NTSB investigations: Pratt & Whitney R1340 series
115 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
| 1982 | 5 |
|---|---|
| 1983 | 10 |
| 1984 | 8 |
| 1985 | 5 |
| 1986 | 2 |
| 1987 | 3 |
| 1988 | 5 |
| 1989 | 6 |
| 1990 | 9 |
| 1991 | 6 |
| 1992 | 6 |
| 1993 | 4 |
| 1994 | 6 |
| 1995 | 10 |
| 1996 | 5 |
| 1997 | 1 |
| 1998 | 2 |
| 1999 | 1 |
| 2000 | 5 |
| 2001 | 4 |
| 2002 | 3 |
| 2003 | 2 |
| 2004 | 3 |
| 2005 | 3 |
| 2007 | 1 |
Where
Open the mapLatest 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.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.
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.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" DESCRun it at the DuckDB prompt, or in any tool that reads Parquet over HTTPS. More ways to query the release are on Use the data.
NTSB CHI07LA219Accident · No injuriesLimited investigationFinal reportNorth American T-6G · Fond Du Lac, WIThe loss of engine power due to the failure of the engine's master connecting rod which resulted in the forced landing. The road sign was a factor.NTSB DEN05LA143Accident · No injuriesLimited investigationFinal reportNorth American SNJ-5 · Torrington, WYfailure of the #7 connecting rod, causing engine seizure. A contributing factor was the berm.NTSB DFW05IA222Incident · No injuriesIncident investigationFinal reportAir Tractor AT-401 · Winnie, TXThe loss of engine power due to the failure of the second-stage turbine wheel as a result of low cycle fatigue.NTSB NYC05LA126Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Felton, DEThe mechanic's inadequate annual inspection, and failure to comply with an airworthiness directive, which resulted in a total failure of the second stage turbine rotor.NTSB FTW04CA246Accident · No injuriesData collectionFinal reportGrumman G-164A · Gilbert, LAThe failure of a piston connecting rod for undetermined reasons resulting in the loss of engine power. A contributing factor was the lack of suitable terrain for the forced landing.NTSB FTW04LA227Accident · No injuriesLimited investigationFinal reportGrumman 164B · East Bernard, TXThe loss of engine power as result of the failure of the number four cylinder. A factor was the lack of suitable terrain for the forced landing.NTSB DEN04LA083Accident · No injuriesLimited investigationFinal reportAyres S-2R · Beaver, UTthe in-flight failure of the engine's P3 tube which resulted in the loss of engine power and the subsequent impact with terrain during a forced landing. Contributing factors include the lack of suitable terrain for a forced landing and the fence.NTSB ATL03LA122Accident · No injuriesLimited investigationFinal reportAir Tractor AT401B · Girard, GAA loss of engine power due to the failure of the internal supercharger blower seals.NTSB CHI03LA095Accident · Serious injuriesLimited investigationFinal reportAir Tractor AT-401 · Knox, INA loss of engine power due to oil starvation as a result of the failure of the master rod bearing. Contributing factors were the tree line at the edge of the field, and the unsuitable terrain.NTSB SEA02LA123Accident · No injuriesLimited investigationFinal reportGrumman-Schweizer G-164B · Weiser, IDThe fracture of the number 3 cylinder exhaust pushrod resulting in the exhaust valve's inability to open during the exhaust cycle and the subsequent engine stoppage. Contributing factors were the ditch and elevated roadway which the aircraft crossed during…NTSB LAX02LA143Accident · No injuriesLimited investigationFinal reportGrumman-Schweizer G-164C · Olivehurst, CAFuel starvation due to the failure of an engine accessory component. A contributing factor was the rough terrain.NTSB FTW02LA107Accident · No injuriesLimited investigationFinal reportGrumman-Schweizer G-164B · Ferriday, LAthe failure of the number three cylinder exhaust rocker arm, resulting in a total loss of engine power. A contributing factor was the lack of suitable terrain for the forced landing.NTSB CHI01LA286Accident · No injuriesLimited investigationFinal reportGrumman-Schweizer G-164A · Petersburg, NEThe failure of the engine