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Last updated: 11 August 2020
Datum:Mittwoch 28 Mai 1975
Flugzeugtyp:Silhouette image of generic YS11 model; specific model in this crash may look slightly different
NAMC YS-11-125
Fluggesellschaft:TOA Domestic Airlines
Kennzeichen: JA8680
Werknummer: 2041
Baujahr: 1967
Besatzung:Todesopfer: 0 / Insassen: 4
Fluggäste:Todesopfer: 0 / Insassen: 18
Gesamt:Todesopfer: 0 / Insassen: 22
Sachschaden: Zerstört
Konsequenzen: Written off (damaged beyond repair)
Unfallort:Osaka-Itami Airport (ITM) (   Japan)
Flugphase: Landung (LDG)
Betriebsart:Inländischer planmäßiger Passagierflug
Flug von:Osaka-Itami Airport (ITM/RJOO), Japan
Flug nach:Oki Island Airport (OKI/RJNO), Japan
Flugnummer: 621
A hydraulic oil leak forced the crew to return to Osaka (ITM). A tire blew during the landing roll on runway 32R causing the YS-11 to veer off the runway. The aircraft crossed a sod area and a drainage ditch. The oil leak was caused by a loose connection of the hydraulic oil line in the left flap well.

Accident investigation:
Investigating agency: AAIC Japan
Status: Investigation completed
Duration: 211 days (7 months)
Accident number: Final report
Download report: Final report

» Aircraft and Railway Accidents Investigation Commission (ARAIC) Japan
» Aviation News 27.06.1975


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This map shows the airport of departure and the intended destination of the flight. The line between the airports does not display the exact flight path.
Distance from Osaka-Itami Airport to Oki Island Airport as the crow flies is 245 km (153 miles).

This information is not presented as the Flight Safety Foundation or the Aviation Safety Network’s opinion as to the cause of the accident. It is preliminary and is based on the facts as they are known at this time.
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