NTSB investigations: Pratt & Whitney R1340 series, 1998
31 cases on aircraft whose registry engine model is Pratt & Whitney R1340 series. 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
| 1964 | 15 |
|---|---|
| 1965 | 17 |
| 1966 | 16 |
| 1967 | 24 |
| 1968 | 10 |
| 1969 | 19 |
| 1970 | 16 |
| 1971 | 20 |
| 1972 | 20 |
| 1973 | 33 |
| 1974 | 32 |
| 1975 | 44 |
| 1976 | 49 |
| 1977 | 44 |
| 1978 | 50 |
| 1979 | 50 |
| 1980 | 42 |
| 1981 | 52 |
| 1982 | 42 |
| 1983 | 35 |
| 1984 | 42 |
| 1985 | 36 |
| 1986 | 37 |
| 1987 | 34 |
| 1988 | 42 |
| 1989 | 36 |
| 1990 | 34 |
| 1991 | 30 |
| 1992 | 28 |
| 1993 | 29 |
| 1994 | 40 |
| 1995 | 35 |
| 1996 | 31 |
| 1997 | 23 |
| 1998 | 31 |
| 1999 | 30 |
| 2000 | 26 |
| 2001 | 30 |
| 2002 | 30 |
| 2003 | 22 |
| 2004 | 27 |
| 2005 | 20 |
| 2006 | 17 |
| 2007 | 24 |
| 2008 | 33 |
| 2009 | 25 |
| 2010 | 24 |
| 2011 | 29 |
| 2012 | 16 |
| 2013 | 14 |
| 2014 | 16 |
| 2015 | 13 |
| 2016 | 19 |
| 2017 | 11 |
| 2018 | 12 |
| 2019 | 14 |
| 2020 | 6 |
| 2021 | 11 |
| 2022 | 10 |
| 2023 | 14 |
| 2024 | 12 |
| 2025 | 9 |
| 2026 | 4 |
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 year(c.\"eventDate\") = 1998
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'))
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 year(c."eventDate") = 1998
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'))
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 LAX99LA040Accident · No injuriesLimited investigationFinal reportGrumman-Schweizer G-164C · Oroville, CAThe pilot's decision to attempt readjustment of the rudder pedal in-flight.NTSB ATL99LA014Accident · No injuriesLimited investigationFinal reportAir Tractor AT-301 · Statesboro, GAThe pilot's failure to use carburetor heat. Factors were conditions favorable for the formation of carburetor ice.NTSB LAX99LA008Accident · Minor injuriesLimited investigationFinal reportStearman E75 · Oakland, CAA loss of engine power due to the pilot's inadvertent entry into a negative 'g' condition, which induced a temporary interruption of the fuel supply.NTSB ATL98LA117Accident · No injuriesLimited investigationFinal reportAir Tractor 401 · Holly Bluff, MSThe malfunction of the carburetor which resulted in improper fuel flow to the engine.NTSB ATL98LA115Accident · No injuriesLimited investigationFinal reportSchweizer G164B · Newton, MSThe erosion of the compressor impeller and the unsecured fuel control unit resulted in the loss of engine power during the initial climb.NTSB SEA98FA164Accident · 2 fatalField investigationFinal reportNorth American SNJ-5C · Winlock, WAThe pilot's failure to maintain adequate altitude during attempted low-level aerobatics.NTSB CHI98LA305Accident · No injuriesLimited investigationFinal reportAir Tractor AT-301 · Edgeley, NDThe pilot's failure to maintain flying airspeed resulting in a stall/mush condition during the initial climb. Contributing factors were the high density altitude, high aircraft weight, and pilot's delayed jettison of the load, as well as the roadway and crop.NTSB CHI98LA306Accident · Minor injuriesLimited investigationFinal reportRockwell S2R · Kindred, NDthe pilot did not maintain clearance with obstructions along his flight path.NTSB CHI98LA301Accident · No injuriesLimited investigationFinal reportGrumman-Schweizer G-164A · La Moure, NDa loss of engine power due to undetermined reasons.NTSB LAX98LA255Accident · Serious injuriesLimited investigationFinal reportGrumman G-164A · Nelson, CAThe pilot's failure to maintain an adequate ground clearance altitude while applying chemicals to a rice field.NTSB CHI98LA290Accident · No injuriesLimited investigationFinal reportAir Tractor AT-301 · Mentha, MIthe pilot's improper inflight decision to land the airplane on the gravel covered road with an uneven surface that had corn growing next to its edge. A factor in this accident was the pilot selecting an unsuitable landing area.NTSB LAX98LA240Accident · 1 fatalLimited investigationFinal reportGrumman G-164A · Tracy, CAThe failure of the pilot to maintain an adequate clearance with the telephone wires.NTSB LAX98LA238Accident · No injuriesLimited investigationFinal reportAyres S2R · Shafter, CAThe pilot's failure to maintain an adequate clearance from the irrigation standpipe due