# NTSB investigations: Loss of engine power(partial) - mech failure/malf NTSB aviation accident and incident investigations since 1962: the probable cause, findings, aircraft, crew, weather and docket of each, linked to the FAA registry and the FAA’s own reports. Page 6 of 29 · 1,408 cases ## Cases, newest first - [NTSB DEN00LA130](https://openairdocs.org/ntsb/DEN00LA130.md): Cessna 150L · Reserve, NM · Accident · No injuries · Limited investigation · Final report · Jul 15, 2000 · N18124 · Substantial damage > Seizure of the starter clutch assembly needle bearing, which caused the engine to develop less than full rated power and the airplane to achieve less than expected climb performance. Factors were noncompliance of a service bulletin, unsuitable terrain on… - [NTSB LAX00LA271](https://openairdocs.org/ntsb/LAX00LA271.md): Air Tractor AT-401 · Ripley, CA · Accident · No injuries · Limited investigation · Final report · Jul 13, 2000 · N4508Y · Substantial damage > A loss of engine power due to the separation of a connecting rod from the crankshaft. - [NTSB LAX00LA261](https://openairdocs.org/ntsb/LAX00LA261.md): Grumman G-164A · Gridley, CA · Accident · No injuries · Limited investigation · Final report · Jul 11, 2000 · N897X · Substantial damage > A partial loss of engine power due to the failure of an exhaust valve during an aerial application flight. - [NTSB MIA00LA207](https://openairdocs.org/ntsb/MIA00LA207.md): Cessna P210N · Boone, NC · Accident · Serious injuries · Limited investigation · Final report · Jul 7, 2000 · N7VZ · Substantial damage > The failure of the inter-cooler duct connecting the inter-cooler to the engine due to inadequate attachment of the inter-cooler to the aircraft which resulted in loss of turbocharger air overboard and loss of engine power and damage to the aircraft during a… - [NTSB FTW00LA190](https://openairdocs.org/ntsb/FTW00LA190.md): Mooney M20C · Whitney, TX · Accident · Minor injuries · Limited investigation · Final report · Jun 29, 2000 · N6932N · Substantial damage > The partial loss of engine power, which resulted from the worn carburetor. - [NTSB LAX00LA260](https://openairdocs.org/ntsb/LAX00LA260.md): Cessna 172N · Santa Ana, CA · Accident · No injuries · Limited investigation · Final report · Jun 22, 2000 · N7598D · Substantial damage > The loss of engine power during the initial takeoff climb, at too low an altitude to afford remedial action, because of an ingested valve, and the airplane's subsequent collision with the ground adjacent to the runway. - [NTSB FTW00LA175](https://openairdocs.org/ntsb/FTW00LA175.md): Cessna 177 · Nacogdoches, TX · Accident · Serious injuries · Limited investigation · Final report · Jun 8, 2000 · N29383 · Substantial damage > the loss of engine power during a go-around resulting from the failure of the worn carburetor heat control cable. A contributing factor was the lack of suitable terrain for the forced landing. - [NTSB FTW00LA160](https://openairdocs.org/ntsb/FTW00LA160.md): Cessna 195 · Kaufman, TX · Accident · Minor injuries · Limited investigation · Final report · May 28, 2000 · N9876A · Substantial damage > The failure of the left magneto, which resulted in a partial loss of engine power. Factors were the fouled number 3, 4, and 5 rear spark plugs and the lack of suitable terrain for the precautionary landing. - [NTSB NYC00LA141](https://openairdocs.org/ntsb/NYC00LA141.md): Carlson Criquet · East Palestine, OH · Accident · 1 fatal · Limited investigation · Final report · May 24, 2000 · N22CA · Destroyed > The failure of the powerplant to produce adequate power for undetermined reasons, and the pilot's continued operation of the airplane with known deficiencies. - [NTSB NYC00LA129](https://openairdocs.org/ntsb/NYC00LA129.md): Cessna 120 · Beaumont, PA · Accident · No injuries · Limited investigation · Final report · May 6, 2000 · N2842N · Substantial damage > A crack in the crankcase which resulted in a partial power loss. - [NTSB FTW00LA138](https://openairdocs.org/ntsb/FTW00LA138.md): Noteman RV6-A · Kanab, UT · Accident · Minor