# NTSB investigations, MN: 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. ## Latest cases - [NTSB CHI04CA237](https://openairdocs.org/ntsb/CHI04CA237.md): Enstrom F-28A · Leroy, MN · Accident · Serious injuries · Data collection · Final report · Aug 23, 2004 · N9573 · Substantial damage > The partial loss of engine power due to the missing 1/8-27 NPT Allen plug as a result of other maintenance personnel undertorquing the plug. Additionally, the pilot improperly excecuted a run on landing. A factor was the loss of tail rotor effectiveness. - [NTSB CHI01LA229](https://openairdocs.org/ntsb/CHI01LA229.md): Grumman-Schweizer G-164A · Dodge Center, MN · Accident · No injuries · Limited investigation · Final report · Jul 22, 2001 · N5398 · Destroyed > The pilot not maintaining directional control on the ground during the takeoff roll. Factors relating to this accident were the total failure of the propeller governor and the corn crop. - [NTSB CHI00LA274](https://openairdocs.org/ntsb/CHI00LA274.md): Widner Pietenpol Aircamper · Andover, MN · Accident · Minor injuries · Limited investigation · Final report · Aug 28, 2000 · N89JW · Destroyed > The trees and the unsuitable terrain for landing encountered during the forced landing. Factors were the side slip to avoid the trees initiated by the pilot, the fractured piston, and the cracked cylinder. - [NTSB CHI00LA220](https://openairdocs.org/ntsb/CHI00LA220.md): Floroski Anderson Kingfisher · Deerwood, MN · Accident · Serious injuries · Limited investigation · Final report · Jul 22, 2000 · N41SF · Substantial damage > the open carburetor heat air box resulting in a loss of engine power, the diminished climb rate and the altitude/clearance not possible by the pilot. Factors were the trees and the bent carburetor heat push-pull rod. - [NTSB CHI98TA354](https://openairdocs.org/ntsb/CHI98TA354.md): Bell 206B-3 · Hinkley, MN · Accident · No injuries · Final report · Sep 12, 1998 · N52BH · Substantial damage > Loss of engine power due to failure of the engine governor. - [NTSB CHI98LA355](https://openairdocs.org/ntsb/CHI98LA355.md): Air Tractor AT-401 · N. Ottawa Twp., MN · Accident · No injuries · Limited investigation · Final report · Aug 28, 1998 · N4543F · Destroyed > A loss of engine power due to a worn piston ring. A related factor was the owner exceeded the manufacturer's recommended engine overhaul. - [NTSB CHI96FA348](https://openairdocs.org/ntsb/CHI96FA348.md): Cessna 172F · Saint Clair, MN · Accident · 1 fatal · Field investigation · Final report · Sep 22, 1996 · N5373R · Destroyed > a loss of power due to the engine's #2 cylinder exhaust valve stuck open, and the pilot's failure to maintain airspeed. - [NTSB CHI96LA132](https://openairdocs.org/ntsb/CHI96LA132.md): Siai-Marchetti S.205/22R · Anoka, MN · Accident · No injuries · Limited investigation · Final report · Apr 13, 1996 · N954W · Substantial damage > A loose exhaust system that had become disconnected and blocked, which resulted in partial loss of engine power. - [NTSB CHI95LA058](https://openairdocs.org/ntsb/CHI95LA058.md): Mooney M20K · Minneapolis, MN · Accident · No injuries · Limited investigation · Final report · Dec 28, 1994 · N3983H · Substantial damage > the pilot's misjudging of distance and airspeed during the approach to landing which resulted in an overrun. Factors associated with the accident were the separation of the exhaust pipe and the pilot's not understanding communications from the air traffic… - [NTSB CHI94LA243](https://openairdocs.org/ntsb/CHI94LA243.md): Inman Acro Sport 1 · Albert Lea, MN · Accident · Serious injuries · Limited investigation · Final report · Jul 23, 1994 · N869M · Substantial damage > the pilot's failure to make a precautionary landing on the remaining runway. Factors in the accident were the blocked fuel injector and inadvertent stall. - [NTSB CHI91DER13](https://openairdocs.org/ntsb/CHI91DER13.md): Bell 47G-3B-1 · Maple Grove, MN · Accident · No injuries · Final report · Aug 9, 1991 · N73998 · Substantial damage > The pilot's failure to maintain directional control of the helicopter during the forced landing. Related factors are the loss of engine power, loss of rotor RPM, the eroded compressor blades, the pilot's operation with known deficiencies in equipment and… - [NTSB CHI91LA161](https://openairdocs.org/ntsb/CHI91LA161.md): Piper PA-22-160 · Mankato, MN · Accident · No injuries · Limited investigation · Final report · May 21, 1991 · N2906Z · Substantial damage > Partial loss of engine power due to an unlocked engine primer. Factors related to the accident were that the pre takeoff check list was not followed by the pilot and the lack of suitable terrain for the forced landing. - [NTSB MKC89IA048](https://openairdocs.org/ntsb/MKC89IA048.md): Gulfstream Commander 690A · St. Paul, MN · Incident · No injuries · Incident investigation · Final report · Dec 29, 1988 · N690MF · No damage > The PIC had prefltd his commander turboprop and