NTSB investigations
1,408 cases where the first occurrence was “Loss of engine power(partial) - mech failure/malf”.
Cases, newest first
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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 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 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 LAX85LA351Accident · No injuriesLimited investigationFinal reportCessna 172P · Saint Helena, CADuring a local personal flt, the plt said the 'engine began to run rough a shake violently.' With not enough power to maintain altitude, the plt elected to make an emergency landing in a field, however, overran the field after touchdown and collided with…NTSB FTW85LA318Accident · No injuriesLimited investigationFinal reportPiper PA-28-140 · May, TXThe plt stated the eng RPM dropped to 1500 during level cruise flt at 4200 ft MSL. He could not regain pwr. He diverted the flt and attempted to reach the brownwood, TX, arpt but did not have sufficient alt. A forced landing was made in a rugged, heavily…NTSB DEN85LA218Accident · No injuriesLimited investigationFinal reportDowner Aircraft Industries REP. Seabee RC-3 · Haugan, MTThe plt had reconditioned N6305K and was flying the acft to his home in Texas. He continued to state that while climbing through 6500 ft, he heard an unusual noise followed by a substantial loss in pwr. The plt executed an emergency landing on a forest…NTSB FTW85LA315Accident · Minor injuriesLimited investigationFinal reportBell 206B · Damon, TXThe plt experienced an eng deceleration to flt idle while cruising 1000 MSL. He autorotated into trees in a heavily wooded area. A subsequent eng disassembly and examination revealed the pwr control line, p/n 6848471-B, was broken at its attaching 'b' nut…NTSB FTW85FA310Accident · 1 fatalField investigationFinal reportBell UH-1B · Saint James, LAAcft was at a 150' hover preparing to pick up a log when it experienced a power loss. Witnesses stated that they heard a loud 'bang' and the pilot radioed 'get out of the way'. Acft autorotated thru 60' to 80' trees with very low rotor RPM and impacted with…NTSB FTW85LA294Accident · No injuriesLimited investigationFinal reportNorth American AT-6 · Port Isabel, TXThe acft was substantially damaged when it undershot the runway and cartwheeled during an emergency landing following an engine failure in the traffic pattern. The plt reported that initial examination of the engine revealed that initial examination of the…NTSB DEN85LA206Accident · No injuriesLimited investigationFinal reportPiper PA-22 · Boulder, COAccording to the plt, he was approaching the Boulder municipal arpt, Boulder, Colorado, for a VFR landing when his engine failed to develop sufficient power to sustain flight. A forced landing was made to a farmer's field. The acft sustained substantial…NTSB MKC85FA168Accident · 1 fatalField investigationFinal reportSchubert Cassutt Sport · Admire, KSAt 0847 CDT, July 27, 1985 N1115G radioed a nearby fss. The station that was called was closed but another fss heard thecall. During the transmission the plt reported that he had an eng problem, was pumping oil overboard and could not see outside because the…NTSB ATL85IA225Incident · No injuriesIncident investigationFinal reportBeech 95-B55 · Gilbertsville, KYThe acft made a precautionary lndg after the plt feathered the left eng because of vibration. Post accident exam showed a failed cylinder in the engNTSB MKC85LA166Accident · Minor injuriesLimited investigationFinal reportJames Gress Quickie · Fenton, MOWhile taking off, the plt noted a partial loss of eng power during the initial climb. He was unable to maintain alt & tried to maneuver around trees near the departure end of the rwy. However, the acft descended into the tree tops, then crashed onto the roof…NTSB NYC85LA186Accident · No injuriesLimited investigationFinal reportPiper PA-18-95 · Stowe, VTDuring cruise flt, the plt heard a loud knocking coming from the eng and a decrease in oil pressure. During the landing in a fld, the landing gear collapsed and the acft ground looped. Examination of the eng disclosed that the hydraulic lifters of three of…NTSB ATL85LA214Accident · Minor injuriesLimited investigationFinal reportWag-Aero Cubbie (J-3) · Stockbridge, GADuring a departure, the eng had a partial loss of power. The plt reported that after climbing to about 75 ft, neither the acft's speed nor alt would increase. He lowered the