NTSB investigations: Pratt & Whitney R1340 series, GA

11 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

19832026
NTSB investigations: Pratt & Whitney R1340 series, GA per year, 1983–2026: 11 cases
19833
19852
19891
19911
19941
19951
19961
20031

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\" = 'GA' 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 ATL03LA122Accident · No injuriesLimited investigationFinal reportAir Tractor AT401B · Girard, GAA loss of engine power due to the failure of the internal supercharger blower seals.Jul 30, 2003 · N61227 · Substantial damageNTSB MIA96LA122Accident · Minor injuriesLimited investigationFinal reportGrumman G-164A · Edison, GAFailure of the mounting studs for the No. 4 cylinder, which resulted in separation of the cylinder and loss of engine power. The lack of suitable terrain for a forced landing was a related factor.Apr 18, 1996 · N4238 · Substantial damageNTSB ATL95LA169Accident · Minor injuriesLimited investigationFinal reportAir Tractor AT-301 · Plains, GAFailure of the number four cylinder rocker arm housing and pin, which resulted in a closed exhaust valve and loss of engine power.Sep 16, 1995 · N2362D · Substantial damageNTSB ATL94LA128Accident · Minor injuriesLimited investigationFinal reportAir Tractor AT-301 · Smithville, GAThe failure of # 2 cylinder head.Jul 2, 1994 · N3649B · DestroyedNTSB ATL91LA059Accident · No injuriesLimited investigationFinal reportAir Tractor AT-301 · Pavo, GAThe failure of the no. 2 exhaust valve and cylinder head, which resulted in a total loss of engine power. A factor in the accident was the collision with a road sign during the forced landing.Feb 18, 1991 · N8770S · Substantial damageNTSB ATL89DKG05Accident · Minor injuriesFinal reportGrumman G-164A · Dawson, GAFailure of the number three cylinder head.Jul 31, 1989 · N9755 · Substantial damageNTSB MIA85LA222Accident · No injuriesLimited investigationFinal reportRockwell S-2R · Colquitt, GAThe aircraft was substantially damaged and the pilot uninjured when the aircraft flipped upside down in a field during a forced landing in an open field following engine failure. A post accident examination of the engine revealed the number seven cylinder…Jul 30, 1985 · N3647X · Substantial damageNTSB ATL85LKG04Accident · No injuriesFinal reportAero Commander S2R · Leslie, GAThe acft lost power en route to spray crops & crash landed in a wooded area. The acft had flown only 2 miles when the power loss occurred. During the post accident investigation an exam of the powerplant & systems revealed that the supercharger had a loose…Apr 10, 1985 · N8834Q · DestroyedNTSB ATL83LA326Accident · Minor injuriesLimited investigationFinal reportGrumman G-164A · Hatley, GAThe pilot reported that while spraying a cotton field at aprx 60 feet AGL when the engine made a popping sound and then lost power. The pilot landed in a cotton field where the aircraft rolled over on its back and was destroyed by the post impact fire.…Aug 15, 1983 · N7904 · DestroyedNTSB ATL83LA225Accident · Minor injuriesLimited investigationFinal reportAir Tractor AT-301 · Fort Valley, GAThe eng quit at 200 ft AGL as the plt was returning to a strip. A forced landing was made in a wheat field & the acft rolled through a narrow tree line. The carb float was found cracked & leaking.Jun 9, 1983 · N5071S · Substantial damageNTSB ATL83LA205Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Blakely, GAShortly after takeoff, the eng sputtered, lost power & belched black & gray smoke. The plt was unable to get the acft to maintain altidude. Also, he was unable to reach an open field, so he landed on the tops of trees. An investigation revealed that the front…Jun 1, 1983 · N8476K · Destroyed