NTSB investigations, 1999
35 cases where the first occurrence was “Loss of engine power(partial) - mech failure/malf”.
Cases per year
| 1982 | 91 |
|---|---|
| 1983 | 77 |
| 1984 | 88 |
| 1985 | 82 |
| 1986 | 76 |
| 1987 | 58 |
| 1988 | 76 |
| 1989 | 67 |
| 1990 | 74 |
| 1991 | 62 |
| 1992 | 48 |
| 1993 | 53 |
| 1994 | 54 |
| 1995 | 60 |
| 1996 | 42 |
| 1997 | 43 |
| 1998 | 50 |
| 1999 | 35 |
| 2000 | 41 |
| 2001 | 28 |
| 2002 | 36 |
| 2003 | 24 |
| 2004 | 45 |
| 2005 | 33 |
| 2006 | 28 |
| 2007 | 37 |
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\") = 1999
AND c.\"mKey\" IN (SELECT o.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE 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.
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") = 1999 AND c."mKey" IN (SELECT o.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o."occurrenceNumber" = 1 AND o."occurrenceCode" = 352) 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 LAX00FA061Accident · Serious injuriesField investigationFinal reportAerospatiale AS-350D · Avalon, CAA loose pneumatic fitting caused the engine to go to flight idle power at a low altitude, which resulted in a forced landing in hilly terrain.NTSB CHI00LA056Accident · No injuriesLimited investigationFinal reportCessna 210 · South Lyon, MIthe failure of the throttle and the unsuitable terrain encountered by the pilot in the taxi area. Factors were the collapsed nose gear and the rough terrain,NTSB MIA00LA049Accident · Minor injuriesLimited investigationFinal reportPiper PA-32RT-300T · Fort Lauderdale, FLThe failure of the pilot to maintain minimum flying airspeed, (Vso) during takeoff following a partial loss of engine power resulting in the aircraft stalling, an uncontrolled descent, and collision with trees. A factor in the accident was the failure of the…NTSB DEN00GA022Accident · No injuriesFinal reportBell 206 L-3 · Rifle, COa forced landing on rough, unsuitable terrain. A contributing factor was the partial loss of engine power, which resulted from improper maintenance by repair station personnel.NTSB ATL00LA005Accident · Minor injuriesLimited investigationFinal reportCessna 150F · Bay Springs, MSThe pilot's failure to maintain flying speed that resulted in a loss of control and stall. A factor was a stuck exhaust valve.NTSB LAX00LA020Accident · Minor injuriesLimited investigationFinal reportCessna 150H · El Monte, CAA cracked No. 2 engine cylinder, which led to a loss of power. A factor was the ditch in the forced landing area.NTSB DEN00FA007Accident · 1 fatalField investigationFinal reportGardner Varieze · Quemado, NMThe pilot's selection of an unsuitable landing area on which to make a precautionary landing, and his excessive airspeed during landing touchdown. Factors were the ingestion of the foam air filter into the throat of the injector, and the pilot's failure to…NTSB NYC00LA008Accident · Serious injuriesLimited investigationFinal reportPiper PA-28R-200 · Berlin, MDThe failure of the number 3-cylinder exhaust valve stem due to fatigue cracking.NTSB FTW99FA262Accident · 4 fatalField investigationFinal reportBeech A36TC · Franklinton, LAThe pilot's inadvertent stall while attempting to clear trees during a go-around. Factors were the pilot's misjudgment of the airplane's distance and speed during the precautionary landing and the partial loss of engine power due to a perforated piston.NTSB ATL99LA130Accident · No injuriesLimited investigationFinal reportCessna 182P · Summerville, GAThe missing throttle linkage bolt from the carburetor due to an improper engine installation by maintenance personnel. Factors were the tailwind present during the landing roll and the trees.NTSB MIA99FA252Accident · No injuriesField investigationFinal reportBoeing B737-300 · West Palm Beach, FLThe fatigue fracture and separation of the high pressure turbine forward rotating air seal due to a manufacturing defect in a bolt hole that was not detected by the engine manufacturer due to inadequate and ineffective inspection techniques. Contributing to…NTSB FTW99LA247Accident · No injuriesLimited investigationFinal reportRockwell S-2R · Lookeba, OKThe loss of engine power resulting from a cylinder that failed for an undetermined reason.NTSB FTW99LA241Accident · Minor injuriesLimited investigationFinal reportCessna 414 · Alpine, TXThe pilot's improper use of the emergency fuel boost pump, which resulted in excessive fuel flow to the engine and subsequent total loss of left engine power. Factor's were the high density altitude, the pilot exceeding the airplane's weight and balance, the…NTSB DEN99LA145Accident · No injuriesLimited investigationFinal reportCessna 337 · Edgewood, NMBreakage of the safety wire that secured the propeller control cable to the support bracket. Factors were the inability of the pilot to feather the propeller or change propeller rpm, and rough, uneven, and unsuitable terrain on which to make a forced landing.NTSB MIA99LA228Accident · No injuriesLimited investigationFinal reportWilliam John Schulz WJS Jaybird · Tangerine, FLthe pilot's improper torqueing of a rocker arm adjusting jam nut, that resulted in the adjuster loosening, and a partial loss of engine power. This resulted in the pilot making an off airport precautionary landing and subsequent nose over, during which the…NTSB CHI99LA277Accident · No injuriesLimited investigationFinal reportCessna 150M · Sikeston, MOthe