# NTSB investigations: Mooney M20K: Loss of engine power(total) - 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. ## Latest cases - [NTSB CHI07LA287](https://openairdocs.org/ntsb/CHI07LA287.md): Mooney M20K · Fort Wayne, IN · Accident · No injuries · Limited investigation · Final report · Aug 31, 2007 · N231BQ · Substantial damage > A total loss of engine power due to the fatigue failure of one of the number two cylinder connecting rod bolts. - [NTSB MIA04LA050](https://openairdocs.org/ntsb/MIA04LA050.md): Mooney M20K · Immokalee, FL · Accident · Minor injuries · Limited investigation · Final report · Feb 3, 2004 · N252WF · Substantial damage > A loss of engine power due to the airplane mechanic's improper maintenance/installation and failure to ensure that the B-nut on the inlet side of the fuel manifold was properly tightened, which resulted in a fuel leak, and fuel starvation. - [NTSB IAD03LA073](https://openairdocs.org/ntsb/IAD03LA073.md): Mooney M20K · Chesterfield, VA · Accident · No injuries · Limited investigation · Final report · Aug 29, 2003 · N231PG · Substantial damage > The loss of engine power due to the fatigue fracture of the #2 cylinder head. A contributing factor was the lack of suitable terrain for the forced landing. - [NTSB FTW00LA068](https://openairdocs.org/ntsb/FTW00LA068.md): Mooney M20K · Tyler, TX · Accident · No injuries · Limited investigation · Final report · Jan 19, 2000 · N1157G · Substantial damage > The failure of the crankshaft drive gear as a result of fatigue, which resulted in a forced landing. A factor was the lack of suitable terrain for the forced landing. - [NTSB LAX99LA065](https://openairdocs.org/ntsb/LAX99LA065.md): Mooney M20K · Delano, CA · Accident · Minor injuries · Limited investigation · Final report · Jan 3, 1999 · N1079G · Substantial damage > The fatigue failure and separation of the oil pump drive from the accessory gear section, which induced an oil starvation failure of the engine. The fatigue failure of the oil pump drive gear was caused by improper machining of the gear's fillet radius during… - [NTSB ATL97LA009](https://openairdocs.org/ntsb/ATL97LA009.md): Mooney M20K · Amelia Island, FL · Accident · Serious injuries · Limited investigation · Final report · Oct 25, 1996 · N32DG · Substantial damage > inadequate maintenance/inspection, which resulted in a failure to detect and correct moisture contamination of the left magneto; and/or improper adjustment of the engine fuel pump output, which resulted in excessive fuel pressure. - [NTSB ATL96LA005](https://openairdocs.org/ntsb/ATL96LA005.md): Mooney M20K · Dalton, GA · Accident · No injuries · Limited investigation · Final report · Oct 13, 1995 · N3983H · Substantial damage > Oil starvation for an unknown reason, which resulted in progressive connecting rod failure and subsequent loss of engine power. Factors relating to the accident were: the unfavoable weather and light conditions (low ceiling and fog at dusk), which hampered… - [NTSB SEA95LA190](https://openairdocs.org/ntsb/SEA95LA190.md): Mooney M20K · Roundup, MT · Accident · No injuries · Limited investigation · Final report · Aug 22, 1995 · N1154L · Substantial damage > an engine failure due to foreign object ingestion into the oil pump. A ruptured oil inlet screen contributed to the accident. - [NTSB BFO92FA152](https://openairdocs.org/ntsb/BFO92FA152.md): Mooney M20K · Weston, WV · Accident · 2 fatal · Field investigation · Final report · Sep 21, 1992 · N99693 · Destroyed > Total loss of engine power due to the inadequate torque of the no. 1 cylinder attach bolts and studs, fatique failure of the bolts/studs, and separation of the no. 1 cylinder. Factors related to the accident were: darkness and hilly terrain, which were… - [NTSB NYC90LA053](https://openairdocs.org/ntsb/NYC90LA053.md): Mooney M20 · Brogue, PA · Accident · Minor injuries · Limited investigation · Final report · Jan 19, 1990 · N231FH · Destroyed > Off airport landing due to an engine power loss due to failure of the no. 2 crankshaft bearing. - [NTSB DEN88LA143](https://openairdocs.org/ntsb/DEN88LA143.md): Mooney M-20K · Gunnison, CO · Accident · No injuries · Limited investigation · Final report · Jul 1, 1988 · N231PG · Substantial damage - [NTSB MKC86LA021](https://openairdocs.org/ntsb/MKC86LA021.md): Mooney M20K · Spring Hill, KS · Accident · No injuries · Limited investigation · Final report · Nov 4, 1985 · N231KB · Substantial damage > The pilot of this aircraft was returning from a business flight when the engine failed. During the forced landing, the aircraft rolled through a fence and then impacted a pole with one wing. The pilot stated that one connecting rod came through the side of… - [NTSB LAX85LA391](https://openairdocs.org/ntsb/LAX85LA391.md): Mooney M20K · Rosamond, CA · Accident · No injuries · Limited investigation · Final report · Sep 15, 1985 · N5788U · Substantial damage > While enroute to van nuys arpt at about 9500 ft, the plt reported to edwards afb apch control that he was experiencing a rough running eng. The plt requested and received a radar vector to wm j. fox arpt, lancaster, CA. Shortly thereafter the eng sustained a… - [NTSB MKC84LA198](https://openairdocs.org/ntsb/MKC84LA198.md): Mooney M20K · Blue Springs, MO · Accident · No injuries · Limited investigation · Final report · Jul 3, 1984 · N231FV · Substantial damage > Ten minutes after takeoff acft leveled at 2700 feet AGL at which time the plt leaned the mixture and set the throttle. Shortly after, manifold pressure rose above red line and the engine quit. An engine teardown revealed detonation in the #1 cylinder. The #2… - [NTSB MKC83LA092](https://openairdocs.org/ntsb/MKC83LA092.md): Mooney M20K · Trenton, NE · Accident · No injuries · Limited investigation · Final report · Apr 20, 1983 · N231KV · Substantial damage > The acft was climbing through 11500 to 12000 ft MSL when the engine made a loud noise followed by a lurch. The oil pressure dropped to zero and the engine developed a roughness. The plt said he shut the engine down at this time, the plt advised denver ARTCC… - [NTSB SEA83FYM04](https://openairdocs.org/ntsb/SEA83FYM04.md): Mooney M20K · Dufur, OR · Accident · No injuries · Final report · Jan 24, 1983 · N97429 · Substantial damage > The aircraft collided with an irrigation pipe line and fence during rollout of a forced landing after engine failure. The engine stopped while the aircraft was cruising en route. The pilot remained in radio contact throughout the emergency and landed in a… ## 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 x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.aircraft_model_code IN ('5870220') AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND o."occurrenceNumber" = 1 AND o."occurrenceCode" = 351)) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?model=5870220&occurrence=351 --- 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.