# NTSB investigations, WI: 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 CHI07LA219](https://openairdocs.org/ntsb/CHI07LA219.md): North American T-6G · Fond Du Lac, WI · Accident · No injuries · Limited investigation · Final report · Jul 23, 2007 · N22NA · Substantial damage
  > The loss of engine power due to the failure of the engine's master connecting rod which resulted in the forced landing. The road sign was a factor.
- [NTSB ENG06IA001](https://openairdocs.org/ntsb/ENG06IA001.md): Cessna Citation 650 · Madison, WI · Incident · No injuries · Incident investigation · Final report · Oct 9, 2005 · N175DP · Minor damage
  > The inadequate design of the engine's interstage transition duct that yielded after the LPT stage 3 blades had separated and allowed the uncontained release of turbine debris. A contributing factor was the separation of a turbine blade.
- [NTSB CHI05FA048](https://openairdocs.org/ntsb/CHI05FA048.md): Beech S35 · Herman, WI · Accident · 2 fatal · Field investigation · Final report · Dec 25, 2004 · N5631K · Substantial damage
  > The installation of the improper cylinder base packing seals by maintenance personnel resulting in the loss of lubriation and subsequent failure of the number four connecting rod/bearing. A factor associated with the accident was the trees that the airplane…
- [NTSB CHI05CA032](https://openairdocs.org/ntsb/CHI05CA032.md): Olson Sonex · Oconomowoc, WI · Accident · Serious injuries · Data collection · Final report · Nov 21, 2004 · N478SX · Substantial damage
  > The loss of engine power due to a fatigue fracture of the crankshaft. An additional cause to the accident was the pilot/builder's failure to verify the dimensions of the shrink-fit crankshaft components prior reassembling the engine. A factor to the accident…
- [NTSB CHI04FA203](https://openairdocs.org/ntsb/CHI04FA203.md): Knoepflein Lancair Legacy 2000 · Madison, WI · Accident · 1 fatal · Field investigation · Final report · Aug 1, 2004 · N98SN · Destroyed
  > A loss of engine power due to high engine temperatures which resulted in a failure of the number three piston, the pilot's continued operation of the airplane with known high temperature problems, the pilot's poor inflight planning, and the pilot's failure to…
- [NTSB CHI04LA147](https://openairdocs.org/ntsb/CHI04LA147.md): North American T-28C · Manitowoc, WI · Accident · No injuries · Limited investigation · Final report · Jun 4, 2004 · N404DK · Substantial damage
  > Failure of the number 4 piston articulating rod resulting in a complete loss of engine power during initial climb. The ditch was a contributing factor.
- [NTSB CHI04LA128](https://openairdocs.org/ntsb/CHI04LA128.md): North American P-51C · Hager City, WI · Accident · 1 fatal · Limited investigation · Final report · May 29, 2004 · N61429 · Substantial damage
  > The improper installation of the camshaft drive gear assembly which resulted in the retaining nut backing off allowing the drive gear to move up the shaft. A factor associated with the accident was the low altitude at which the power loss occurred and the…
- [NTSB CHI04LA027](https://openairdocs.org/ntsb/CHI04LA027.md): Bell 206B · Coleman, WI · Accident · Minor injuries · Limited investigation · Final report · Nov 3, 2003 · N3198C · Destroyed
  > The loss of engine power for undetermined reasons and the unsuitable terrain encountered for the forced landing. The garage building was a factor.
- [NTSB CHI03LA274](https://openairdocs.org/ntsb/CHI03LA274.md): Boeing A-75 · La Crosse, WI · Accident · No injuries · Limited investigation · Final report · Aug 20, 2003 · N806RB · Substantial damage
  > The total loss of engine power due to a fatigue fracture of the engine's crankshaft. A factor was the corn crop.
- [NTSB CHI03LA201](https://openairdocs.org/ntsb/CHI03LA201.md): McIlraith Sea Rey · Tomah, WI · Accident · 2 fatal · Limited investigation · Final report · Jul 5, 2003 · N216ST · Destroyed
  > The loss of engine power for an undetermined reason, and the pilot's failure to maintain airspeed resulting in a stall/spin during the forced landing.