loss of engine power due to the stuck exhaust valve. A factor was the lack of suitable terrain available for the forced landing.NTSB DEN99LA131Accident · Serious injuriesLimited investigationFinal reportCessna T210F · Fairplay, COA partial loss of engine power due to a partial failure of the turbocharger.NTSB CHI99LA275Accident · No injuriesLimited investigationFinal reportFairchild 24 C8C · La Fayette, ILthe pilot's failure to obtain/maintain the proper descent rate. A factor to the accident was the partial loss of engine power as a result of the exhaust valve keeper becoming unlocked, which jammed the exhaust valve.NTSB FTW99FA199Accident · 2 fatalField investigationFinal reportSmith, Ted Aerostar Aerostar 601P · Bethany, OKThe pilot's failure to maintain the minimum controllable airspeed. A factor was the disconnected rubber interconnect boot, which resulted in the partial loss of left engine power.NTSB SEA99FA113Accident · 1 fatalField investigationFinal reportAlexander VAN'S RV-8 · Lafayette, ORFatigue of the number two connecting rod end resulting in a fracture at the rod end and release from the crankshaft, an ensuing in-flight fuel fed fire, followed by the pilot's abandoning the aircraft in flight. A contributing factor was pressure on the pilot…NTSB SEA99LA107Accident · No injuriesLimited investigationFinal reportGrumman-Schweizer G-164A · New Plymouth, IDLoss of engine power due to failure of the supercharger impeller. A contributing factor was the ditch.NTSB FTW99LA185Accident · No injuriesLimited investigationFinal reportCessna 150M · Pocahontas, ARThe failure of the carburetor heat control cable which resulted in a partial loss of engine power during initial takeoff climb. A factor was the lack of suitable terrain for the forced landing.NTSB LAX99LA245Accident · No injuriesLimited investigationFinal reportHughes 369D · Oakdale, CAThe disintegration and failure of the oil pump drive spur gear aft bearing, which resulted in failure of the oil pump and subsequent oil starvation to the engine's turbine module. A factor in the accident was the failure of company maintenance personnel to…NTSB ANC99LA082Accident · No injuriesLimited investigationFinal reportMaule M-4-220C · Mcgrath, AKA separation of the number 4 engine cylinder, and a fracture of the number 4 engine connecting rod.NTSB FTW99LA168Accident · No injuriesLimited investigationFinal reportCessna T188C · Panhandle, TXThe partial loss of engine power as a result of the low compression in the number 5 cylinder. A factor was the lack of suitable terrain for the forced landing.NTSB MIA99LA166Accident · No injuriesLimited investigationFinal reportCessna 182E · Rolling Fork, MSImproper torqueing of the connecting rod bolts which resulted in the bolts being loose and rubbing in the dowel area which resulted in fatigue emanation and cracking and separation of the number 3 connecting rod after bolt failure.NTSB CHI99FA163Accident · 4 fatalField investigationFinal reportCessna 421B · Jefferson City, MOthe pilot failed to maintain control of the airplane. A factor was the partial loss of power due to the exhaust valve fatigue failure.NTSB CHI99LA162Accident · No injuriesLimited investigationFinal reportGrumman-Schweizer G-164B · Buxton, NDthe number one cylinder's separation, the pilot's visual lookout not possible through the oil given off by the number one cylinder, and the embankment. A factor in the accident was the oil.NTSB ANC99LA060Accident · Serious injuriesLimited investigationFinal reportAeronca 15AC · Pedro Bay, AKA separation of the number 3 engine cylinder head assembly, and a burned through fuel line.NTSB MIA99LA137Accident · Serious injuriesLimited investigationFinal reportBeech A36 · Courtland, ALThe failure of maintenance personnel from Signature Flight Support to assure that a cotter pin was installed at the air throttle assembly lever following installation of the overhauled fuel control valve onto the overhauled engine. This resulted in the…NTSB MIA99LA117Accident · Serious injuriesLimited investigationFinal reportWaco YMF-5 · Boca Raton, FLThe pilot's failure to select a suitable forced landing site following a partial loss of engine power due to failed cylinder holdddown studs, and the subsequent collision with trees. A factor in the accident was the reduced forward visibility from the dual…NTSB DEN99LA061Accident · No injuriesLimited investigationFinal reportMooney M20K · Medicine Bow, WYA fluctuating turbine inlet temperature and resulting loss of engine power for undetermined reasons. Factors were the rough, unsuitable terrain on which to make a forced landing.NTSB FTW99LA085Accident · Minor injuriesLimited investigationFinal reportEurocopter Colibri EC120B · Springtown, TXThe improper touchdown executed by the pilot. Factors were the tail wind condition, and the manufacturer's inadequate design of the P3 pipe supports, which resulted in a fatigue fracture of the P3 pipe.NTSB NYC99LA065Accident · No injuriesLimited investigationFinal reportStinson 108-3 · Bristol, CTThe partial loss of power due to the failure of a fatigued connecting rod bolt.NTSB DEN99TA031Accident · No injuriesFinal reportHughes 369D · Woodruff, UTA partial loss of engine power due to erosion in the compressor assembly module. Factors were a missing rotating labyrinth seal, the installation of which had not been performed by unknown maintenance personnel.