# NTSB investigations: Mooney M20J: Loss of engine power 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 NYC06LA101](https://openairdocs.org/ntsb/NYC06LA101.md): Mooney M20J · Norwood, MA · Accident · Minor injuries · Limited investigation · Final report · Apr 24, 2006 · N201BD · Substantial damage > Improper maintenance, which resulted in a fatigue fracture of the dual magneto mounting flange, and a subsequent loss of engine power. - [NTSB MIA06LA058](https://openairdocs.org/ntsb/MIA06LA058.md): Mooney M20J · Fort Pierce, FL · Accident · Minor injuries · Limited investigation · Final report · Mar 1, 2006 · N511G · Substantial damage > Improper magneto installation by maintenance personnel, which resulted in the magneto detaching from the engine and subsequent loss of engine power. - [NTSB SEA02LA187](https://openairdocs.org/ntsb/SEA02LA187.md): Mooney M20J · Oakley, ID · Accident · No injuries · Limited investigation · Final report · Sep 30, 2002 · N4232H · Substantial damage > Failure (fracture) of the two number four piston compression rings, leading to the erosion of a section of the piston sidewall, resulting in the exhaustion of the engine's oil supply during cruise flight, followed by a forced landing on a country road.… - [NTSB FTW99LA027](https://openairdocs.org/ntsb/FTW99LA027.md): Mooney M20J · San Angelo, TX · Accident · Minor injuries · Limited investigation · Final report · Nov 17, 1998 · N201QK · Substantial damage > The total loss of engine power due to the magneto failure resulting from oil contamination when the bearing plate retainer screw fractured due to improper manufacturing. Factors were the lack of suitable terrain for the forced landing, and the dark night… - [NTSB NYC95LA092](https://openairdocs.org/ntsb/NYC95LA092.md): Mooney M20J · Cleveland, OH · Accident · Minor injuries · Limited investigation · Final report · Apr 24, 1995 · N9969X · Substantial damage > the loss of engine power for undetermined reasons, and the pilot's improper decision to fly an extended landing pattern after experiencing a partial loss of engine power. - [NTSB LAX94LA284](https://openairdocs.org/ntsb/LAX94LA284.md): Mooney M-20J · Tucson, AZ · Accident · Serious injuries · Limited investigation · Final report · Jul 13, 1994 · N5668M · Substantial damage > a loss of engine power for undetermined reasons. - [NTSB BFO93FA153](https://openairdocs.org/ntsb/BFO93FA153.md): Mooney M20J · Mitchellville, MD · Accident · Serious injuries · Field investigation · Final report · Sep 3, 1993 · N7666P · Substantial damage > Corrosion in the fuel control unit, which resulted in fuel starvation and loss of engine power. Related factors were: inadequate maintenance, and the lack of suitable terrain for an emergency landing. - [NTSB MIA93FA156](https://openairdocs.org/ntsb/MIA93FA156.md): Mooney M20-J · Jackson, MS · Accident · 1 fatal · Field investigation · Final report · Jul 15, 1993 · N57287 · Substantial damage > A power loss for undetermined reasons during takeoff, the failure of the pilot-in-command to abort the takeoff, and his improper decision to turn back to the airport when there was suitable terrain ahead for the forced landing. - [NTSB FTW93LA012](https://openairdocs.org/ntsb/FTW93LA012.md): Mooney M20J · Mexia, TX · Accident · Minor injuries · Limited investigation · Final report · Oct 14, 1992 · N201BL · Substantial damage > The pilot fueled the aircraft with jet fuel instead of avaition gasoline. Factors were the unsuitable terrain encountered during the forced landing and the dark night light conditions. - [NTSB BFO88LA045](https://openairdocs.org/ntsb/BFO88LA045.md): Mooney M-20J · Yorktown, VA · Accident · No injuries · Limited investigation · Final report · May 11, 1988 · N567MM · Destroyed > The plt was returning to the arpt after a 20 minute local flight. About 5 miles from the arpt he noticed the oil pres/temp gages indicated zero even after he checked the circuit breakers-shortly afterward the engine began to lose power and vibrate severely.… - [NTSB MIA88LA060](https://openairdocs.org/ntsb/MIA88LA060.md): Mooney M20J · St Theresa, FL · Accident · No injuries · Limited investigation · Final report · Dec 11, 1987 · N4324H · Destroyed > While in cruise flt at 3000 ft south-southeast of st. Theresa, FL over the gulf of Mexico, the plt reported a total loss of power. Attempts to restart were unsuccessful. The acft was then ditched aprx 11 nautical miles & 146 degrees from st. Theresa, FL, near… - [NTSB NYC86LA071](https://openairdocs.org/ntsb/NYC86LA071.md): Mooney M20J · Johnstown, PA · Accident · Minor injuries · Limited investigation · Final report · Feb 3, 1986 · N1144P · Destroyed > The flight was enroute from louisville Kentucky to Connecticut. While cruising at 9000 ft an engine power loss was experienced. An emergency was declared. The ATC set up an ILS approach to runway 33 at Johnstown, PA. However the pilot could not maintain… - [NTSB ATL86FKG04](https://openairdocs.org/ntsb/ATL86FKG04.md): Mooney M20J · Americus, GA · Accident · Serious injuries · Final report · Oct 6, 1985 · N4287H · Destroyed > The acft contacted a tree and came to rest inverted during a forced landing following a loss of pwr. The loss of pwr occurred aprx 5 miles west of the destination arpt. Post accident inspection of the airframe and powerplant failed to disclose any mechanical… - [NTSB NYC85FA103](https://openairdocs.org/ntsb/NYC85FA103.md): Mooney MO-20J · Lock Haven, PA · Accident · 5 fatal · Field investigation · Final report · Apr 7, 1985 · N5764D · Destroyed > Preflt wx briefings were issued to the plt that forecasted moderate icing & turbulence from 3000 to 14000 ft across the planned route. An IFR flt plan was filed and during the flt the plt reported engine problems at 1100 ft MSL. During vectors to closest arpt… - [NTSB ATL82FLG08](https://openairdocs.org/ntsb/ATL82FLG08.md): Mooney M-20J · Hilton Head, SC · Accident · No injuries · Final report · Jan 6, 1982 · N201NH · Substantial damage > During takeoff at about 200 to 300 feet the engine malfunctioned and the pilot elected to make a gear up landing. Investigation revealed that the left wing fuel tank contained over a quart of water. Water and a red substance similar in appearance to tank… ## 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 ('5870219') 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" = 350)) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?model=5870219&occurrence=350 --- 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.