- [NTSB CHI96LA286](https://openairdocs.org/ntsb/CHI96LA286.md): Schuler T Bird II · Fond Du Lac, WI · Accident · Serious injuries · Limited investigation · Final report · Aug 12, 1996 · N31774 · Substantial damage
  > loss of engine power because of improperly insulated ignition wiring. Factors relating to the accident were improper maintenance; and high obstructions in the emergency landing area, which the pilot had to avoid, resulting in a collision with terrain.
- [NTSB CHI96LA262](https://openairdocs.org/ntsb/CHI96LA262.md): Piper PA-J3C · Camp Lake, WI · Accident · Minor injuries · Limited investigation · Final report · Jul 31, 1996 · N3445K · Substantial damage
  > seizure of the number 2 piston. Inadequate maintenance was a related factor.
- [NTSB CHI96FA113](https://openairdocs.org/ntsb/CHI96FA113.md): Piper PA-32 · Milwaukee, WI · Accident · 1 fatal · Field investigation · Final report · Jan 17, 1996 · N3326Q · Destroyed
  > Inadequate maintenance and inspection in that the Airworthiness Directive which applied to the fuel pump had not been complied with. A factor was the pilot was unable to reach land.
- [NTSB CHI96LA007](https://openairdocs.org/ntsb/CHI96LA007.md): Roisum Team MINI-MAX · Neenah, WI · Accident · Minor injuries · Limited investigation · Final report · Oct 11, 1995 · N42BX · Substantial damage
  > Fuel starvation due to fuel filter blockage. Factors associated with the accident were the manufacturers design of the fuel filter and the builder/pilots decision to use an automotive type fuel filter.
- [NTSB CHI95LA295](https://openairdocs.org/ntsb/CHI95LA295.md): Kraetzner SKY-BUGGY · Princeton, WI · Accident · No injuries · Limited investigation · Final report · Aug 20, 1995 · N16626 · Destroyed
  > the loss of engine power due to the blocked float valve seat in the carburetor and the pilot's failure to have the proper maintenance inspection performed on the airplane.
- [NTSB CHI95LA290](https://openairdocs.org/ntsb/CHI95LA290.md): Cessna 172P · Port Washington, WI · Accident · Minor injuries · Limited investigation · Final report · Aug 20, 1995 · N55404 · Substantial damage
  > the failure of the #2 cylinder due to fatigue cracking. A factor was the soft terrain.
- [NTSB CHI95FA242](https://openairdocs.org/ntsb/CHI95FA242.md): Revolution Helicopter MINI-500 · Oshkosh, WI · Accident · No injuries · Field investigation · Final report · Jul 27, 1995 · N500ZZ · Substantial damage
  > the inadequate design of the helicopter skid shoes. Factors related to the accident were: false indications of rotor rpm and EGT which led to seizure of the piston.
- [NTSB CHI95LA187](https://openairdocs.org/ntsb/CHI95LA187.md): Bell 47J2A · Elkhorn, WI · Accident · No injuries · Limited investigation · Final report · Jun 19, 1995 · N470RA · Substantial damage
  > loss of power as a result of an intake valve failure due to improper maintenance performed during the major engine overhaul, and pilot misjudgment of the flare during autorotation.
- [NTSB CHI95LA032](https://openairdocs.org/ntsb/CHI95LA032.md): Cessna 172 · Hudson, WI · Accident · Minor injuries · Limited investigation · Final report · Nov 6, 1994 · N734LJ · Substantial damage
  > inadequate maintenance (major overhaul) by maintenance personnel which resulted in the total loss of engine power. Soft terrain was a related factor.
- [NTSB CHI94LA091](https://openairdocs.org/ntsb/CHI94LA091.md): Cessna 150M · La Crosse, WI · Accident · No injuries · Limited investigation · Final report · Feb 18, 1994 · N704CE · Substantial damage
  > The failure of the exhaust valve in the number one cylinder. The lack of suitable terrain for the forced landing was a factor in the accident.
