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NTSB investigations: Pratt & Whitney JT9D-3A

28 cases on aircraft whose registry engine model is Pratt & Whitney JT9D-3A. 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.

Defining event

Finding

Phase of flight

Aircraft model

Cases per year

19702026

Where

Latest cases

Query with SQL

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 ('52050')) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC

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 ('52050'))
  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 ('52050'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC

Run 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 NYC08IA290Incident · No injuriesIncident investigationFinal reportBoeing 747-209B · Bogota, ColombiaThe combination of fan blade edge contour, variable blade trim, and the high altitude, which resulted in an engine surge.Aug 26, 2008 · N715CK · No damage NTSB ANC05IA020Incident · No injuriesIncident investigationFinal reportBoeing 747-123 · Anchorage, AKThe failure of a high-pressure fuel line fitting, which resulted in an engine fire during takeoff/initial climb.Dec 29, 2004 · N858FT · Minor damage NTSB IAD03IA007Incident · No injuriesIncident investigationFinal reportBoeing 767-222 · Boston, MAAn inadvertant collision with birds during the initial climb out.Oct 19, 2002 · N607UA · Minor damage NTSB ANC99IA025Incident · No injuriesIncident investigationFinal reportBoeing 747-100 · Fairbanks, AKThe improper overhaul of the thrust reverser pneumatic drive unit, and the subsequent failure of the thrust reverser actuator. Factors associated with the incident were the inadequate quality assurance procedures by the overhaul company.Jan 19, 1999 · N481EV · Minor damage NTSB DCA98WA076Incident · No injuriesForeign investigationBoeing 747-400 · Cologne, GermanyJul 31, 1998 · N671UP · Minor damage NTSB MIA96FA013Accident · No injuriesField investigationFinal reportBoeing 747-121 · Miami, FLfailure of the No. 4 engine fifth stage turbine hub due to a cyclic stress rupture for undetermined reasons, which resulted in an uncontained failure of the engine.Oct 23, 1995 · N613FF · Substantial damage NTSB NYC95IA192Incident · No injuriesIncident investigationFinal reportBoeing 747-130 · Jamaica, NYfailure and separation of the #1 engine turbine shroud assembly, which resulted in an uncontained engine failure, a puncture of the #2 outboard reserve fuel tank plate, and a fuel leak.Aug 14, 1995 · N603FF · Minor damage NTSB CHI95LA188Accident · Serious injuriesLimited investigationFinal reportBoeing 767-222 · Champagne, ILan in-flight encounter with turbulence.Jun 20, 1995 · N606UA · No damage NTSB CHI93IA248Incident · No injuriesIncident investigationFinal reportMcdonnell Douglas DC-10-40 · Detroit, MIthe failure of a navigation system (#1 INS) for reason or reasons undetermined.Jul 10, 1993 · N158US · No damage NTSB DCA93MA033Accident · No injuriesClass 1 · MajorFinal reportBoeing 747-121 · Anchorage, AKThe lateral separation of the no. 2 engine pylon due to an encounter with severe or possibly extreme turbulence that resulted in dynamic multi-axis lateral loadings that exceeded the ultimate lateral load-carrying capability of the pylon, which was already…Mar 31, 1993 · N473EV · Substantial damage NTSB BFO92IA046Incident · No injuriesIncident investigationFinal reportBoeing 747-123 · Louisville, KYInadequate obstacle clearance, which resulted in on ground collision with a blast fence. Contributing was inadequate instruction from ground personnel.Mar 19, 1992 · N681UP · Minor damage NTSB DCA89IA066Incident · No injuriesIncident investigationFinal reportMcdonnell Douglas DC-10-40 · Denver, COFatigue failure and separation of a first-stage compressor fan blade.Aug 10, 1989 · N133JC · Minor damage NTSB DCA88IA044Incident · No injuriesIncident investigationFinal reportMcdonnell Douglas DC-10-40 · Boston, MAThe improper installation of the battery ground connection that resulted in premature loosening of the connection and electrical arc ignition of pooled fuel in the cac bilge. The fuel was not drained overboard due to inoperative cac bilge area drain valves.