to glare from the rising sun.NTSB MIA98LA201Accident · No injuriesLimited investigationFinal reportRockwell S-2R · Belzoni, MSThe malfunction in the engine blower section, resulting in oil starvation, the seizure of the engine.NTSB CHI98LA250Accident · Minor injuriesLimited investigationFinal reportCanadian Car & Foundry Harvard MK IV · Dyersville, IAthe pilot in command's not maintaining control of the airplane and his inadvertently allowing the airplane to enter a stall. A factor was the undetermined loss of engine power.NTSB SEA98LA125Accident · No injuriesLimited investigationFinal reportRockwell S-2R · Pasco, WASeparation of the throttle linkage which resulted in the loss of power. Factors include worn throttle linkage parts and the furrows in the plowed field which was the available field for the forced landing.NTSB FTW98LA304Accident · No injuriesLimited investigationFinal reportAir Tractor AT-301 · Plainview, TXThe pilot's failure to maintain obstacle clearance during the aerial application flight. A factor was the transmission wire.NTSB CHI98LA241Accident · No injuriesLimited investigationFinal reportRockwell S-2R · Fort Ransom, NDA loss of engine power due to fuel exhaustion. Factors contributing to this accident were the pilot's failure to ensure the airplane had enough fuel to complete the flight, and the fence.NTSB SEA98LA106Accident · No injuriesLimited investigationFinal reportSchweizer G-164B · Oakdale, WAA fatigue failure of the number three cylinder exhaust rocker box assembly, compromising the ability of the exhaust valve to operate. Factors include a ditch at the end of the runway.NTSB CHI98LA217Accident · No injuriesLimited investigationFinal reportAir Tractor AT-301 · Ipswich, SDthe pilot's inadequate evaluation of the weather conditions and his failure to maintain aircraft control which resulted in a stall/mush. Factors associated with the accident were the tailwind condition and the soft terrain.NTSB FTW98FA272Accident · 1 fatalField investigationFinal reportAyres S2R-R1340 · Humphrey, ARThe pilot's visual lookout was inadequate for undetermined reasons.NTSB CHI98LA202Accident · No injuriesLimited investigationFinal reportAir Tractor AT-301 · Risco, MOthe pilot's abrupt application of the brakes. Factors contributing to this accident were the pilot's inadequate preflight preparation, his delayed decision to abort the takeoff, and the soft field.NTSB FTW98LA257Accident · 1 fatalLimited investigationFinal reportAero Commander S2R · Hondo, TXThe inadvertent stall due to the pilot's failure to maintain control of the airplane. Factors were the high winds and the wind induced turbulence.NTSB FTW98LA259Accident · No injuriesLimited investigationFinal reportAyres S2R · Watson, ARThe partial loss of engine power due to the disconnection of the propeller governor control as a result of the stripped threads on the propeller governor control push-pull rod. A factor was the lack of suitable terrain for the forced landing.NTSB FTW98LA252Accident · No injuriesLimited investigationFinal reportGrumman-Schweizer G-164B · Coy, ARfailure of the left main tire, which resulted in the pilot's inability to maintain directional control of the airplane during the landing roll.NTSB MIA98LA181Accident · No injuriesLimited investigationFinal reportAir Tractor AT-401 · Rich, MSa loss of engine power for an undetermined reason, resulting in a forced landing and subsequent impact with rough terrain.NTSB CHI98LA230Accident · No injuriesLimited investigationFinal reportGrumman G-164A · Red Lake Falls, MNa locked brake for undetermined reasons.NTSB SEA98LA080Accident · Minor injuriesLimited investigationFinal reportAir Tractor AT-401 · Idaho Falls, IDThe pilot's failure to maintain clearance from a power transmission line during an aerial application flight. Factors include a power line located just beyond the boundary of the field being sprayed, and the pilot's incorrect judgement of the distance between…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 CHI98LA118Accident · No injuriesLimited investigationFinal reportAir Tractor AT-401 · Highmore, SDthe pilot failed to abort the takeoff in a timely manner and could not stop on the runway.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.