# NTSB CHI71IC049: Convair 580, N5820, Indianapolis, IN, January 4, 1971

- Type: NTSB incident investigation
- Classification: Incident · No injuries · Closed
- Date: January 4, 1971
- Place: Indianapolis, IN · INDIANAPOLIS, IN
- Location: 39.7684° N, 86.1580° W: Placed by OpenAirDocs: center of Indianapolis, IN, within about 11 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.7684&lon=-86.1580&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 20 uninjured
- Status: Completed, report October 13, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 160381
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=CHI71IC049
- Page: https://openairdocs.org/ntsb/CHI71IC049

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
4-0003   71/1/4    INDIANAPOLIS,IND    CONVAIR 580         CR-  0  0  3  SCHED DOM PASSG SRV       CERTIFICATE UNKNOWN, AGE
        TIME - 1841                    N5820               PX-  0  0 17                            UNK/NR, UNK/NR TOTAL
                                       DAMAGE-MINOR        OT-  0  0  0                            HOURS, UNK/NR IN TYPE,
                                                                                                   UNK/NR INSTRUMENT RATED.
        CLASSIFIED AS INCIDENT
        NAME OF AIRPORT - WEIR-COOK
        OPERATOR - U.S. AIR
        DEPARTURE POINT             INTENDED DESTINATION         LAST ENROUTE STOP
          INDIANAPOLIS,IND            INDIANAPOLIS,IND             TERRE HAUTE,IND
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GEAR COLLAPSED                                           LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           AIRFRAME - LANDING GEAR: MAIN GEAR-SHOCK ABSORBING ASSY,STRUTS,ATTACHMENTS,ETC.
           MISCELLANEOUS ACTS,CONDITIONS - FATIGUE FRACTURE
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - PREVIOUS DAMAGE
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING ON AIRPORT
                                  SUSPECTED OR KNOWN AIRCRAFT DAMAGE
        REMARKS- R MLG SHOCK STRUT CYL FAILED ON TERRE HAUTE LDG. PLT MADE GO AROUND,CONT TO INDIANAPOLIS. LND OK.
```

## Aircraft

- Registration: N5820 (not matched to a registry record)
- Reported make and model: CONVAIR 580
- Category: Airplane
- Engines: turbo prop
- Damage: Minor damage
- Airport: Weir-Cook

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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