…Mar 30, 1988 · N154US · Minor damage NTSB CHI88IA073Incident · No injuriesIncident investigationFinal reportBoeing 747-227B · Chicago, ILFailure of the tower cab supervisor to assure that coordination between the south local controller and north local controller had been completed. A factor is the failure of FAA tower management to insure there were personnel manning the cab coordinator…Feb 19, 1988 · N635US · 2 aircraft · No damage NTSB CHI88IA040Incident · No injuriesIncident investigationFinal reportBoeing 747-251F · Minneapolis, MNAircraft experienced a loss of aileron ctl when ice formed around aileron control cables and restricted their movement. Water draining through open plenum drains in the main landing gear wheel well froze when exposed to below freezing temperatures at 35,000…Jan 9, 1988 · N618US · No damage NTSB CHI88IA003Incident · No injuriesIncident investigationFinal reportMcdonnell Douglas DC-10-40 · Milwaukee, WIAircraft landed without further incident after exhaust centerbody fell away from the #1 engine during initial climb. The centerbody landed on private property with no property damage. A service bulletin issued by the manufacturer to inspect the centerbody and…Oct 5, 1987 · N157US · Minor damage NTSB DCA85AA015Accident · Serious injuriesFinal reportBoeing 747 SP-09 · San Francisco, CAWhile abv a cloud layer (top at FL 370) nr the jet stream, autoplt was engaged & was in the performance mngmnt sys (pms)mode. The pms provided pitch guidance to hold FL 410, roll guidance to ailerons & spoilers for roll ctl & autothrottle to maint .85 mach…Feb 19, 1985 · N4522V · Substantial damage NTSB SEA84IA233Incident · No injuriesIncident investigationFinal reportBoeing 747-200B · Seattle, WADuring climbout, passing thru 4000 ft MSL, the acft experienced a failure of the #2 engine. The crew reported hearing an explosive sound followed by a drop in fuel flow with N1 speed decreasing to 30% RPM on the #2 engine. The acft returned to Seattle for an…Sep 29, 1984 · N613US · Minor damage NTSB CHI84IA196Incident · No injuriesIncident investigationFinal reportMcDonnell Douglas DC-10-40 · Minneapolis, MNDuring climb from FL330 to FL370 the 1st officer saw sparks and smoke coming from the left side panel under his glare shield. Cockpit lights were turned off and smoke stopped. Flt returned to Minneapolis and landed without incident. Inspection of the acft…May 17, 1984 · N150US · Minor damage NTSB CHI83IA228Incident · No injuriesIncident investigationFinal reportMcdonnell Douglas DC-10-40 · Clarion, PADuring descent in turbulence the crew noted all 3 engines were overtempting and experiencing compressor stalls. Attemptsto reduce throttles did not reduce the temperatures. No 183 engines were shut down. During diversion to a close airport the engines were…May 26, 1983 · N154US · No damage NTSB CHI82IA015Incident · No injuriesClosedDouglas DC-10 · Minneapolis, MNNov 17, 1981 · N156US · Minor damage NTSB UNK79X0111Accident · No injuriesClosedBoeing 747 · Frankfurt, GeorgiaApr 16, 1979 · N617US · Substantial damage NTSB NYC78FA008Accident · No injuriesClosedBoeing 747F · Jamaica, NYNov 17, 1977 · N616US · Substantial damage NTSB NYC77IA041Incident · No injuriesClosedBoeing 747 · London, United KingdomMar 24, 1977 · N747PA · No damage NTSB CHI75AC073Accident · Serious injuriesClosedDouglas DC-10 · Lacrosse, WIMar 13, 1975 · N149US · No damage NTSB OAK75AP013Accident · Serious injuriesClosedBoeing 747 · No.Pacific Ocean (Pacific Ocean)Sep 21, 1974 · N615US · No damage NTSB DCA72AZ002Accident · Serious injuriesClosedBoeing 747 · San Frncsco, CAJul 30, 1971 · N747PA · Substantial damage NTSB FTW70AF046Accident · No injuriesClosedDouglas DC-9 · Harlingen, TXJan 11, 1970 · N1308T · Substantial damage