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 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
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4-0036   71/6/3  NR.WASHINGTON,DC      NIHON YS-11A        CR-  0  0  4  SCHED DOM PASSG SRV       AIRLINE TRANSPORT, AGE
        TIME - 1816                    N224P               PX-  0  0 41                            37, 11503 TOTAL HOURS,
                                       DAMAGE-MINOR        OT-  0  0  0                            1122 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        CLASSIFIED AS INCIDENT
        OPERATOR - PIEDMONT AVIATION,INC.
        DEPARTURE POINT             INTENDED DESTINATION
         WASHINGTON,DC                WINSTON-SALEM,NC
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           ENGINE FAILURE OR MALFUNCTION                            IN FLIGHT: NORMAL CRUISE
           FIRE OR EXPLOSION: IN FLIGHT                             IN FLIGHT: NORMAL CRUISE
        PROBABLE CAUSE(S)
           POWERPLANT - COMPRESSOR ASSEMBLY: IMPELLER
           MISCELLANEOUS ACTS,CONDITIONS - CHAFED
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        COMPLETE POWER LOSS - COMPLETE ENGINE FAILURE/FLAMEOUT-1 ENGINE
        EMERGENCY CIRCUMSTANCES - FORCED LANDING ON AIRPORT/SEAPLANE BASE/HELIPT.
        REMARKS- BOLT FROM INLET GUIDE VANE,NR 1 ENG,LOOSE.CAUSED MILLING THRU BACKING PLATE.IMPELLER FAILED.

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