# NTSB DEN70FXD04: Lake LA-4, N7640L, Broomfield, CO, April 8, 1970

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: April 8, 1970
- Place: Broomfield, CO · BROOMFIELD, CO
- Location: 39.9205° N, 105.0867° W: Placed by OpenAirDocs: center of Broomfield, CO, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.9205&lon=-105.0867&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report January 13, 1971
- Report: Brief approved by the director
- NTSB case key (mKey): 129578
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=DEN70FXD04
- Page: https://openairdocs.org/ntsb/DEN70FXD04

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1818   70/4/8    BROOMFIELD,COLO     LAKE LA-4           CR-  0  0  1  NONCOMMERCIAL             COMMERCIAL, FL.INSTR.,
        TIME - 1500                    N7640L              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  AGE 34, 2500 TOTAL HOURS,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            24 IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - BROOMFIELD JEFFCO
        DEPARTURE POINT             INTENDED DESTINATION
          BROOMFIELD,COLO             LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           HARD LANDING                                             LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - MISJUDGED ALTITUDE
        FACTOR(S)
           TERRAIN - GLASSY WATER
           MISCELLANEOUS ACTS,CONDITIONS - SUNGLARE
        REMARKS- WATER LDG ON LAKE NEAR ARPT.
```

## Aircraft

- Registration: N7640L (not matched to a registry record)
- Reported make and model: LAKE LA-4
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: Broomfield Jeffco

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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