NTSB Identification: MKC76IK006
14 CFR Part 121 Scheduled operation of NORTH CENTRAL AIRLINES INC
Aircraft: CONVAIR 580, registration: N4801C

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 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
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4-0027   75/7/9  NR.SIOUX CITY,IA      CONVAIR 580         CR-  0  0  3  SCHED DOM PASSG SRV       AIRLINE TRANSPORT, AGE
        TIME - 0934                    N4801C              PX-  0  0 19                            42, 13000 TOTAL HOURS,
                                       DAMAGE-MINOR        OT-  0  0  0                            3091 IN TYPE, NOT
                                                                                                   INSTRUMENT RATED.
        CLASSIFIED AS INCIDENT
        OPERATOR - NORTH CENTRAL AIRLINES,INC.
        DEPARTURE POINT             INTENDED DESTINATION
         SIOUX CITY,IA                SIOUX FALLS,SD
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           FIRE OR EXPLOSION: IN FLIGHT                             IN FLIGHT: CLIMB TO CRUISE
        PROBABLE CAUSE(S)
           POWERPLANT - TURBINE ASSEMBLY: WHEEL TURBINE
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING ON AIRPORT
                                  SUSPECTED OR KNOWN AIRCRAFT DAMAGE
        REMARKS- 2ND STAGE TURBINE WHEEL (S/N KK15491) FRACTURED RESULTING IN UNCONTAINED TURBINE FAILURE.

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