-TKL
- Operator
- Thai Airways International
- Onboard fatalities
- Unknown
- Route
- From Suvarnabhumi Airport (BKK), BangkokTo Zürich Airport (ZRH), Zurich
- Aircraft age
- Not recorded
- Flight rulesThe regulations the flight operated under: in the US, Part 91 (general aviation), Part 121 (airlines), Part 135 (air taxi and commuter) and others; for flights abroad, the NTSB's coarser commercial or non-commercial code. Glossary
- Non-U.S., Commercial
- Phase of flightThe stage of the flight when things started to go wrong: standing, taxi, takeoff, initial climb, en route, maneuvering, approach or landing. Glossary
- Takeoff · rejected takeoff
- Defining eventThe single coded event the NTSB judges best describes what happened (records from 2008 on). Older records name the first occurrence in the sequence instead. Glossary
- Uncontained engine failure
- DamageDestroyed: beyond practical repair. Substantial: damage that affects the structure, performance or handling and normally needs major repair. Minor: less than that. Glossary
- Minor
Cause areas
No findings designated as a cause are recorded in the NTSB data yet.
Approximate · Estimated position: the centre of Bangkok, the place the record names. Not the accident site.
NTSB narrative
On October 20, 2019, a Thai Airways International Boeing 777-300ER, powered by two General Electric GE90-115B turbofan engines, aborted takeoff after experiencing a No. 1 engine high pressure turbine uncontainment failure during takeoff roll.
The incident is being investigated by Thailand's Aircraft Accident and Incident Investigation Commission (AAIIC). The NTSB is participating in the investigation as the state of manufacture of the airplane and the engines.
Verbatim NTSB factual narrative from the NTSB dataset
Sources
NTSB record ENG20RA002
- Event ID
- 20191022X52238
- Case number
- ENG20RA002
- Dataset
- full-current
- Source SHA-256
- 5cf380f0061817c0331a6b2d8cc7e0ee3a79bea469a1001dc5c10e56f35f5ab3
Source notes (4)
- Unreviewed is an editorial label, not an investigation status. API-sourced is not report-checked or human-reviewed. Explicit event totals are used without summing aircraft injury tables; onboard allocation is withheld. Unknown values remain unknown. The operation category is mapped from the NTSB-reported FAR part and has not been reviewed.
- No bulk values were replaced by the NTSB case API.
- The date is the local date, which is the same as the UTC date the NTSB stores.
- API snapshot SHA-256: 2d1c817cafdf64215b6f3ba3eeedda069a638c522f22b3455420be7fd3218f59; retrieved 2026-09-16T10:27:46.812Z.