NTSB investigations, 1998
50 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\") = 1998
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") = 1998 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 FTW99LA036Accident · Serious injuriesLimited investigationFinal reportPiper PA-28-160 · Greenville, TXThe partial loss of engine power due to a blocked muffler exhaust pipe/manifold as a result of a loose internal baffle. Factors were the improper maintenance by other maintenance personnel and the lack of suitable terrain for the forced landing.NTSB ATL99FA011Accident · 1 fatalField investigationFinal reportPiper PA-32R-300 · Roswell, GAA loss of engine power due to the failure of the number five connecting rod assembly as a result of fatigue cracks that were initiated in areas of galling. A factor was the lack of suitable terrain for a forced landing.NTSB DEN99LA015Accident · Serious injuriesLimited investigationFinal reportMooney M20C · Englewood, COThe undertorquing of the camshaft gear retaining bolts during engine overhaul by maintenance personnel. A factor was the unsuitable terrain for a forced landing.NTSB LAX99LA007Accident · Minor injuriesLimited investigationFinal reportCessna 190 · Lost Hills, CAA loss of engine power due to fatigue failure of the number 4 cylinder articulating rod.NTSB MIA99FA005Accident · No injuriesField investigationFinal reportBoeing 727-224 · Miami, FLThe catastrophic failure of the 8th stage high pressure compressor disk from cadmium embrittlement as a result of improper adherence to the prescribed plating procedures and requirements by the company that last plated the disk. Contributing to the accident…NTSB CHI98LA366Accident · No injuriesLimited investigationFinal reportBeech BE-35 · Point Lookout, MOThe pilot's continued flight with a known deficiency in equipment. Contributing to the accident was the maintenance adjustment that was not completed by the mechanic.NTSB MIA98FA250Accident · 5 fatalField investigationFinal reportPiper Aerostar 600 · N. Myrtle Beach, SCThe pilot's failure to maintain airspeed (Vs) during a single engine approach resulting in an inadvertent stall. Factors contributing to the accident were a fatigue crack in the exhaust pipe in the right engine, the aircraft weight and balance was exceeded,…NTSB FTW98LA404Accident · No injuriesLimited investigationFinal reportPiper PA-28RT-201T · Duck Creek, UTLoose intake valve rocker arm studs that allowed a loss of compression and a loss of oil. A factor was unsuitable terrain on which to make a forced landing and poles next to a cattle guard.NTSB CHI98TA354Accident · No injuriesFinal reportBell 206B-3 · Hinkley, MNLoss of engine power due to failure of the engine governor.NTSB FTW98LA385Accident · Serious injuriesLimited investigationFinal reportJobe'S TE-1 · Alamogordo, NMThe improper maintenance procedures (failure to preserve the engine during numerous storage periods over 30 days) and the lack of suitable terrain for a forced landing. Factors were the pilot's lack of experience in type of aircraft and the high density…NTSB NYC98FA179Accident · 1 fatalField investigationFinal reportSmith, Ted Aerostar TS-600 · Marietta, PAThe failure of the pilot to maintain airspeed during a precautionary landing which resulted in a loss of control while operating with one engine shutdown. An additional cause was the improper maintenance procedures that resulted in the #5 cylinder not being…NTSB CHI98LA355Accident · No injuriesLimited investigationFinal reportAir Tractor AT-401 · N. Ottawa Twp., MNA loss of engine power due to a worn piston ring. A related factor was the owner exceeded the manufacturer's recommended engine overhaul.NTSB FTW98LA367Accident · Minor injuriesLimited investigationFinal reportAerospatiale SA315B · Naturita, COPartial loss of engine power resulting from heat induced deterioration of the gas generator turbine. Factors were a forced landing in hilly unsuitable terrain containing mature trees.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 LAX98LA265Accident · No injuriesLimited investigationFinal reportRaymond C. Voegele Mini IMP RC-2 · Sonoma, CAA loss of power due to a loose magneto cap and a binding throttle control cable. The deficiencies were the result of the owner/pilot's improper installation and/or adjustments.NTSB SEA98GA159Accident · No injuriesFinal reportBell 212 · Juntura, ORThe pilot-in-command's failure to maintain proper clearance between the long line cable and hell hole structure resulting in airframe contact and binding of the cable. This resulted in separation/disabling of the fuel control solenoid and a subsequent…NTSB FTW98LA342Accident · No injuriesLimited investigationFinal reportEnstrom F-28F · Bryce Canyon, UTA partial loss of engine power due to an oil leak