# NTSB MIA63A0114: Boeing 720B, N724US, Miami, FL, February 12, 1963

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: February 12, 1963
- Place: Miami, FL · MIAMI, FL
- Location: 25.7743° N, 80.1937° W: Placed by OpenAirDocs: center of Miami, FL, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=25.7743&lon=-80.1937&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 43 fatal
- Status: Completed, report August 21, 1968
- Report: Brief approved by the director
- NTSB case key (mKey): 179883
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA63A0114
- Page: https://openairdocs.org/ntsb/MIA63A0114

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
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
```

## Aircraft

- Registration: N724US (not matched to a registry record)
- Reported make and model: BOEING 720B
- Category: Airplane
- Engines: turbo fan
- Damage: Destroyed

From the NTSB's public API. Aircraft are matched to registry aircraft by N-number and event date, checked against the reported serial number, make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model.

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