# NTSB UNK64X3181: Lake LA4, N1128L, Lake Elmo, MN, August 2, 1964

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 2, 1964
- Place: Lake Elmo, MN · LAKE ELMO, MN
- Location: 44.9879° N, 92.9097° W: Placed by OpenAirDocs: center of Lake Elmo, MN, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=44.9879&lon=-92.9097&mi=10
- Phase of flight: [Taxi](https://openairdocs.org/ntsb-phases/250) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 3 uninjured
- Status: Completed, report November 4, 1964
- Report: Brief approved by the director
- NTSB case key (mKey): 182281
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=UNK64X3181
- Page: https://openairdocs.org/ntsb/UNK64X3181

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-2316   64/8/2    LAKE ELMO MINN      LAKE LA4            CR-  0  0  1  MISCELLANEOUS             AIRLINE TRANSPORT, AGE
        TIME - 1400                    N1128L              PX-  0  0  2  DEMONSTRATION             27, 1875 TOTAL HOURS, 50
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            IN TYPE, INSTRUMENT
                                                                                                   RATED.
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           GROUND-WATER LOOP-SWERVE                                 TAXI: TO TAKEOFF
        PROBABLE CAUSE(S)
           AIRFRAME - LANDING GEAR: NOSEWHEEL ASSEMBLIES
           AIRFRAME - LANDING GEAR: GEAR LOCKING MECHANISM
           MISCELLANEOUS ACTS,CONDITIONS - IMPROPER ALIGNMENT/ADJUSTMENT
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: IMPROPER MAINTENANCE (MAINTENANCE PERSONNEL)
           PERSONNEL - MAINTENANCE,SERVICING,INSPECTION: INADEQUATE INSPECTION OF AIRCRAFT (MAINTENANCE PERSONNEL)
        REMARKS- NOSE WHEEL DOOR OPENED DURING FAST TAXI ON WATER
```

## Aircraft

- Registration: [N1128L](https://openairdocs.org/deregistered/N1128L-1970-06-29), registration cancelled 1970-06-29, S/N 290 (OpenAirDocs)
- Reported make and model: LAKE LA4
- Registry model: [Lake LA-4](https://openairdocs.org/model/lake-la-4) (registry code 5110302) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage

## Other investigations on N1128L (1)

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.

- [NTSB MKC66D0122](https://openairdocs.org/ntsb/MKC66D0122), May 18, 1965: Lake LA-4 (N1128L), Lac La Croix, Canada, 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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