injuries · Limited investigation · Final report · May 6, 2000 · N456TP · Substantial damage > The partial loss of engine power as result of the failure of an exhaust valve. A factor was the lack of suitable terrain for the forced landing. - [NTSB NYC00FA122](https://openairdocs.org/ntsb/NYC00FA122.md): McDonnell Douglas DC-10-30 · Newark, NJ · Accident · No injuries · Field investigation · Final report · Apr 25, 2000 · N39081 · Substantial damage > Stress rupture of the 2nd-stage low pressure turbine anti-rotation nozzle locks, resulting from inadequate nozzle lock design. - [NTSB ATL00LA046](https://openairdocs.org/ntsb/ATL00LA046.md): Air Tractor AT-401-B · Lawrenceburg, TN · Accident · No injuries · Limited investigation · Final report · Apr 22, 2000 · N6096P · Substantial damage > The loss of engine power due to a stuck exhaust valve that resulted in the collision with a tree while maneuvering for the forced landing. - [NTSB LAX00LA157](https://openairdocs.org/ntsb/LAX00LA157.md): Cessna 207 · Yreka, CA · Accident · Minor injuries · Limited investigation · Final report · Apr 17, 2000 · N1682U · Substantial damage > the total loss of engine power while in cruise flight due to the fatigue failure of the engine's anti-ice bleed air line, which resulted in the pilot's inability to utilize the engine anti-ice system. Contributing factors were the icing conditions and the… - [NTSB FTW00TA116](https://openairdocs.org/ntsb/FTW00TA116.md): Hughes OH-6A · El Paso, TX · Accident · Minor injuries · Final report · Apr 13, 2000 · N6187Y · Substantial damage > The failure of the pilot to maintain rotor rpm during an autorotation, which resulted in a hard landing. A factor was the partial loss of engine power resulting from the separation of the power control line due to fatigue, as a consequence of improper… - [NTSB FTW00LA108](https://openairdocs.org/ntsb/FTW00LA108.md): North American T-28B · Bridgeport, TX · Accident · Minor injuries · Limited investigation · Final report · Mar 27, 2000 · N28NE · Substantial damage > The partial loss of engine power for an undetermined reason. - [NTSB FTW00LA107](https://openairdocs.org/ntsb/FTW00LA107.md): Cessna 172N · Maud, OK · Accident · No injuries · Limited investigation · Final report · Mar 24, 2000 · N75958 · Substantial damage > the loss of engine power while maneuvering as a result of the separation of the exhaust rocker arm retaining stud due to fatigue, which resulted in a precautionary landing. - [NTSB FTW00LA098](https://openairdocs.org/ntsb/FTW00LA098.md): Grumman G-164A · Garwood, TX · Accident · No injuries · Limited investigation · Final report · Mar 13, 2000 · N6637 · Substantial damage > The failure of the left magneto, which resulted in the partial loss of engine power during takeoff. - [NTSB FTW00LA097](https://openairdocs.org/ntsb/FTW00LA097.md): Grumman-Schweizer G-164A · Gillett, AR · Accident · No injuries · Limited investigation · Final report · Mar 13, 2000 · N9785 · Substantial damage > The cracked #8 cylinder resulting in failure of the cylinder. A factor was the plowed/furrowed terrain. - [NTSB ATL00LA030](https://openairdocs.org/ntsb/ATL00LA030.md): Burak Stanley A XF4 · Brooksville, FL · Accident · Minor injuries · Limited investigation · Final report · Feb 29, 2000 · N9VY · Substantial damage > The owner/builder's failure to build the airplane within the design stress limits of the drive shaft assembly, that resulted in the failure of the Flex Coupling Retention Bolts. - [NTSB FTW00LA058](https://openairdocs.org/ntsb/FTW00LA058.md): Cessna A185F · Houston, TX · Accident · No injuries · Limited investigation · Final report · Jan 3, 2000 · N999SW · Substantial damage > the loss of engine power during climb as a result of fatigue cracking of the #4 cylinder head and its subsequent separation from its barrel. - [NTSB LAX00LA062](https://openairdocs.org/ntsb/LAX00LA062.md): Cessna 172A · Dos Palos, CA · Accident · Minor injuries · Limited investigation · Final report · Jan 2, 2000 · N7249T · Substantial damage > A partial loss of engine power due to the