Northwest Airlines Flight 9, a Boeing 747-151, N607US, was a scheduled passenger flight from Honolulu, Hawaii. Its destination was Tokyo, Japan. At departure from Honolulu, at 1330 H.s.t., 31 revenue passengers and 11 crewmembers were on board. After take-off at 1,300 feet m.s.l., a separation of the second-stage turbine disk occurred rupturing the high pressure turbine case and cowling. A fire warning and severe vibration ensued. The flight returned to Honolulu at 1351 H.s.t. There were no injuries to crew or passengers. The National Transportation Safety Board determines that the probable cause of this incident was the in-flight separation of the second-stage turbine disk of the No. 3 engine. The separation of the disk was the result of a fatigue crack in a nickel-plated area of the turbine air seal land and progressed into the base material under operating loads. (Author)


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    Titel :

    Aircraft Incident Report. Northwest Airlines, Inc., Boeing 747-151, N607US, Honolulu, Hawaii, May 13, 1971


    Erscheinungsdatum :

    1971


    Format / Umfang :

    11 pages


    Medientyp :

    Report


    Format :

    Keine Angabe


    Sprache :

    Englisch