# NTSB SEA78DYE35: Let-Np-K L-13, N9244Z, Issaquah, WA, August 13, 1978

- Type: NTSB accident investigation
- Classification: Accident · No injuries · Closed
- Date: August 13, 1978
- Place: Issaquah, WA · ISSAQUAH, WA
- Location: 47.5462° N, 122.0581° W: Placed by OpenAirDocs: center of Issaquah, WA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=47.5462&lon=-122.0581&mi=10
- Phase of flight: [Approach](https://openairdocs.org/ntsb-phases/500) (OpenAirDocs' grouping)
- Highest injury: No injuries
- Injuries: 2 uninjured
- Status: Completed, report August 28, 1978
- Report: Brief approved by the director
- NTSB case key (mKey): 140494
- NTSB case page: https://web.ntsb.gov/investigations/?ntsbnumber=SEA78DYE35
- Page: https://openairdocs.org/ntsb/SEA78DYE35

## NTSB brief

```
----------------------------------------------------------------------------------------------------------------------------
 FILE    DATE          LOCATION          AIRCRAFT DATA       INJURIES       FLIGHT                        PILOT DATA
                                                               F  S M/N     PURPOSE
----------------------------------------------------------------------------------------------------------------------------
3-1927  78/8/13    ISSAQUAH,WA         LET-NP-K L-13       CR-  0  0  1  NONCOMMERCIAL             PRIVATE, AGE 33, 468
        TIME - 1430                    N9244Z              PX-  0  0  1  PLEASURE/PERSONAL TRANSP  TOTAL HOURS, 11 IN TYPE,
                                       DAMAGE-SUBSTANTIAL  OT-  0  0  0                            NOT INSTRUMENT RATED.
        NAME OF AIRPORT - SKYPORT
        DEPARTURE POINT             INTENDED DESTINATION
          ISSAQUAH,WA                 LOCAL
        TYPE OF ACCIDENT                                         PHASE OF OPERATION
           UNDERSHOOT                                               LANDING: FINAL APPROACH
           COLLIDED WITH: OBJECT                                    LANDING: ROLL
        PROBABLE CAUSE(S)
           PILOT IN COMMAND - FAILED TO FOLLOW APPROVED PROCEDURES,DIRECTIVES,ETC.
           PILOT IN COMMAND - MISJUDGED DISTANCE AND ALTITUDE
        FACTOR(S)
           TERRAIN - ROUGH/UNEVEN
        REMARKS- MISUSED SPOILERS. LND IN ROCKS.
```

## Aircraft

- Registration: [N9244Z](https://openairdocs.org/deregistered/N9244Z-2013-03-18), registration cancelled 2013-03-18, S/N 026503, built 1975 (OpenAirDocs)
- Reported make and model: LET-NP-K L-13
- Registry model: [Let BLANIK L-13](https://openairdocs.org/model/let-blanik-l-13) (registry code 1360306) (OpenAirDocs)
- Registry engine: [NONE](https://openairdocs.org/engine/none) (registry code 00000, none) (OpenAirDocs)
- Category: Glider
- Engines: none
- Damage: Substantial damage
- Airport: Skyport

## 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 19780813019419A](https://openairdocs.org/incident/19780813019419A), Aug 13, 1978: Let L13BLANIK, Issaquah, WA, Substantial damage. Misused spoilers. Lnd in rocks.

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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