failure of maintenance personnel to properly install and safety the throttle arm to the carburetor throttle shaft. - [NTSB LAX00FA061](https://openairdocs.org/ntsb/LAX00FA061.md): Aerospatiale AS-350D · Avalon, CA · Accident · Serious injuries · Field investigation · Final report · Dec 28, 1999 · N3593S · Destroyed > A 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 CHI00LA056](https://openairdocs.org/ntsb/CHI00LA056.md): Cessna 210 · South Lyon, MI · Accident · No injuries · Limited investigation · Final report · Dec 25, 1999 · N7493E · Substantial damage > the 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 MIA00LA049](https://openairdocs.org/ntsb/MIA00LA049.md): Piper PA-32RT-300T · Fort Lauderdale, FL · Accident · Minor injuries · Limited investigation · Final report · Dec 13, 1999 · N21312 · Substantial damage > The 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 DEN00GA022](https://openairdocs.org/ntsb/DEN00GA022.md): Bell 206 L-3 · Rifle, CO · Accident · No injuries · Final report · Nov 24, 1999 · N617DE · Substantial damage > a 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 ATL00LA005](https://openairdocs.org/ntsb/ATL00LA005.md): Cessna 150F · Bay Springs, MS · Accident · Minor injuries · Limited investigation · Final report · Oct 29, 1999 · N6444F · Substantial damage > The pilot's failure to maintain flying speed that resulted in a loss of control and stall. A factor was a stuck exhaust valve. - [NTSB LAX00LA020](https://openairdocs.org/ntsb/LAX00LA020.md): Cessna 150H · El Monte, CA · Accident · Minor injuries · Limited investigation · Final report · Oct 19, 1999 · N22795 · Substantial damage > A cracked No. 2 engine cylinder, which led to a loss of power. A factor was the ditch in the forced landing area. - [NTSB DEN00FA007](https://openairdocs.org/ntsb/DEN00FA007.md): Gardner Varieze · Quemado, NM · Accident · 1 fatal · Field investigation · Final report · Oct 18, 1999 · N13WM · Substantial damage > The 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 NYC00LA008](https://openairdocs.org/ntsb/NYC00LA008.md): Piper PA-28R-200 · Berlin, MD · Accident · Serious injuries · Limited investigation · Final report · Oct 8, 1999 · N56094 · Substantial damage > The failure of the number 3-cylinder exhaust valve stem due to fatigue cracking. - [NTSB FTW99FA262](https://openairdocs.org/ntsb/FTW99FA262.md): Beech A36TC · Franklinton, LA · Accident · 4 fatal · Field investigation · Final report · Sep 19, 1999 · N206WJ · Destroyed > The 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 ATL99LA130](https://openairdocs.org/ntsb/ATL99LA130.md): Cessna 182P · Summerville, GA · Accident · No injuries · Limited investigation · Final report · Sep 14, 1999 · N6863M · Substantial damage > The 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 MIA99FA252](https://openairdocs.org/ntsb/MIA99FA252.md): Boeing B737-300 · West Palm Beach, FL · Accident · No injuries · Field investigation · Final report · Sep 12, 1999 · N17356 · Substantial damage > The 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 FTW99LA247](https://openairdocs.org/ntsb/FTW99LA247.md): Rockwell S-2R · Lookeba, OK · Accident · No injuries · Limited investigation · Final report · Sep 6, 1999 · N4919X · Destroyed > The loss of engine power resulting from a cylinder that failed for an undetermined reason. - [NTSB FTW99LA241](https://openairdocs.org/ntsb/FTW99LA241.md): Cessna 414 · Alpine, TX · Accident · Minor injuries · Limited investigation · Final report · Aug 28, 1999 · N67JM · Destroyed > The 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 DEN99LA145](https://openairdocs.org/ntsb/DEN99LA145.md): Cessna 337 · Edgewood, NM · Accident · No injuries · Limited investigation · Final report · Aug 15, 1999 · N99MH · Substantial damage > Breakage 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 MIA99LA228](https://openairdocs.org/ntsb/MIA99LA228.md): William John Schulz WJS Jaybird · Tangerine, FL · Accident · No injuries · Limited investigation · Final report · Aug 10, 1999 · N735BS · Substantial damage > the 