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NTSB investigations: Pratt & Whitney R-985 series, TX

6 cases on aircraft whose registry engine model is Pratt & Whitney R-985 series, where the first occurrence was “Loss of engine power(partial) - 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

Where

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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\" = 'TX' 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 ('52008')
      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\" = 352))
  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 FTW89DRA08Accident · Minor injuriesFinal reportGrumman-Schweizer G-164B · Anahuac, TXFailure of the supercharger bearing. The dirt bank was a contributing factor.Jul 18, 1989 · N6633Q · DestroyedNTSB FTW87DRA03Accident · No injuriesFinal reportGrumman G-164B · Egypt, TXAcft experienced a power loss drng an aerial app maneuver. During the ensuing emerg lndg, the left wing struck high weeds on the shoulder of a road, veered left into a ditch, and flipped over. Investigation revealed no. 7 cylinder had a pre-existing crack in…Jun 8, 1987 · N6667Q · Substantial damageNTSB FTW86LA160Accident · No injuriesLimited investigationFinal reportBoeing E75 · Sweetwater, TXWhile the acft was in cruise flt, the engine suddenly went to idle power. The plt attempted to land in a clearing, but was unable to reach the intended area. During the landing, the acft collided with low mesquite trees, damaging the landing gear & wings. An…Sep 2, 1986 · N4563N · Substantial damageNTSB FTW85LA002Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Progreso, TXShortly after takeoff, plt heard explosive report from engine and experienced partial pwr loss. Plt attempted to return for landing but could not maintain sufficient altitude. Load not jettisoned. During forced landing roll out in cane field acft nosed over.…Oct 1, 1984 · N5255 · Substantial damageNTSB FTW83LA405Accident · Minor injuriesLimited investigationFinal reportGrumman G-164B · East Bernard, TXDuring takeoff, the eng had a partial loss of power after the acft lifted off. The plt reported that he dumped his load of defoliant, but the acft would not climb. Subsequently, it settled & collided with brush & trees. The plt attributed the power loss to a…Aug 31, 1983 · N48687 · Substantial damageNTSB FTW82DA211Accident · No injuriesFinal reportBeech D18S · Beeville, TXThe pilot and three passengers departed on a pleasure flight. The pilot stated that after climbing several hundred feet and while at 110 mph, the right propeller went into high pitch following a propeller governor failure. This resulted in a loss of engine…Jun 3, 1982 · N7510 · Substantial damage