# NTSB IAD73AI009: Lockheed 1049, N6906C, Miami, FL, April 3, 1973

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: April 3, 1973
- 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: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report May 29, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 170602
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=IAD73AI009
- Page: https://openairdocs.org/ntsb/IAD73AI009

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-0847   73/4/3    MIAMI,FLA           LOCKHEED 1049       CR-  0  0  3  MISCELLANEOUS             AIRLINE TRANSPORT, AGE
        TIME - 1420                    N6906C              PX-  0  0  0  FERRY                     56, 12300 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            UNK/NR IN TYPE,
                                                                                                   INSTRUMENT RATED.
        NAME OF AIRPORT - MIAMI INTL
        DEPARTURE POINT             INTENDED DESTINATION
          MIAMI,FLA                   LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GEAR RETRACTED                                           TAXI: FROM LANDING
        PROBABLE CAUSE(S)
           AIRFRAME - LANDING GEAR: NORMAL RETRACTION/EXTENSION ASSEMBLY
           MISCELLANEOUS ACTS,CONDITIONS - LEAK/LEAKAGE
           MISCELLANEOUS ACTS,CONDITIONS - MATERIAL FAILURE
        REMARKS- DOWNLOCK MECHANISM FAILED TO PREVENT R GR FROM RETRACT AFTER HYD PRESS LOSS FOR UNDET REASON.
```

## Aircraft

- Registration: [N6906C](https://openairdocs.org/deregistered/N6906C-1975-06-10), registration cancelled 1975-06-10, S/N 4020 (OpenAirDocs)
- Reported make and model: LOCKHEED 1049
- Registry model: [Lockheed 1049-54](https://openairdocs.org/model/lockheed-1049-54) (registry code 5262102) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Miami Intl

## FAA reports on this event (1)

The FAA's own accident and incident reports, matched to the aircraft by N-number and date (OpenAirDocs).

- [Accident 19730403017539A](https://openairdocs.org/incident/19730403017539A), Apr 3, 1973: Lkheed 104954, Miami, FL, Substantial damage. Downlock mechanism failed to prevent r gr from retract after hyd press loss for undet reason.

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

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