- [NTSB CHI93LA371](https://openairdocs.org/ntsb/CHI93LA371.md): Piper PA-60-601 · Lone Rock, WI · Accident · No injuries · Limited investigation · Final report · Sep 21, 1993 · N9825Q · Substantial damage
  > Inadequate maintenance and excessive airspeed during the landing approach.
- [NTSB CHI93DEP05](https://openairdocs.org/ntsb/CHI93DEP05.md): Bell 47-G5 · Fulton, WI · Accident · Minor injuries · Final report · Aug 25, 1993 · N1464W · Substantial damage
  > the failure (fracture) of the number one cylinder intake valve retainer (keeper).
- [NTSB CHI93FA158](https://openairdocs.org/ntsb/CHI93FA158.md): Beech E-18S · Lone Rock, WI · Accident · 1 fatal · Field investigation · Final report · May 4, 1993 · N80CB · Destroyed
  > was a pre-mature extension of the landing gear by the pilot which resulted in the inability of the pilot to maintain the minimum descent altitude. Factors related to the accident were the loose cylinder and loss of oil.
- [NTSB CHI92FA215](https://openairdocs.org/ntsb/CHI92FA215.md): Cessna P210N · Mineral Point, WI · Accident · 2 fatal · Field investigation · Final report · Jul 29, 1992 · N6503W · Substantial damage
  > The pilot's inadvertent stall and descent into terrain during a forced landing. Related factors are the manufacturer's undertorqued crankcase halves and inadequate surveillance, the pilot's delay in setting up the proper descent rate, and the altered aircraft…
- [NTSB CHI92FA188](https://openairdocs.org/ntsb/CHI92FA188.md): Beech 24R · Oak Creek, WI · Accident · Minor injuries · Field investigation · Final report · Jun 25, 1992 · N2195W · Destroyed
  > A result of inadequate aircraft maintenance inspection on behalf of the company maintenance personnel.
- [NTSB CHI92LA015](https://openairdocs.org/ntsb/CHI92LA015.md): North American Navion D · Lake Geneva, WI · Accident · No injuries · Limited investigation · Final report · Oct 20, 1991 · N10JF · Substantial damage
  > Fatigue failure of the crankshaft. A factor in the accident was inadequate quality control by other maintenance personnel.
- [NTSB CHI92LA003](https://openairdocs.org/ntsb/CHI92LA003.md): Cessna 150M · Marion, WI · Accident · No injuries · Limited investigation · Final report · Oct 8, 1991 · N704CW · Substantial damage
  > The failure of the exhaust and intake valves. Factors contributing to the accident were downhill terrain and a collapsed nosegear.
- [NTSB CHI90DEP01](https://openairdocs.org/ntsb/CHI90DEP01.md): Wychen Challenger II · Warrens, WI · Accident · Serious injuries · Final report · Oct 22, 1989 · N91269 · Substantial damage
  > A broken cranskshaft which resulted in the loss of power. A factor related to the accident was: the lack of suitable terrain for a forced landing.
- [NTSB CHI89LA141](https://openairdocs.org/ntsb/CHI89LA141.md): Cessna R172K · Wisconsin Dells, WI · Accident · No injuries · Limited investigation · Final report · Jul 22, 1989 · N736DA · Substantial damage
  > Failure of the pilot to insure the oil filler cap was properly secured when he serviced the aircraft before takeoff, and subsequent loss of oil and oil exhaustion. The tree was considered to be a contributing factor.
- [NTSB CHI89LA087](https://openairdocs.org/ntsb/CHI89LA087.md): Piper PA-24-250 · Waunakee, WI · Accident · No injuries · Limited investigation · Final report · May 14, 1989 · N7465P · Substantial damage
  > Slippage of a bearing, which resulted in blockage of the lubrication system, and subsequent failure of a connecting rod.
