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ASN Wikibase Occurrence # 230107
Last updated: 11 March 2020
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Time:01:27 LT
Type:Silhouette image of generic B77W model; specific model in this crash may look slightly different
Boeing 777-3ALER
Owner/operator:Thai Airways
Registration: HS-TKL
C/n / msn: 41521/1049
Fatalities:Fatalities: 0 / Occupants: 359
Other fatalities:0
Aircraft damage: Substantial
Location:Bangkok-Suvarnabhumi International Airport (BKK/VTBS) -   Thailand
Phase: Take off
Nature:International Scheduled Passenger
Departure airport:Bangkok-Suvarnabhumi International Airport (BKK/VTBS)
Destination airport:Zürich-Kloten Airport (ZRH/LSZH)
Thai Airways flight TG970, a Boeing 777-300ER, suffered an uncontained engine failure (GE90-115B) during takeoff from runway 01L. The flight crew rejected the takeoff and taxied back to the apron.
It appeared the aircraft experienced an uncontained high-pressure turbine (HPT) failure. Debris impacted the aircraft fuselage and the other engine. 

As a result, the FAA issued an emergency Airworthiness Directive on 23 October 2019. A second EAD was issued on Jan. 17, 2020, requiring removal of the interstage seal on specific GE90 engines.

Sources: (EAD)


Photo of HS-TKL courtesy

London - Heathrow (EGLL / LHR)
8 January 2019; (c) Paul Seymour

Revision history:

21-Oct-2019 17:17 Added
21-Oct-2019 17:22 harro Updated [Time, Aircraft type, Total occupants, Other fatalities, Departure airport, Destination airport, Source, Narrative]
21-Oct-2019 17:23 harro Updated [Time, Location, Narrative]
21-Oct-2019 17:26 harro Updated [Narrative]
21-Oct-2019 18:10 Iceman 29 Updated [Source, Embed code]
24-Oct-2019 07:55 Aerossurance Updated [Source, Embed code, Narrative]
24-Oct-2019 18:02 harro Updated [Narrative]
24-Oct-2019 18:29 Iceman 29 Updated [Embed code]
24-Oct-2019 18:56 harro Updated [Narrative]
20-Jan-2020 09:50 harro Updated [Source, Narrative]

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