in the turbocharger system. Factors were high vegetation and high density altitude.NTSB CHI98LA298Accident · No injuriesLimited investigationFinal reportPiper PA28-R-200 · W. Frankfort, INThe failure of the fuel mixture control linkage, and inadequate inspections by maintenance personnel.NTSB LAX98LA250Accident · Minor injuriesLimited investigationFinal reportCessna 177 · Corona, CAThe loss of engine power due to a partially closed fuel shutoff valve as a result of improper maintenance installation.NTSB LAX98LA244Accident · Minor injuriesLimited investigationFinal reportBellanca BL-17 · Winnemucca, NVLoss of engine power due to a missing cotter key and jam nut, the use of an improper nonapproved part by other maintenance personnel, and failure to safety the installation which subsequently lead to a throttle/carburetor linkage disconnect.NTSB ANC98LA109Accident · No injuriesLimited investigationFinal reportEnstrom F-28F · Skwentna, AKA loss of engine power due to a fractured number three cylinder intake manifold flange, and the pilot's inability to maintain the proper rate of descent during the autorotation flare. A contributing factor associated with the accident was the downwind…NTSB NYC98LA152Accident · Minor injuriesLimited investigationFinal reportPiper PA-28-151 · Newport, NHThe seizure of the throttle shaft, due to the overhaul facilities' failure to insure all metal fragments had been removed from the carburetor before inserting the throttle shaft after reaming the throttle shaft bushings.NTSB LAX98LA243Accident · Minor injuriesLimited investigationFinal reportBeech 35 · Temecula, CAA partial loss of engine power due to a disconnected throttle linkage, which was the result of an inadequate maintenance installation/inspection.NTSB CHI98LA264Accident · Minor injuriesLimited investigationFinal reportGrumman G-164 · Hoxie, KSthe total failure of the engine's left magneto.NTSB NYC98LA149Accident · No injuriesLimited investigationFinal reportCessna 152 · Philippi, WVWas the failure of an exhaust valve. A factor in the accident was the unsuitable landing area encountered by the pilot.NTSB CHI98LA257Accident · No injuriesLimited investigationFinal reportPiper PA-28-140 · Napoleon, MIthe pilot inadequate pre-flight planning. Factors in this accident were the airplane's weight and balance limitations had been exceeded by the pilot and an improper top overhaul of the engine's cylinder by the mechanic.NTSB MIA98FA200Accident · 1 fatalField investigationFinal reportPiper PA-31-310 · Miami, FLThe pilot's inadequate preflight inspection which led to fuel contamination and subsequent loss of engine power. Also causal was the pilot's failure to maintain single engine flying speed (VMC).NTSB ANC98LA099Accident · Minor injuriesLimited investigationFinal reportCessna 207 · King Salmon, AKThe disconnection of the mixture control cable from the mixture control arm. Factors associated with this accident were the inadequate 100 hour inspections performed by company mechanics.NTSB LAX98LA230Accident · No injuriesLimited investigationFinal reportPiper PA-18-150 · Hyampom, CAInadequate annual inspection that resulted in a partial loss of engine power due to a missing bolt, nut, and cotter pin from the throttle/carburetor assembly.NTSB SEA98LA103Accident · No injuriesLimited investigationFinal reportCasa BU-131 · Harrisburg, ORA failed bracket attaching the throttle linkage, which resulted in the inability to control power, and unsuitable terrain for a successful forced landing. Factors include soft terrain with high vegetation.NTSB ATL98LA084Accident · No injuriesLimited investigationFinal reportBellanca 17-31A · Millry, ALThe fracture of the #2 cylinder connecting rod which resulted in partial loss of engine power and subsequent forced landing. A factor in the accident was the rough terrain.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 LAX98LA182Accident · Minor injuriesLimited investigationFinal reportCessna 150M · Livermore, CAThe missing nut/cotter pin on the throttle attachment assembly which resulted in the pilot's inability to control engine power, and the hidden obstruction (hole) in the landing area. A factor was the high vegetation.NTSB ANC98LA058Accident · No injuriesLimited investigationFinal reportLuscombe 8A · Paxson, AKA loss of engine power due to a failure of the engine's number 3 intake valve. A factor in the accident was the unsuitable terrain for a forced landing.NTSB SEA98FA077Accident · No injuriesField investigationFinal reportGarlick UH-1H · Hope, IDFailure of a misaligned main bearing in the engine. Factors include returning a previously unairworthy-tagged engine to service by the operator's maintenance personnel without sufficient information to identify and correct an unknown engine deficiency.NTSB