prepared for takeoff fm the St. Paul arpt. During the takeoff roll just as the acft was rotated to takeoff attitude, the rt eng failed. The PIC eased the acft back to the rwy, reduced pwr and came to a stop on… - [NTSB CHI87DER04](https://openairdocs.org/ntsb/CHI87DER04.md): Piper PA-32-260 · Pine Center, MN · Accident · Minor injuries · Final report · Apr 10, 1987 · N56721 · Substantial damage > After noticing a loss in oil pressure, the pilot initiated an emergency landing in a swamp. The aircraft impacted trees and received substantial damage. The pilot reported minor injuries. Subsequent investigation revealed that the oil sump contained several… - [NTSB CHI86LA156](https://openairdocs.org/ntsb/CHI86LA156.md): Cessna 172P · Grand Rapids, MN · Accident · Minor injuries · Limited investigation · Final report · Jun 17, 1986 · N52565 · Substantial damage > The CFI and sp were returning from a transition. Enroute the #3 exhaust valve push rod failed. When the CFI smelled 'something burning' she shut down the engine. During the descent struck power lines. Acft ld in swampy terrain and nosed over inverted. - [NTSB CHI86LA066](https://openairdocs.org/ntsb/CHI86LA066.md): Cessna 150G · Pelican Rapids, MN · Accident · Minor injuries · Limited investigation · Final report · Jan 14, 1986 · N2495J · Substantial damage > The exhaust valve rocker arm #1 cylinder failed in flight. The student pilot descended and landed in a wooded area. After over flying a frozen lake occupied by fishermen. The rocker arm exhibited evidence of fatigue. - [NTSB CHI85LA275](https://openairdocs.org/ntsb/CHI85LA275.md): Bell 47G-3B-1 · Donaldson, MN · Accident · No injuries · Limited investigation · Final report · Jul 6, 1985 · N7856S · Substantial damage > When 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 CHI85LA172](https://openairdocs.org/ntsb/CHI85LA172.md): Ercoupe 415-CD · St. Paul, MN · Accident · No injuries · Limited investigation · Final report · Apr 21, 1985 · N94740 · Substantial damage > Shortly 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 CHI84LA241](https://openairdocs.org/ntsb/CHI84LA241.md): Cessna 172G · Goodridge, MN · Accident · Minor injuries · Limited investigation · Final report · Jun 17, 1984 · N5883R · Substantial damage > The acft was forced to land in a farm pasture after the engine lost power. Post accident examination of the acft revealed that the carburetor heat control was off. The right magneto was found to be very weak. A spark could only be produced at high RPM. The… - [NTSB CHI83FER01](https://openairdocs.org/ntsb/CHI83FER01.md): Goodyear FG1D · Crystal, MN · Accident · No injuries · Final report · Aug 3, 1983 · N62290 · Substantial damage > The plt reported that during the takeoff roll, there was a slight loss of manifold pressure. This was followed by a loud 'misfire', a futher loss of manifold pressure & a drop in the eng RPM. With an estimated 2000 ft of rwy remaining, he elect to abort &… - [NTSB CHI83LA255](https://openairdocs.org/ntsb/CHI83LA255.md): Grumman G-164A · Crookston, MN · Accident · No injuries · Limited investigation · Final report · Jun 13, 1983 · N8595H · Destroyed > The acft collided with the ground after takeoff. The pilot said the acft lost power and felt sloppy at about 350 ft AGL.he added power but maximum obtainable was 2000 RPM as opposed to 2300. The pilot said he tried to drop the load but the load remained with… - [NTSB CHI83LA140](https://openairdocs.org/ntsb/CHI83LA140.md): Beech 35-C33 · Princton, MN · Accident · No injuries · Limited investigation · Final report · Mar 16, 1983 · N10HR · Substantial damage > The pilot said that at 6000 feet MSL the engine began to miss and got worse. He tried to correct the situation but could not. He requested and was given vectors to the princeton arpt. The arpt was closed at the time due to snow covered ruts on the rnwy and… - [NTSB CHI82DA276](https://openairdocs.org/ntsb/CHI82DA276.md): Piper PA25-235C · Ada, MN · Accident · No injuries · Final report · Jul 26, 1982 · N7208Z · Substantial damage > The pilot sprayed one field and proceeded to the next field about 2 miles away. He stated that he executed a tight 270 deg turn to the right at about 100 ft. he also stated that after about 90 deg through the turn, the aircraft lost power, stalled and… - [NTSB CHI82DA233](https://openairdocs.org/ntsb/CHI82DA233.md): Cessna 150M · Santisgo, MN · Accident · No injuries · Final report · Jul 3, 1982 · N63183 · Substantial damage > During aerial photo mission engine began to run rough. Pilot headed home but was forced to land enroute. Aircraft swerved and nosed over. Exam of engine showed exhaust valve stuck open. ## 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."eventStateOrRegion" = 'MN' AND c."eventCountry" = 'USA' 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 ``` This list as a web page: https://openairdocs.org/ntsb?occurrence=352&state=MN --- 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.