# NTSB investigations: Let BLANIK L-13: In flight collision with object

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 LAX08CA003](https://openairdocs.org/ntsb/LAX08CA003.md): Let Blanik L-13 · Hemet, CA · Accident · No injuries · Data collection · Final report · Oct 6, 2007 · N510CS · Substantial damage
  > The pilot's failure to maintain a proper descent rate due to his failure to close the air brake and/or partially retract the flaps during an encounter with lost lift on final approach.
- [NTSB DEN01LA143](https://openairdocs.org/ntsb/DEN01LA143.md): Blanik L-13 · Morgan, UT · Accident · No injuries · Limited investigation · Final report · Aug 11, 2001 · N310GM · Substantial damage
  > the pilot's inadvertent lowering of the flaps and her failure to extend the spoilers.
- [NTSB MIA97LA046](https://openairdocs.org/ntsb/MIA97LA046.md): Let Blanik L-13 · Mulberry, FL · Accident · No injuries · Limited investigation · Final report · Dec 22, 1996 · N48052 · Substantial damage
  > The pilot's failure to check that the spoiler handle was locked in the retracted position prior to takeoff.
- [NTSB ATL97LA013](https://openairdocs.org/ntsb/ATL97LA013.md): Let L-13 · Benton, TN · Accident · Serious injuries · Limited investigation · Final report · Oct 30, 1996 · N15CB · Substantial damage
  > failure of the flight crew to maintain altitude/clearance above runway obstacles, and inadequate supervision by the flight instructor. Factors relating to the accident were sunglare on the canopy, and the proximity of obstacles (trees) to the runway.
- [NTSB CHI95LA308](https://openairdocs.org/ntsb/CHI95LA308.md): Let L-23 Super Blanik · White Bear Lake, MN · Accident · No injuries · Limited investigation · Final report · Sep 5, 1995 · N99970 · Substantial damage
  > the pilot's delayed retraction of the spoilers. Factors were the excessive sink rate and the power lines.
- [NTSB DEN84FA161](https://openairdocs.org/ntsb/DEN84FA161.md): Let L-13 · Edgewood, NM · Accident · 1 fatal · Field investigation · Final report · May 26, 1984 · N48032 · Destroyed
  > Witnesses reported that the acft appeared to be too high, too fast, and in a crab as it approached the rwy. Over the rwy the glider was observed to roll into a right turn as the nose came up. Shortly thereafter the right wing struck 3 parked acft and collided…
- [NTSB LAX84LA091](https://openairdocs.org/ntsb/LAX84LA091.md): Let L-13 · Jacumba, CA · Accident · No injuries · Limited investigation · Final report · Dec 3, 1983 · N711KR · Substantial damage
  > The acft collided with a bush and groundlooped short of the rwy. The wind was unusually strong and the glider plt stated he misjudged its effect and should have flown the base leg closer. The acft landed short of the rwy and ground looped.

## 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" = 220))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?model=1360306&occurrence=220

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