# NTSB MKC68A0073: Convair 580, N4824C, Sioux Falls, SD, June 24, 1968

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: June 24, 1968
- Place: Sioux Falls, SD · SIOUX FALLS, SD
- Location: 43.5500° N, 96.7003° W: Placed by OpenAirDocs: center of Sioux Falls, SD, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=43.5500&lon=-96.7003&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 22 uninjured
- Status: Completed, report December 3, 1968
- Report: Brief approved by the director
- NTSB case key (mKey): 110672
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC68A0073
- Page: https://openairdocs.org/ntsb/MKC68A0073

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
1-0028  68/6/24  NR.SIOUX FALLS,S DAK  CONVAIR 580         CR-  0  0  3  SCHED DOM PASSG SRV       AIRLINE TRANSPORT, AGE
        TIME - 1938                    N4824C              PX-  0  0 19                            45, 16810 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            150 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        OPERATOR - NORTH CENTRAL AIRLINES,INC.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           COLLIDED WITH: ELECTRONIC TOWERS                         LANDING: INITIAL APPROACH
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - IMPROPER IFR OPERATION
        FACTOR(S)
           WEATHER - LOW CEILING
           WEATHER - THUNDERSTORM ACTIVITY
           TERRAIN - HIGH OBSTRUCTIONS
           MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT
        WEATHER BRIEFING - COMPANY DISPATCH
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING ON AIRPORT
                                  SUSPECTED OR KNOWN AIRCRAFT DAMAGE
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          OVERCAST/LOWER SCATTERED                                  1600
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          1 MILE OR LESS                                           RAIN
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  WIND DIRECTION-DEGREES
          FOG                                                       10
        WIND VELOCITY-KNOTS                                      TYPE OF WEATHER CONDITIONS
           13                                                      IFR
        TYPE OF FLIGHT PLAN
          IFR
         FIRE AFTER IMPACT
        REMARKS- STRUCK TV TOWER GUY WIRE AVOIDING TSTM ACTIVITY.PLT EXCEEDED CLNC LIMITS.LFT PROP SEPARATED.LND OK
```

## Aircraft

- Registration: [N4824C](https://openairdocs.org/deregistered/N4824C-1996-05-21), registration cancelled 1996-05-21, S/N 379 (OpenAirDocs)
- Reported make and model: CONVAIR 580
- Registry model: [Convair 440](https://openairdocs.org/model/convair-440) (registry code 2422902) (OpenAirDocs)
- Category: Airplane
- Engines: turbo prop
- Damage: Substantial damage

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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