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 CHI99LA277](https://openairdocs.org/ntsb/CHI99LA277.md): Cessna 150M · Sikeston, MO · Accident · No injuries · Limited investigation · Final report · Aug 6, 1999 · N3755V · Substantial damage > the loss of engine power due to the stuck exhaust valve. A factor was the lack of suitable terrain available for the forced landing. - [NTSB DEN99LA131](https://openairdocs.org/ntsb/DEN99LA131.md): Cessna T210F · Fairplay, CO · Accident · Serious injuries · Limited investigation · Final report · Jul 30, 1999 · N6125R · Substantial damage > A partial loss of engine power due to a partial failure of the turbocharger. - [NTSB CHI99LA275](https://openairdocs.org/ntsb/CHI99LA275.md): Fairchild 24 C8C · La Fayette, IL · Accident · No injuries · Limited investigation · Final report · Jul 28, 1999 · N15345 · Substantial damage > the 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 FTW99FA199](https://openairdocs.org/ntsb/FTW99FA199.md): Smith, Ted Aerostar Aerostar 601P · Bethany, OK · Accident · 2 fatal · Field investigation · Final report · Jul 23, 1999 · N345LS · Destroyed > The 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 SEA99FA113](https://openairdocs.org/ntsb/SEA99FA113.md): Alexander VAN'S RV-8 · Lafayette, OR · Accident · 1 fatal · Field investigation · Final report · Jul 10, 1999 · N41VA · Destroyed > Fatigue 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 SEA99LA107](https://openairdocs.org/ntsb/SEA99LA107.md): Grumman-Schweizer G-164A · New Plymouth, ID · Accident · No injuries · Limited investigation · Final report · Jul 7, 1999 · N7869 · Substantial damage > Loss of engine power due to failure of the supercharger impeller. A contributing factor was the ditch. - [NTSB FTW99LA185](https://openairdocs.org/ntsb/FTW99LA185.md): Cessna 150M · Pocahontas, AR · Accident · No injuries · Limited investigation · Final report · Jul 7, 1999 · N7660U · Substantial damage > The 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 LAX99LA245](https://openairdocs.org/ntsb/LAX99LA245.md): Hughes 369D · Oakdale, CA · Accident · No injuries · Limited investigation · Final report · Jul 3, 1999 · N8661F · Substantial damage > The 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 ANC99LA082](https://openairdocs.org/ntsb/ANC99LA082.md): Maule M-4-220C · Mcgrath, AK · Accident · No injuries · Limited investigation · Final report · Jun 24, 1999 · N40677 · Substantial damage > A separation of the number 4 engine cylinder, and a fracture of the number 4 engine connecting rod. - [NTSB FTW99LA168](https://openairdocs.org/ntsb/FTW99LA168.md): Cessna T188C · Panhandle, TX · Accident · No injuries · Limited investigation · Final report · Jun 11, 1999 · N9659J · Substantial damage > The 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 MIA99LA166](https://openairdocs.org/ntsb/MIA99LA166.md): Cessna 182E · Rolling Fork, MS · Accident · No injuries · Limited investigation · Final report · Jun 6, 1999 · N9267X · Substantial damage > Improper 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 CHI99FA163](https://openairdocs.org/ntsb/CHI99FA163.md): Cessna 421B · Jefferson City, MO · Accident · 4 fatal · Field investigation · Final report · May 27, 1999 · N34TM · Destroyed > the pilot failed to maintain control of the airplane. A factor was the partial loss of power due to the exhaust valve fatigue failure. - [NTSB CHI99LA162](https://openairdocs.org/ntsb/CHI99LA162.md): Grumman-Schweizer G-164B · Buxton, ND · Accident · No injuries · Limited investigation · Final report · May 25, 1999 · N6524K · Substantial damage > the 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. Next page: https://openairdocs.org/ntsb.md?occurrence=352&page=7 ## The whole list in SQL Runs in DuckDB 1.2 or later on the release's Parquet files over HTTPS: ```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 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 ``` This list as a web page: https://openairdocs.org/ntsb?occurrence=352&page=6 --- OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.