MIA98LA163Accident · Serious injuriesLimited investigationFinal reportNanchang CJ-6A · Pageland, SCWas the inadvertent stall of the airplane by the pilot-in-command while attempting to clear trees beneath the airplane during the descent for the forced landing. Contributing to the accident was the partial loss of engine power due to separation of the No.9…NTSB LAX98LA159Accident · No injuriesLimited investigationFinal reportBell 206B · Temecula, CAA loss of engine power due to a deteriorated compressor air seal which resulted in the fracture and separation of several stator vanes. Deterioration was not detected as a result of an inadequate maintenance inspection frequency.NTSB MIA98LA158Accident · No injuriesLimited investigationFinal reportDavid McElhannon Avid MK. 4 · Elberton, GAA loss of engine power due to a failed combustion assembly, expansion seal.NTSB LAX98IA158Incident · No injuriesIncident investigationFinal reportNorth American NA265-65 · Palm Springs, CAthe fatigue failure and uncontained separation of the high pressure impeller in the No. 2 engine during the takeoff roll. While the impeller showed evidence of a subsurface fatigue origin, the percipient cause of the separation was not definitively determined.NTSB MIA98LA159Accident · No injuriesLimited investigationFinal reportPiper PA-28-140 · Luvurne, ALThe loss of engine power due to a leaking engine oil seal, resulting in a forced landing, and subsequent impact with the ground. A factor in this accident was improper maintenance and checks after rebuilding and reinstalling the airplane's engine.NTSB FTW98LA198Accident · No injuriesLimited investigationFinal reportCessna 172N · Parker, COa fractured #1 exhaust valve rocker arm stud, which subsequently resulted in loss of engine power and a forced landing. The lack of suitable terrain in the forced landing area was a related factor.NTSB LAX98LA139Accident · No injuriesLimited investigationFinal reportBell 206B · Grand Canyon, AZThe malfunction and erratic speed control of the engine's governor, and the flight instructor's delayed remedial action.NTSB FTW98FA186Accident · 2 fatalField investigationFinal reportFoster/Hilsman Q2 · Siloam Springs, ARThe pilot's failure to maintain aircraft control during the forced landing. Factors were the failure of the #4 cylinder head which resulted in a partial loss of engine power and the co-owners/builders' failure to perform a condition inspection of the…NTSB MIA98LA130Accident · 1 fatalLimited investigationFinal reportStarck Auriga · Collegedale, TNA leak in the electric fuel boost pump caused by an improperly sized 'O' ring installation and the pilot's failure to maintain airspeed during an approach to a forced landing resulting in a stall.NTSB FTW98TA152Accident · Serious injuriesFinal reportBell OH-58C · Dulce, NMThe partial loss of engine power due to a disconnected bleed air line to the fuel controller and the unsuitable terrain for a forced landing. Factors were the loose B-nut, the inadequate maintenance by unknown personnel, insufficient standards/requirements…NTSB SEA98LA046Accident · Minor injuriesLimited investigationFinal reportCessna 152 · Mcminnville, ORDisconnection of the throttle cable at the throttle-to-carburetor adapter plate and the failure of the student pilot to shut the aircraft's engine down once a safe landing was assured. Factors contributing to the accident were the soft terrain and overloading…NTSB MIA98LA082Accident · No injuriesLimited investigationFinal reportPiper PA-28-140 · Graniteville, SCfailure of the number three exhaust valve, which resulted in loss of engine power and a forced landing. Related factors were: the obstructions (earthen embankment and fence) in the emergency (forced) landing area.NTSB ANC98FA019Accident · 1 fatalField investigationFinal reportCessna 207 · Homer, AKA fatigue failure, and partial separation of the number 6 engine cylinder head assembly, the operator's inadequate progressive inspection performed by company maintenance personnel, and the pilot's inadvertent stall during a maneuvering turn toward an…NTSB MIA98LA066Accident · Serious injuriesLimited investigationFinal reportCessna 152 · Ochopee, FLpartial loss of engine power due to a fractured number 4 exhaust valve, which resulted in a forced landing; and the lack of sufficient airspeed to maneuver over power lines during an attempt to abort (go around from) an emergency landing, which resulted in an…NTSB LAX98FA068Accident · 1 fatalField investigationFinal reportCessna 182P · Salinas, CAA loss of engine power due to a missing valve keeper. Also causal was the failure by engine maintenance personnel during engine top overhaul to install the second valve keeper in the No. 3 cylinder exhaust valve and the failure of inspection personnel to…