NTSB investigations: Pratt & Whitney R1340 series, MS

6 cases on aircraft whose registry engine model is Pratt & Whitney R1340 series, where the first occurrence was “Loss of engine power(total) - mech failure/malf”. 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

19822026
NTSB investigations: Pratt & Whitney R1340 series, MS per year, 1982–2026: 6 cases
19821
19891
19911
19951
19961
19991

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.\"eventStateOrRegion\" = 'MS' AND c.\"eventCountry\" = 'USA'
    AND c.\"mKey\" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('52016')
      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\" = 351))
  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 ATL99LA129Accident · No injuriesLimited investigationFinal reportAir Tractor AT-401 · Caledonia, MSThe failure of the fuel control gear train due to oil contamination. A factor was Inadequate maintenance.Sep 13, 1999 · N45205 · Substantial damageNTSB MIA96LA183Accident · No injuriesLimited investigationFinal reportRockwell S2R · Belzoni, MSfatigue failure of the #5 cylinder skirt, which resulted in debris that caused the oil scavenge pump to fail, oil starvation, cam drive seizure, loss of engine power, and a subsequent forced landing in a field of cotton.Jul 13, 1996 · N3695X · Substantial damageNTSB MIA95LA192Accident · No injuriesLimited investigationFinal reportSchweizer G-164B · Quitman, MSImproper (low) outflow from the fuel control unit, due to improper maintenance, which resulted in a loss of engine power and a forced landing.Aug 5, 1995 · N7502A · Substantial damageNTSB MIA91LA219Accident · Minor injuriesLimited investigationFinal reportAir Tractor AT-401 · Sumner, MSFailure of the no. 1 cylinder assembly.Sep 16, 1991 · N1004W · Substantial damageNTSB MIA89LA166Accident · Serious injuriesLimited investigationFinal reportAyres S2R · Lambert, MSFailure of the engine impeller. The ditch in the emergency landing area was a related factor.May 28, 1989 · N5543X · DestroyedNTSB ATL82DA252Accident · No injuriesFinal reportGrumman G-164C · Gunnison, MSThe pilot reported that he smelled something hot while spraying. He checked the instruments and noted that the oil temperature gauge was indicating off the high side of the scale. He started to make a precautionary landing but the engine seized during final…Aug 27, 1982 · N6787K · Substantial damage