# NTSB MIA72AM039: Lockheed 1049H, N6912C, Miami, FL, October 20, 1971

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: October 20, 1971
- 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: No injuries
- Injuries: 3 uninjured
- Status: Completed, report August 24, 1972
- Report: Brief approved by the director
- NTSB case key (mKey): 164602
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA72AM039
- Page: https://openairdocs.org/ntsb/MIA72AM039

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-4463  71/10/20 NR.MIAMI,FLA          LOCKHEED 1049H      CR-  0  0  3  NONCOMMERCIAL             AIRLINE TRANSPORT, AGE
        TIME - 1155                    N6912C              PX-  0  0  0  CORP/EXEC                 35, 7200 TOTAL HOURS, 930
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            IN TYPE, INSTRUMENT
                                                                                                   RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          SAN JUAN,PR                MIAMI,FLA
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           AIRFRAME FAILURE: IN FLIGHT                              IN FLIGHT: DESCENDING
        PROBABLE CAUSE(S)
           SYSTEMS - FLIGHT CONTROL SYSTEMS: ELEVATOR AND ELEVATOR TAB CONTROL SYSTEM
           MISCELLANEOUS ACTS,CONDITIONS - EXCESSIVE-WEAR/PLAY
           MISCELLANEOUS ACTS,CONDITIONS - VIBRATION,EXCESSIVE
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - PREVIOUS DAMAGE
        EMERGENCY CIRCUMSTANCES - PRECAUTIONARY LANDING ON AIRPORT
                                  PITCH CONTROL PROBLEM
                                  SUSPECTED OR KNOWN AIRCRAFT DAMAGE
        REMARKS- L ELEV TRIM TAB ACTUATING MECHANISM FAILED.FREED TAB RESULTED IN FLUTTER AND DMG TO ELEV.LND OK.
```

## Aircraft

- Registration: [N6912C](https://openairdocs.org/deregistered/N6912C-1974-02-12), registration cancelled 1974-02-12, S/N 4809 (OpenAirDocs)
- Reported make and model: LOCKHEED 1049H
- Registry model: [Lockheed 1049H](https://openairdocs.org/model/lockheed-1049h) (registry code 5262122) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- 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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