OpenAirDocs.org

NTSB investigations: Let BLANIK L-13

7 cases on aircraft the registry lists as Let BLANIK L-13, where the first occurrence was “Loss of control - in flight”. Aircraft are matched to the registry by N-number and event date, checked against the reported serial number, make and model, so older matches can be wrong.

Cases per year

19862026

Where

Open the map

Latest cases

Query with SQL
duckdb -csv -c "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\" = 250))
  ORDER BY c.\"eventDate\" DESC, c.\"ntsbNumber\" DESC"

Prints the whole list as CSV. It reads the release’s Parquet files over HTTPS, so there’s nothing to download first. Install DuckDB to run it.

NTSB SEA96FA186Accident · 1 fatalField investigationFinal reportLet L-13 · Shelton, WAfailure of the operator to provide its pilots with information essential for an accurate determination of the glider's weight and balance, the resultant operation of the glider with a center-or-gravity that exceeded the aft limit, and the pilot's inadvertent…Aug 11, 1996 · N90865 · Substantial damageNTSB BFO94LA074Accident · No injuriesLimited investigationFinal reportLet Blanik L-13 · Plymouth, MAThe pilot's failure to maintain adequate airspeed.Apr 23, 1994 · N2167 · Substantial damageNTSB DEN93LA085Accident · Minor injuriesLimited investigationFinal reportLet L-13 · Durango, COThe failure of the tow plane pilot to warn the glider pilot that he was releasing the tow line. A factor was: an inadvertent stall by the pilot in command.Jul 24, 1993 · N48069 · DestroyedNTSB DEN89LA210Accident · 1 fatalLimited investigationFinal reportLet L-13 · Buena Vista, COA premature release of the glider tow line by the glider pilot and his failure to maintain sufficient airspeed, while maneuvering back toward the runway, which resulted in an inadvertent stall.Sep 16, 1989 · N3458 · Substantial damageNTSB LAX89LA027Accident · 1 fatalLimited investigationFinal reportLet L-13 · Marana, CAThe pilot reported that shortly after liftoff from runway 26 the control stick became difficult to move. He decided to continue the air tow and release at 200 feet AGL after release, the pilot turned the glider to return to the runway to land. He was still…Oct 29, 1988 · N90848 · Substantial damageNTSB FTW87LA199Accident · No injuriesLimited investigationFinal reportLet L-13 · Littlefield, TXThe pilot activated the flaps while on final approach instead of the spoilers. When the glider did not descend as he expected, a left 360 degree turn was initiated to lose altitude. The pilot stated that he then unintentionally stalled the aircraft while in…Aug 16, 1987 · N9997Q · Substantial damageNTSB CHI86LA133Accident · No injuriesLimited investigationFinal reportLet L-13 · Gregory, MIThe pilot stated that during landing the right wing of the glider touched the ground causing a right turn. The left wing then caught on a truck tire causing a 70 degree turn to the left. The glider was stopped when the right wing struck a barn. He was later…Apr 27, 1986 · N30LH · Substantial damage