nose to increase the eng RPM & speed, but the eng did not respond. Subsequently, the…NTSB NYC85LA177Accident · No injuriesLimited investigationFinal reportSikorsky S-76A · Hartford, CTThe apch to the pvt helipad was uneventful up to the last 100 ft where the plts noticed a high sink rate. The plt increased collective to correct for the situation. At about 20 ft from touchdown point the plt noticed a decrease in RPM and realized that they…NTSB CHI85LA297Accident · No injuriesLimited investigationFinal reportPiper PA-22 · Iola, WIUpon takeoff at approximately 100 ft AGL the pilot experienced a partial power loss which necessitated a forced landing in a soft, wet potato field. The pilot had time to switch fuel tanks and magnetos prior to touchdown, but the power loss remained constant.…NTSB NYC85LA169Accident · Minor injuriesLimited investigationFinal reportPiper PA-28-140 · Cherry Valley, NYDurng a climb to cruise, theengine RPM dropped to 2000. The pilot check the carburetor heat and other instruments and did not find any abnormalities. The engine RPM dropped a second time to 1800 a sound described by the pilot as a loud band was heard and the…NTSB CHI85LA289Accident · No injuriesLimited investigationFinal reportBensen B8M · Hebron, OHThe gyrocopter lost partial pwr while in the traffic pattern and the plt executed an autorotation into a corn field. The throttle cable was found loose after the accident.NTSB ATL85LA208Accident · Minor injuriesLimited investigationFinal reportCessna T303 · Shelby, NCThe plt stated that after takeoff from rwy 23, he noticed oil coming from the left eng. He initiated a turn to land on rwy 05 but was unable to line up with the rwy. He elected to go-around and when he added full power the left eng oil pressure went to zero…NTSB CHI85LA275Accident · No injuriesLimited investigationFinal reportBell 47G-3B-1 · Donaldson, MNWhen the plt applied pwr to level off while entering a spray the eng did not produce sufficient pwr to stop the descent. He attempted a run on landing but the uneven terrain caused substantial damage to the helicopter. Inspection of the eng revealed the…NTSB LAX85LA305Accident · No injuriesLimited investigationFinal reportHiller UH-12E · Gonzales, CAWhile cruising during an ag flight the acft's eng began losing pwr. At the time the acft was about 50 ft AGL & was travelling at 50 mph. The plt made a forced ldg onto a nearby plowed fld. Upon touchdown the rt skid dug into a furrow & the acft rolled over.…NTSB ATL85LA200Accident · Minor injuriesLimited investigationFinal reportAmerican AA-1A · Hatteras, NCWhile on a flt to Hatteras, NC, the eng ran rough, so after landing, the plt got an auto mechanic to remove the spark plugs. The lower plugs on the left side were lead fowled & were cleaned with a wire brush. During takeoff on the next flt, the eng lost…NTSB MKC85LA141Accident · Minor injuriesLimited investigationFinal reportCessna 150M · Rushville, MOShortly after the plt departed on a flt, the eng lost power while the acft was cruising at 1800 ft MSL over hilly terrain. The plt reported that the eng speed dropped to 800 RPM & he was unable to correct the situation. During a forced landing on soft…NTSB FTW85LA266Accident · No injuriesLimited investigationFinal reportI.C.A. Brasov IS-28B2 · Georgetown, TXThe accident occurred during an glider launch. The tow acft was unable to gain alt, and turned back to the arpt to release the glider. The tow acft began to sink into the trees and was forced to release the glider beyond safe gliding distance to the rwy. The…NTSB LAX85LA284Accident · No injuriesLimited investigationFinal reportGrumman G-164 · Glenn, CADuring initial climb on an ag flight the plt reported experiencing a loss of eng power. From the acft's alt of 30 ft AGL the plt attempted an emergency landing but did not have sufficient alt to negotiate a turn back toward the road from which he had…NTSB DCA85AA023Accident · Serious injuriesFinal reportGeneral Dynamics 240-27 · West Trenton, NJThe coplt bgn takeoff (tkof) with 2700 RPM & 52 to 53.5' of manifold pressure (mp). Wtr injection was not used altho 12 gal was available. At 150 to 250 ft AGL, the l eng lost pwr & the l prop autofeathered. The capt took control (ctl) & took action to verify…NTSB SEA85LA178Accident · No injuriesLimited investigationFinal reportBell 47G-3B-1 · Idaho City, IDWhile the student plt was on a x-country flt, the eng lost power after the supercharger