Flight History
On 1 September 2023, at 10:31 UTC, Delta Air Lines flight DL79, a Boeing 767-332ER(WL) registered as N175DN, departed from runway 24 at Václav Havel Airport Prague (LKPR) bound for John F. Kennedy International Airport (KJFK). The aircraft had four flight crew members on board: the Captain (Pilot Monitoring) in the left seat, a First Officer (Pilot Flying) in the right seat, and two additional First Officers occupying the center jump seat and the jump seat behind the Captain.
Pre-flight procedures were performed normally. During the initial climb, at approximately 1,500 ft above mean sea level, the flight crew heard a loud bang emanating from the right side of the aircraft. Simultaneously, indications of a right engine failure appeared. The right engine flamed out and shut down. No fire indication was observed.
Crew Actions
The flight crew continued the climb, declared an emergency, and performed the appropriate Quick Reference Handbook (QRH) procedures. They leveled the aircraft at 3,000 ft mean sea level, informed company dispatch and maintenance, and initiated a return to LKPR. The aircraft landed safely. No injuries were sustained by the flight crew or passengers.
Investigation
The Air Accidents Investigation Institute (AAII) was notified of the occurrence. The incident was reported to EASA, the European Commission, ICAO, and the NTSB as the State of Registration, Operator, and Design/Manufacturer. The NTSB appointed an Accredited Representative. The investigation utilized crew testimonies, radio communication transcripts, digital flight data recorder (DFDR) records, crew and aircraft documents, information from LKPR, and analysis by the engine manufacturer.
The aircraft, a Boeing 767-332ER(WL) with registration N175DN, sustained damage to the right engine. The engine type and specific damage details were documented in the investigation. No other damage was reported.
The final report was issued on 7 January 2026 by the AAII. The cause of the serious incident was not explicitly stated in the source document.