- [NTSB CHI88DER09](https://openairdocs.org/ntsb/CHI88DER09.md): Smith Miniplane · Superior, WI · Accident · Serious injuries · Final report · Aug 21, 1988 · N39F · Substantial damage
  > While in normal cruise the aircraft experienced a total loss of engine power. The pilot executed an emergency descent to a forced landing. The aircraft encountered unsuitable terrain which resulted in a hard landing and substantial damage to the aircraft. The…
- [NTSB MKC87FA161](https://openairdocs.org/ntsb/MKC87FA161.md): Piper PA-22-150 · Solon Springs, WI · Accident · 2 fatal · Field investigation · Final report · Aug 15, 1987 · N5831D · Destroyed
  > The surviving pax rprtd that drg initial climb after takeoff, the eng suddenly stopped & did not respond to atmts of a restart. The plt turned back toward the arpt, but was unable to reach the rwy. The acft impacted large trees in a wooded area, then crashed…
- [NTSB CHI87LA137](https://openairdocs.org/ntsb/CHI87LA137.md): Aircoupe A-2-DEX · Iola, WI · Accident · No injuries · Limited investigation · Final report · May 31, 1987 · N6509Q · Destroyed
  > The aircraft experienced a loss of engine power shortly after takeoff and was forced to make an emergency landing next to the runway. On landing roll the nose wheel of the aircraft stuck in the ground, flipping the aircraft over onto its back. According to a…
- [NTSB CHI87DEP03](https://openairdocs.org/ntsb/CHI87DEP03.md): Erickson Sonerai 2L · Algoma, WI · Accident · No injuries · Final report · Apr 7, 1987 · N131DE · Destroyed
  > While in normal cruise flight the crankshaft failed at the propeller flange and the propeller departed the aircraft. The pilot executed a forced landing to a farm field. He was unable to flare successfully and lost control during landing.
- [NTSB CHI87DEP04](https://openairdocs.org/ntsb/CHI87DEP04.md): Mooney M20F · Greenwood, WI · Accident · No injuries · Final report · Dec 30, 1986 · N9627M · Substantial damage
  > The aircraft lost engine power during a descent due to a loose throttle linkage and the pilot was forced to make an emergency landing in a field. On landing roll the aircraft struck a reflector post with the right wing.
- [NTSB CHI86LA236](https://openairdocs.org/ntsb/CHI86LA236.md): Hughes 269B · Baldwin, WI · Accident · No injuries · Limited investigation · Final report · Sep 26, 1986 · N9427F · Substantial damage
  > After picking up his passenger at williams pipeline, minneapolis, Minnesota, the plt flew eastward along interstate 90 enroute to a pipeline near wausau, Wisconsin. While flying at approximatelly 400 feet, the plt and passenger stated that the engine started…
- [NTSB CHI86FEP07](https://openairdocs.org/ntsb/CHI86FEP07.md): Wheeler Gold Wing · Sturdevant, WI · Accident · No injuries · Final report · Jul 30, 1986 · N54314 · Substantial damage
  > This aircraft force landed shortly after takeoff and was substantially damaged when the wing struck the shoulder of a ditch during the landing. An examination of the engine after the accident revealed that the fuel pump was improperly installed (not in…
- [NTSB CHI86LA084](https://openairdocs.org/ntsb/CHI86LA084.md): Cessna 207 · Milwaukee, WI · Accident · No injuries · Limited investigation · Final report · Feb 10, 1986 · N18SA · Substantial damage
  > After preheating the eng the plt took off and during climb the cabin filled with smoke and the eng stopped. A forced landing was made on a city street during which the left wing contacted a sign pole. Post accident teardown of the eng disclosed that an oil…
- [NTSB CHI85LA235](https://openairdocs.org/ntsb/CHI85LA235.md): Beech V35B · Boscobel, WI · Accident · No injuries · Limited investigation · Final report · Jun 17, 1985 · N18382 · Substantial damage
  > The engine failed on final approach. The aircraft did not clear a wooded area resulting in an uncontrolled descent. The camshaft had failed at the number 1 journal oil groove.