failed. The plt stated that he was unable to maintain altitude & RPM; he subsequently made a forced landing in a heavily timbered, mountainous area.NTSB MIA85LA189Accident · No injuriesLimited investigationFinal reportLake LA-4-200 · Kissimmee, FLThe plt stated that just after takeoff, at about 800 ft alt the eng lost pwr. He then made an emerg landing in a fld and the acft struck a ditch during the landing roll. Post accident examination revealed both magneto cases were cracked and the #1 cly fuel…NTSB CHI85FEX02Accident · Serious injuriesFinal reportCessna 310C · Greenfield, INWhile en route, the l eng suddenly lost power & would not restart, so the plt feathered the l prop. After letting it cool aprx 5 min, he tried restarting it again, but still was unable. He stated he thought he then secured (feathered) the l eng. The plt…NTSB ATL85FA181Accident · Minor injuriesField investigationFinal reportPiper PA-32R-301T · Newnan, GAThe eng started running rough then quit. The plt landed in awarehouse parking lot between two rows of 40-45 foot trailers. Exam of the eng revealed that the sharp edges of the roll pin had worn through the centering spacer for the tach drive ass'y. which then…NTSB BFO85FA049Accident · No injuriesField investigationFinal reportBell 222U · Milford, VAThe helo was in level cruise flt at 1500 ft and 115 KTS when the no. 2 eng chip light illuminated, accompanied by lowering oil pressure. The plt reduced pwr and started a rt turn to return to base when half way thru the turn a loud bang occurred followed by…NTSB MIA85LA177Accident · Minor injuriesLimited investigationFinal reportPiper PA-18 · St.Petersburg, FLThe pilot was assigned an aircraft with a recently overhauled engine to tow a banner. He preflighted, started and ran-up the engine 3 times. Each time the engine ran rough and lost RPM on magneto checks. After each occurrence, companymaintenance personnel…NTSB NYC85FHJ03Accident · Minor injuriesFinal reportPiper PA-28-161 · Lewisboro, NYThe acft nosed over on a golf course after striking trees during a forced lndg. The acft had lost power during climb to cruise. Post acc exam showed a failed exhaust valveNTSB MKC85FA105Accident · Minor injuriesField investigationFinal reportBeech E-90 · Pine Bluff, ARA simulated eng failure was initiated by the chk airman at 200 AGL. The plt followed the emergency procedures and advanced the pwr levers to bring pwr back to the engine. The plt then noticed the eng failed and had insufficient alt to get an air restart. The…NTSB SEA85LA119Accident · No injuriesLimited investigationFinal reportCessna 150M · Santa Rosa, CAWhile on a short local flight to a costal area and return. The engine lost some power. Carburetor heat was applied but no increase in power was noted. The plt then set up a glide with intentions of making a landing onto the beach area. At about 500 feet…NTSB LAX85FA251Accident · 1 fatalField investigationFinal reportBeech A-36 · Hayward, CAAccording to the ATCT tapes, 3 mins elapsed between the time the acft called for taxi from parking to ready for takeoff at the active rwy. Just after liftoff the acft experienced a 'missing' & 'backfiring' engine as reported by witnesses. Plt radioed the…NTSB LAX85LA250Accident · No injuriesLimited investigationFinal reportRockwell S-2R · Colusa, CADuring an ag flight, the eng began to severly backfire & lose power. The plt attempted to make a forced ldg on the nearby duster airstrip but had insufficient altitude to be properly aligned with the rwy. The acft overan the edge of the end disclosed that its…NTSB FTW85LA215Accident · Serious injuriesLimited investigationFinal reportCessna 210E · Natchitoches, LAThe pilot experienced partial power loss due to ingestion of the alternate air door shaft needle bearing rollers into the engine, and cross firing of the right magneto. He reportedly closed the throttle and made a gear up forced landing. The aircraft slid…NTSB FTW85LA194Accident · No injuriesLimited investigationFinal reportPiper PA-31-350 · Sallisaw, OKAn annual inspn had just been completed (4/22/85) & each eng had about 1 hr of flt time. The plt stated that he took off & climbed to cruise at 9000 ft, then closed the cowl flaps & set the fuel settings for 75% power. While en route, he noted oil trailing…NTSB CHI85LA173Accident · No injuriesLimited investigationFinal reportCessna 172M · Macedonia, OHWhile cruising at 2500 ft MSL, the eng developed a severe vibration