# NTSB MIA72AM122: Lockheed MK-1, N211L, Indiantown, FL, May 12, 1972

- Type: NTSB accident investigation
- Classification: Accident · Fatal · Closed
- Date: May 12, 1972
- Place: Indiantown, FL · INDIANTOWN, FL
- Location: 27.0400° N, 80.4882° W: Placed by OpenAirDocs: center of Indiantown, FL, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=27.0400&lon=-80.4882&mi=10
- Phase of flight: [Enroute](https://openairdocs.org/ntsb-phases/400) (OpenAirDocs' grouping)
- Highest injury: Fatal
- Injuries: 8 fatal
- Status: Completed, report January 30, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 166418
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MIA72AM122
- Page: https://openairdocs.org/ntsb/MIA72AM122

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1333  72/5/12    INDIANTOWN,FLA      LOCKHEED MK-1       CR-  2  0  0  NONCOMMERCIAL             AIRLINE TRANSPORT, AGE
        TIME - 1112                    N211L               PX-  6  0  0  BUSINESS                  24, 2300 TOTAL HOURS,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            UNK/NR IN TYPE,
                                                                                                   INSTRUMENT RATED.
        DEPARTURE POINT             INTENDED DESTINATION
          FORT LAUDERDALE,FLA         RALEIGH-DURHAM,NC
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           AIRFRAME FAILURE: IN FLIGHT                              IN FLIGHT: OTHER
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - CONTINUED VFR FLIGHT INTO ADVERSE WEATHER CONDITIONS
           PILOT IN COMMAND - EXCEEDED DESIGNED STRESS LIMITS OF AIRCRAFT
           MISCELLANEOUS ACTS,CONDITIONS - OVERLOAD FAILURE
           WEATHER - THUNDERSTORM ACTIVITY
           WEATHER - TURBULENCE, ASSOCIATED W/CLOUDS AND/OR THUNDERSTORMS
           MISCELLANEOUS ACTS,CONDITIONS - SEPARATION IN FLIGHT
           INSTRUMENTS/EQUIPMENT AND ACCESSORIES - FLIGHT AND NAVIGATION INSTRUMENTS: OTHER
           MISCELLANEOUS ACTS,CONDITIONS - CORRODED/CORROSION
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE MAINTENANCE AND INSPECTION
        WEATHER BRIEFING - BRIEFED BY FLIGHT SERVICE PERSONNEL, BY PHONE
        WEATHER FORECAST - FORECAST SUBSTANTIALLY CORRECT
        SKY CONDITION                                            CEILING AT ACCIDENT SITE
          OVERCAST                                                  1000
        VISIBILITY AT ACCIDENT SITE                              PRECIPITATION AT ACCIDENT SITE
          2 MILES OR LESS                                           RAIN SHOWERS, THUNDERSTORM
        OBSTRUCTIONS TO VISION AT ACCIDENT SITE                  TYPE OF WEATHER CONDITIONS
          NONE                                                     IFR
        TYPE OF FLIGHT PLAN
          IFR
        REMARKS- LOST CTL IN TSTM.GYRO INST HAD RUST AND CORROSION.BOTH WGS,HORIZ STAB AND VERT STAB SEPARATED.
```

## Aircraft

- Registration: [N211L](https://openairdocs.org/deregistered/N211L-1972-08-10), registration cancelled 1972-08-10, S/N 2626, built 1955 (OpenAirDocs)
- Reported make and model: LOCKHEED MK-1
- Registry model: [Lockheed 18](https://openairdocs.org/model/lockheed-18) (registry code 5261602) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- 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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