- [NTSB CHI84IA373](https://openairdocs.org/ntsb/CHI84IA373.md): Boeing 737-291 · Madison, WI · Incident · No injuries · Incident investigation · Final report · Aug 29, 1984 · N7351F · No damage
  > Shortly after lift-off & while climbing thru about 150 ft AGL, there was a loud noise from the left eng when it failed. The aircrew secured the left eng, returned to the arpt & made a single eng landing without further incident. An investigation revealed that…
- [NTSB CHI84LA349](https://openairdocs.org/ntsb/CHI84LA349.md): Bellanca 17-31ATC · Antigo, WI · Accident · No injuries · Limited investigation · Final report · Aug 16, 1984 · N4001B · Destroyed
  > The acft was forced to land after the engine failed. The plt heard an explosion and saw part of the cowling come off before the engine quit. His passenger said that oil covered the windshield. Post accident inspection showed a failed cylinder. The cylinder…
- [NTSB CHI84LU006](https://openairdocs.org/ntsb/CHI84LU006.md): Pterodactyl Fledgling · Hartford, WI · Accident · Serious injuries · Final report · Jul 7, 1984 · UNREG · Minor damage
  > The ultralight was in the takeoff climb at about 75 ft AGL when the engine failed. During the emergency forced landing, the acft landed hard on upsloping terrain & the nose gear failed in overload. Investigation revealed that an ignition wire was worn and had…
- [NTSB CHI83LA349](https://openairdocs.org/ntsb/CHI83LA349.md): Beech A24R · Verona, WI · Accident · No injuries · Limited investigation · Final report · Aug 2, 1983 · N8016R · Substantial damage
  > The acft lost power during cruise and was damaged in an off arpt forced landing. During the landing roll in a field, acft contacted a fence and collapsed the nose gear. Examination of the bendix fuel injector SN30479, model RSA-5AD1 revealed that the fuel…
- [NTSB CHI83LA150](https://openairdocs.org/ntsb/CHI83LA150.md): Consolidated-Vultee 28-5ACF · Neilsville, WI · Accident · No injuries · Limited investigation · Final report · Mar 22, 1983 · N4760C · Substantial damage
  > The aircraft was crash landed in an open field after it had a power loss on #1 engine during cruise flight. The aircraft was on a geodetic survey flight which called for flight at 500 feet AGL. The pilot elected to land because the aircraft could not maintain…
- [NTSB CHI83FA086](https://openairdocs.org/ntsb/CHI83FA086.md): Piper PA-32-300 · Monroe, WI · Accident · Minor injuries · Field investigation · Final report · Jan 19, 1983 · N5818F · Destroyed
  > While cruising at 4,000 ft MSL the eng quit. During a forced landing on rolling farm terrain both main landing gear separated. The acft then slid through a barbed wire fence & caught fire. Metallurgical examination revealed a fatigue failure of the idle set…
- [NTSB CHI82DA287](https://openairdocs.org/ntsb/CHI82DA287.md): Beech A23A · Grantsburg, WI · Accident · No injuries · Final report · Jul 31, 1982 · N3683Q · Substantial damage
  > The pilot could not start the aircraft with the mixture in the normal (rich) position. The mixture was set to lean and the engine started. During takeoff, the engine lost power and the pilot landed off the end of the runway. This was the first flight since an…
- [NTSB CHI82DA278](https://openairdocs.org/ntsb/CHI82DA278.md): Piper PA-23 · Ladysmith, WI · Accident · No injuries · Final report · Jul 28, 1982 · N3092P · Substantial damage
  > A ferry permit was issued to fly the aircraft to the rusk county airport for an annual inspection. The previous annual inspection had been on 8/20/80. During the arrival at the destination, the approach was high, so the pilot elected to go around. At about…
- [NTSB CHI82DA230](https://openairdocs.org/ntsb/CHI82DA230.md): Piper PA-28-161 · Ladysmith, WI · Accident · No injuries · Final report · Jul 1, 1982 · N40037 · Substantial damage
  > The student pilot collided with a fence and rough terrain during a forced landing on a cross-country flight. The student heard a loud knocking from the engine after about 35 minutes of flight. He reduced power which helped but the engine was still noisy. The…
- [NTSB CHI82FA157](https://openairdocs.org/ntsb/CHI82FA157.md): Piper PA-32-300 · Milwaukee, WI · Accident · Minor injuries · Field investigation · Final report · May 9, 1982 · N6837J · Substantial damage
  > Engine failure forced pilot to land in an open plowed field. Aircraft collided with wires but a successful landing was made. Oil pump gear tooth had failed.

## 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" = 'WI' 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" = 351)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?occurrence=351&state=WI

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