cylinder, and the unsuitable terrain for landing encountered by the pilot. Factors were the low altitude and the muddy field.NTSB FTW01LA178Accident · No injuriesLimited investigationFinal reportAir Tractor AT-401 · Grand Coteau, LAthe loss of engine power while maneuvering, which resulted from a fractured #4 cylinder head at the exhaust valve rocker arm boss. A contributing factor was the lack of suitable terrain for the forced landing.NTSB FTW01LA156Accident · Minor injuriesLimited investigationFinal reportRockwell International S-2R · Sabinal, TXa loss of engine power due to a crack in the #9 cylinder, which result in the failure of the connecting rod during the aerial application flight. A contributing factor was the lack of suitable terrain for the forced landing.NTSB CHI01LA135Accident · No injuriesLimited investigationFinal reportAir Tractor AT-401 · Warsaw, ILthe rocker assembly failure during low level maneuvering. Factors were the soft and sandy terrain and the unsuitable terrain the pilot encountered during the forced landing.NTSB CHI00LA247Accident · No injuriesLimited investigationFinal reportSchweizer G-164B · Wallace, NEthe fractured number three exhaust push rod assembly and the unsuitable terrain encountered by the pilot.NTSB FTW00LA168Accident · 1 fatalLimited investigationFinal reportAir Tractor AT-301 · Garwood, TXthe loss of engine power in cruise flight as a result of the failure of the right magneto. A contributing factor was the lack of suitable terrain for the forced landing.NTSB FTW00LA159Accident · Minor injuriesLimited investigationFinal reportAir Tractor AT-301 · Garwood, TXThe failure of the supercharger seal resulting in the loss of engine power. A factor was the lack of suitable terrain for the forced landing.NTSB SEA00LA082Accident · No injuriesLimited investigationFinal reportGulfstream-Schweizer G-164B · Ephrata, WALoss of engine power due to failure of the number three cylinder exhaust valve push rod. Soft terrain encountered during the landing roll-out was a factor.NTSB FTW00LA074Accident · No injuriesLimited investigationFinal reportAir Tractor AT-401 · Rayville, LAThe loss of engine power due to a crack in the #6 cylinder. A factor was the lack of suitable terrain for the forced landing.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.NTSB FTW98LA171Accident · No injuriesLimited investigationFinal reportAero Commander S2R · Cushing, OKThe total loss of engine power resulting from a sheared accessory drive due to an undetermined reason. A factor was the lack of suitable terrain for the forced landing.NTSB LAX98LA090Accident · No injuriesLimited investigationFinal reportAir Tractor AT-301 · Wasco, CAThe pilot overboosting the engine on takeoff which resulted in a cracked cylinder and subsequent loss of engine power.NTSB LAX97LA121Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Winters, CAthe failure of the engine cylinder head assembly due to operational fatigue.NTSB FTW96LA341Accident · No injuriesLimited investigationFinal reportAyres S-2R · Wharton, TXtotal loss of engine power due to a fractured torque sensor shaft. Factors relating to the accident were: the obstructions (fence and trees) in the emergency landing area.NTSB 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.NTSB LAX96LA213Accident · No injuriesLimited investigationFinal reportRockwell S-2R · Lost Hills, CAthe loss of engine power due to a cylinder failure. A contributing factor was the lack of a suitable field for the forced landing.NTSB 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.NTSB FTW96LA135Accident · Minor injuriesLimited investigationFinal reportRockwell S-2R · Winchester, ARFailure of the engine master rod. A factor relating to the accident was: the lack of suitable terrain for a forced landing, due to the proximity of a power line and trees.NTSB FTW96LA007Accident · Minor injuriesLimited investigationFinal reportGrumman G-164A · Hamburg, ARLoss of engine power due to a cylinder failure. A factor relating to the accident was: the lack of suitable terrain for the forced landing.NTSB 