# NTSB MKC73DCA23: Lake LA-4, N1118L, St Charles, MO, May 11, 1973

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: May 11, 1973
- Place: St Charles, MO · ST CHARLES, MO
- Location: 38.7957° N, 90.5154° W: Placed by OpenAirDocs: center of St. Charles, MO, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=38.7957&lon=-90.5154&mi=10
- Phase of flight: [Landing](https://openairdocs.org/ntsb-phases/550) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report June 26, 1973
- Report: Brief approved by the director
- NTSB case key (mKey): 190386
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=MKC73DCA23
- Page: https://openairdocs.org/ntsb/MKC73DCA23

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1424  73/5/11  NR.ST CHARLES,MO      LAKE LA-4           CR-  0  0  2  INSTRUCTIONAL             ATP,FLIGHT INSTR., AGE
        TIME - 1620                    N1118L              PX-  0  0  0  DUAL                      37, 5050 TOTAL HOURS, 18
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            IN TYPE, INSTRUMENT
                                                                                                   RATED.
        NAME OF AIRPORT - ST CHARLES
        DEPARTURE POINT             INTENDED DESTINATION
          ST CHARLES,MO               LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           HARD LANDING                                             LANDING: LEVEL OFF/TOUCHDOWN
        PROBABLE CAUSE(S)
           DUAL STUDENT - IMPROPER LEVEL OFF
           PILOT IN COMMAND - INADEQUATE SUPERVISION OF FLIGHT
        FACTOR(S)
           MISCELLANEOUS ACTS,CONDITIONS - AIRCRAFT CAME TO REST IN WATER
           TERRAIN - GLASSY WATER
        REMARKS- WATER VERY SMOOTH.T/D ON ACFTS KEEL,SKIPPED APRX 4-6IN INTO AIR THEN SETTLED BACK.ACFT SANK.
```

## Aircraft

- Registration: [N1118L](https://openairdocs.org/deregistered/N1118L-2013-01-30), registration cancelled 2013-01-30, S/N 280, built 1963 (OpenAirDocs)
- Reported make and model: LAKE LA-4
- Registry model: [Lake LA-4](https://openairdocs.org/model/lake-la-4) (registry code 5110302) (OpenAirDocs)
- Registry engine: [Lycoming O&VO-360 series](https://openairdocs.org/engine/lycoming-o-vo-360-series) (registry code 41514, reciprocating) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Substantial damage
- Airport: St Charles

## 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 19730511012389A](https://openairdocs.org/incident/19730511012389A), May 11, 1973: Conaer LA4, St Charles, MO, Substantial damage. Water very smooth.t/d on acfts keel,skipped aprx 4-6IN into air then settled back. Acft sank.

## Other investigations on N1118L (3)

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 LAX87LA019](https://openairdocs.org/ntsb/LAX87LA019), Oct 18, 1986: Lake LA4-180 (N1118L), Folsom, CA, substantial damage
- [NTSB UNK64X3852](https://openairdocs.org/ntsb/UNK64X3852), Sep 7, 1964: Lake LA4 (N1118L), Lake Texhoma, TX, substantial damage
- [NTSB UNK64X0861](https://openairdocs.org/ntsb/UNK64X0861), Mar 9, 1964: Lake LA4 (N1118L), Knoxville, TN, 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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