# NTSB investigations: Let BLANIK L-13: Miscellaneous/other

NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports.

## Latest cases

- [NTSB SEA01LA153](https://openairdocs.org/ntsb/SEA01LA153.md): Let Blanik L-13 · Enumclaw, WA · Accident · Serious injuries · Limited investigation · Final report · Aug 19, 2001 · N82AS · Substantial damage
  > The premature release of the towline and the pilot's improper selection of a landing area following the release. Factors include improper preflight planning.
- [NTSB ATL95LA080](https://openairdocs.org/ntsb/ATL95LA080.md): Let Blanik L-13 · Brownsboro, AL · Accident · No injuries · Limited investigation · Final report · Apr 8, 1995 · N48039 · Substantial damage
  > The student pilot's inadvertent use of spoilers during takeoff. Factors related to the accident were: the glider instructor's failure to identify the extended spoilers, and the proximity of trees in the emergency landing area.
- [NTSB CHI91LA231](https://openairdocs.org/ntsb/CHI91LA231.md): Let L-13 · Gregory, MI · Accident · No injuries · Limited investigation · Final report · Jul 26, 1991 · N781BA · Substantial damage
  > A collision with wires after the glider overshot the landing area due to inadvertent lowering of the flaps and no use of spoilers.
- [NTSB MIA86LA070](https://openairdocs.org/ntsb/MIA86LA070.md): Let L-13 · Brooksville, FL · Accident · No injuries · Limited investigation · Final report · Feb 2, 1986 · N26TS · Substantial damage
  > The pilot stated that he encountered sinking air & was unable to make the arpt. He also stated that he was operating east of the arpt & that a seabreeze wind from the west existed at the time of the accident. The effective glide ratio of a glider is reduced…
- [NTSB ATL84LA300](https://openairdocs.org/ntsb/ATL84LA300.md): Let L-13 · Warrenton, VA · Accident · No injuries · Limited investigation · Final report · Aug 25, 1984 · N14YA · Substantial damage
  > The plt inadvertantly deployed the flaps on final apch instead of the spoilers. The glider overshot the airstrip touching down in rough terrain off the departure end.
- [NTSB CHI82DA177](https://openairdocs.org/ntsb/CHI82DA177.md): Blanik L-13 · Warren, MN · Accident · Minor injuries · Final report · May 20, 1982 · N99805 · Substantial damage
  > The pilot was having difficulty controlling the glider during the tow and released prematurely. The destination was 12 to 14 miles away with 10-15 kt headwinds. When the pilot decided the destination could not be made a road was selected for a forced landing…

## The whole list in SQL

Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS:

```sql
SELECT c."ntsbNumber", c."eventDate", c."eventType", c."eventCity", c."eventStateOrRegion", a.n_number, a."aircraftMake", a."aircraftModel", c."highestInjuryLevel", c."totalFatal", c."completionStatus", c.report_url
FROM 'https://openairdocs.org/data/latest/ntsb_case_detail.parquet' c LEFT JOIN 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' a ON a.case_mkey = c."mKey" AND a.position = 1
WHERE c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('1360306')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 430))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=1360306&occurrence=430

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