accompanied by a partial pwr loss. The plt made a forced landing uphill on an inclined field. He initiated a sharp left turn to avoid a house. At that time, the nose gearcollapsed & the acft…NTSB CHI85LA172Accident · No injuriesLimited investigationFinal reportErcoupe 415-CD · St. Paul, MNShortly after takeoff, while climbing thru aprx 700 ft AGL, the eng developed a severe vibration & a loud 'clanking' sound. These were followed by a partial loss of power. During a subsequent forced landing, the acft's right wing hit a tree & the nose gear…NTSB ATL85LA144Accident · No injuriesLimited investigationFinal reportBellanca 7AC · Germantown, KYDuring cruise flt over hilly terrain, the plt noted a power loss that he described as the eng 'dying back and then catching again.' He was unable to maintain alt & selected a field for a landing. During the apch, the left main gear & prop hit 2 power lines.…NTSB ATL85LA138Accident · No injuriesLimited investigationFinal reportCessna 152 · Jacksonville, ALPilot experienced power failure during climbout. A forced landing was made in a plowed fld and the acft nosed over. Examination of the wreckage revealed that the carburetor airbox seal had deteriorated and lodged in the throat of the carburetor. Last annual…NTSB FTW85FA188Accident · Serious injuriesField investigationFinal reportBell UH-1B · Boutte, LAThe plt had stabilized acft in a 125' hover, prior to picking up a load, when the eng spooled down and acft entered talltrees with low rotor RPM and pitched nose down as it descended thru the trees. Ground witnesses heard 2 loud 'bangs' prior to the acft…NTSB CHI85LA163Accident · No injuriesLimited investigationFinal reportCessna 150L · East Liverpool, OHWhile on a night/solo x-country flt, the eng had a partial loss of power. The student attempted to make an emergency landing at a nearby arpt, but the rwy lights were not illuminated. At first, the student did not remember that the lights could be controlled…NTSB SEA85LA088Accident · No injuriesLimited investigationFinal reportCessna 172M · Mulino, ORThe plt pushed the throttle forward to add power during final approach and the engine ceased operating. A forced landing was made onto a cabbage patch and the nose gear sheared off. The acft then nosed over. Investigation revealed the throttle cable housing…NTSB SEA85LA076Accident · No injuriesLimited investigationFinal reportWeatherly 201B · Davenport, WAA vibration started in the engine and while the plt was monitoring the engine gauges he noted a loss of all oil pressure. A landing was made on a field and during rollout the left main gear was torn off when it struck a mound of dirt. The acft then struck…NTSB MKC85LA071Accident · No injuriesLimited investigationFinal reportCessna 152 · Norwalk, IAApproaching des moines airport the plt rptd to approach control of eng problems and wanted to know what airport was close for an precautionary landing. An attempt was made to land at an airstrip 3 mi east of his present posn. Unable to land at the airstrip…NTSB FTW85LA134Accident · Serious injuriesLimited investigationFinal reportCessna 177 · Houston, TXAfter the fourth touch-and-go landing on rwy 17R power was applied and a normal climb iniiated. At about 400 ft AGL power was reduced; the engine developed heavy vibrations and aprx 50% power loss. The CFI took control from the private plt receiving dual…NTSB LAX85FA159Accident · 2 fatalField investigationFinal reportMooney M-20-E · Oceanside, CAGnd witnesses reported the acft engine began to misfire shortly after departing ry 24 at Oceanside muni arpt Oceanside, CA. When the acft reached the departure end of the ry at ab out 100 ft AGL, the plt began a left turn. Prior to completing the turn, the…NTSB CHI85LA110Accident · No injuriesLimited investigationFinal reportBrantly Helicopter B-2 · Huntingburg, INThe acft experienced a partial power loss and made a hard autorotative lndg during a training flt. Investigation of the eng revealed mistiming of the left mag. The eng during tests also ran hot until the addition of a cooling shroud. The other significant…NTSB NYC85LA055Accident · No injuriesLimited investigationFinal reportCessna 206G · Endicott, NYThe plt stated that the eng RPM dropped to idle when he made his second pwr reduction on downwind in preparation for landing. The throttle could not be pushed in when an attempt to add pwr was made. The acft touched down short of the rwy and came to rest aprx…