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.NTSB 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.NTSB SEA95LA161Accident · No injuriesLimited investigationFinal reportAir Tractor AT-301 · Havre, MTthe loss of power due to a failure of the cylinder head exhaust valve rocker box. The tall crop encountered during the forced landing is a factor.NTSB SEA95LA138Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Burley, IDA total loss of engine power due to fatigue failure of the crankshaft. A factor in the accident was the lack of suitable terrain for the forced landing.NTSB SEA95LA143Accident · No injuriesLimited investigationFinal reportAero Commander S2R · Odessa, WALoss of engine power due to a cracked cylinder.NTSB CHI95LA198Accident · No injuriesLimited investigationFinal reportAir Tractor AT-301 · Hoxie, KSthe loss of engine power due to the loose nut on the adjustment screw and the jammed exhaust valve on the number three cylinder. A factor in the accident was the ditch.NTSB LAX95LA195Accident · No injuriesLimited investigationFinal reportGrumman G-164B · Robbins, CAa loss of engine power due to a separation of the number 6 cylinder, and the nose over during the subsequent forced landing.NTSB FTW95LA213Accident · No injuriesLimited investigationFinal reportAir Tractor AT-301 · Caldwell, ARThe loss of power due to a crack in the #4 cylinder. Factors were the lack of suitable terrain for the forced landing and proper touchdown point not possible.NTSB LAX95LA126Accident · No injuriesLimited investigationFinal reportSchweizer G-164A · Robbins, CAA failure of the engine master rod. A factor in the accident was the soft, wet condition of the field available for the forced landing.NTSB LAX94LA327Accident · No injuriesLimited investigationFinal reportAero Commander S2R · Firebaugh, CAthe loss of engine power due to the failure of the number 2 cylinder head. A factor was the dark night conditions which inhibited the pilot's ability to visually detect ground obstructions in the landing area.NTSB FTW94LA256Accident · No injuriesLimited investigationFinal reportAir Tractor AT-401 · Mcgehee, ARTotal loss of engine power as the engine seized due to a blower bearing failure. A factor was the lack of suitable terrain for the forced landing.NTSB ATL94LA128Accident · Minor injuriesLimited investigationFinal reportAir Tractor AT-301 · Smithville, GAThe failure of # 2 cylinder head.NTSB FTW94LA164Accident · No injuriesLimited investigationFinal reportAero Commander S2R · Monticello, ARThe loss of engine power due to the number 2 cylinder cracking. A factor was the lack of suitable terrain for the forced landing.NTSB SEA94LA116Accident · No injuriesLimited investigationFinal reportAero Commander S2R · Dayton, WATotal failure of the connecting rod.NTSB LAX94LA133Accident · No injuriesLimited investigationFinal reportSchweizer G-164B · Clarksburg, CAThe total failure of the no. 1 cylinder due to fatigue resulting from an improperly adjusted mixture causing detonation. The soft, wet plowed field was a factor in this accident.NTSB LAX94LA063Accident · No injuriesLimited investigationFinal reportNorth American SNJ-5 · Santa Paula, CAwas the failure of the needle valve pin assembly in the airplane's carburetor. A factor which contributed to the accident was the lack of suitable terrain for the emergency landing.NTSB ATL93LA132Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Atmore, ALThe total failure of the engine supercharger, which resulted in engine stoppage. A factor was the rough terrain at the forced landing site.NTSB DEN93LA081Accident · No injuriesLimited investigationFinal reportAir Tractor AT-401 · Dermott, ARPower loss due to the total failure of the engine's master rod. Factors were an improper engine overhaul and the lack of suitable terrain for a forced landing.NTSB LAX93LA200Accident · 1 fatalLimited investigationFinal reportGrumman 164A · Biggs, CAFailure of the number 2 engine cylinder. A factor related to the accident was the lack of altitude for the pilot to make a successfull forced landing.