# NTSB SEA7LFYE18: Lake LA-4, N2011L, Alderwood Mnr, WA, October 11, 1975

- Type: NTSB accident investigation
- Classification: Accident · Serious injuries · Closed
- Date: October 11, 1975
- Place: Alderwood Mnr, WA · ALDERWOOD MNR, WA
- Location: 47.8146° N, 122.2672° W: Placed by OpenAirDocs: center of Alderwood Manor, WA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=47.8146&lon=-122.2672&mi=10
- Phase of flight: [Initial climb](https://openairdocs.org/ntsb-phases/350) (OpenAirDocs' grouping)
- Highest injury: Serious injuries
- Injuries: 3 serious
- Status: Completed, report December 18, 1975
- Report: Brief approved by the director
- NTSB case key (mKey): 150981
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA7LFYE18
- Page: https://openairdocs.org/ntsb/SEA7LFYE18

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-3422  75/10/11   ALDERWOOD MNR,WA    LAKE LA-4           CR-  0  1  0  NONCOMMERCIAL             PRIVATE, AGE 39, 1200
        TIME - 1445                    N2011L              PX-  0  2  0  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 86 IN TYPE,
                                       DAMAGE-DESTROYED    OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - MARTHA LAKE ARPT
        DEPARTURE POINT             INTENDED DESTINATION
          ALDERWOOD MNR,WA            HOOD CHANNEL,WA
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           STALL: MUSH                                              TAKEOFF: INITIAL CLIMB
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - PREMATURE LIFT-OFF
           PILOT IN COMMAND - FAILED TO OBTAIN/MAINTAIN FLYING SPEED
        FACTOR(S)
           PERSONNEL - PRODUCTION-DESIGN-PERSONNEL: OTHER
           TERRAIN - HIGH OBSTRUCTIONS
        REMARKS- HEAVILY LOADED ACFT,UNABLE TO CLR OBSTRUCTIONS.1700FT RWY.TKOF PERFORMANCE INFO NOT AVAIL FM MANUF
```

## Aircraft

- Registration: [N2011L](https://openairdocs.org/deregistered/N2011L-1975-12-01), registration cancelled 1975-12-01, S/N 344 (OpenAirDocs)
- Reported make and model: LAKE LA-4
- Registry model: [Lake LA-4](https://openairdocs.org/model/lake-la-4) (registry code 5110302) (OpenAirDocs)
- Category: Airplane
- Engines: reciprocating
- Damage: Destroyed
- Airport: Martha Lake Arpt

## 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 19751011033779A](https://openairdocs.org/incident/19751011033779A), Oct 11, 1975: Conaer LA4, Alderwood Mnr, WA, Destroyed. Heavily loaded acft,unable to clr obstructions.1700FT rwy. Tkof performance info not avail fm manuf

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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