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ASN Wikibase Occurrence # 212714
Last updated: 8 April 2021
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Time:12:37 LT
Type:Silhouette image of generic B773 model; specific model in this crash may look slightly different
Boeing 777-3B5
Owner/operator:Korean Air
Registration: HL7573
C/n / msn: 27952/288
Fatalities:Fatalities: 0 / Occupants: 335
Other fatalities:0
Aircraft damage: Minor
Category:Serious incident
Location:Tokyo-Narita Airport (NRT/RJAA) -   Japan
Phase: Landing
Nature:Passenger - Scheduled
Departure airport:Seoul-Incheon International Airport (ICN/RKSI)
Destination airport:Tokyo-Narita International Airport (NRT/RJAA)
Investigating agency: JTSB
Korean Air KE703 from Seoul (ICN) to Tokyo (NRT) suffered serious damage to the rear wheel axle of the right-hand main landing gear.
The Boeing 777-300 landed on runway 16L at 12:38 LT (03:38 UTC) and was stopped on taxiway K, five minutes later after it appeared the rear wheel axle had broken. The passengers disembarked on the taxiway and were bussed to the terminal, 1 hour and 40 minutes after the incident. The runway 16L/34R was closed for 20 minutes to clear the debris.

It is certain that the aircraft had the right main landing gear aft axle fractured when landing in the serious incident, and subsequently, it was forced to halt on taxiway and could not continue taxiing.
It is highly probable that the fractured axle was attributed to the stress corrosion cracking originated from the corrosion generating on the pivot bore and ongoing operations of the aircraft thereafter with cracking occurred.
It is highly probable that the corrosion generated on the pivot bore was contributed by water penetration caused by the torn fillet seal due to rotation of the bushings and corrosion inhibitor that was not applied.


Accident investigation:
Investigating agency: JTSB
Status: Investigation completed
Duration: 1 year and 3 months
Download report: Final report



Photo of HL7573 courtesy

Hong Kong - International (VHHH / HKG)
21 October 2003; (c) Alastair T. Gardiner

Photo: JTSB

Revision history:

29-Jun-2018 10:43 harro Added
29-Jun-2018 10:47 harro Updated [Source, Embed code, Narrative]
29-Jun-2018 10:51 harro Updated [Source]
29-Jun-2018 12:36 harro Updated [Embed code]
29-Jun-2018 14:09 isamuel Updated [Destination airport, Source, Embed code, Narrative]
30-Jun-2018 19:07 harro Updated [Embed code]
24-Jul-2018 18:15 isamuel Updated [Time, Source, Narrative]
28-Sep-2019 18:58 harro Updated [Damage, Narrative, Photo, Accident report, ]
06-May-2020 06:45 rio Updated [Narrative]

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