NTSB Identification: MIA63A0114
14 CFR Part 121 Scheduled operation of NORTHWEST AIRLINES INC
Aircraft: BOEING 720B, registration: N724US

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 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
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1-0006  63/2/12  NR.MIAMI,FLA          BOEING 720B         CR-  8  0  0  SCHED DOM PASSG SRV       AIRLINE TRANSPORT, AGE
        TIME - 1350                    N724US              PX- 35  0  0                            47, 17835 TOTAL HOURS,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            150 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        OPERATOR - NORTHWEST AIRLINES,INC.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           AIRFRAME FAILURE: IN FLIGHT                              IN FLIGHT: NORMAL CRUISE
           COLLISION WITH GROUND/WATER: UNCONTROLLED                IN FLIGHT: UNCONTROLLED DESCENT
        PROBABLE CAUSE(S)
           WEATHER - TURBULENCE, ASSOCIATED W/CLOUDS AND/OR THUNDERSTORMS
           WEATHER - DOWNDRAFT,UPDRAFTS
           WEATHER - THUNDERSTORM ACTIVITY
           AIRFRAME - WINGS: OTHER
           AIRFRAME - FLIGHT CONTROL SURFACES: HORIZONTAL STABILIZER, ATTACHMENTS
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT
        WEATHER BRIEFING - COMPANY DISPATCH
        WEATHER FORECAST - WEATHER CONSIDERABLY WORSE THAN FORECAST
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          BROKEN                                                    600
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          1 MILE OR LESS                                           RAIN SHOWERS
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  WIND DIRECTION-DEGREES
          NONE                                                     280
        WIND VELOCITY-KNOTS                                      TYPE OF WEATHER CONDITIONS
           16                                                      IFR
        TYPE OF FLIGHT PLAN
          IFR
        REMARKS- BOTH WINGS,STAB FAILED.SEVERE UPDRAFTS AND LONGITUDINAL CONTROL DISPLACEMENT CAUSED LONGITUD UPSET

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