# NTSB investigations, WI: 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 CHI02LA245](https://openairdocs.org/ntsb/CHI02LA245.md): Piper PA22-150 · Sauk City, WI · Accident · Minor injuries · Limited investigation · Final report · Aug 8, 2002 · N8910D · Substantial damage > A loss of engine power due to a seized exhaust valve. A related factor was the mowed hay field. - [NTSB CHI01LA013](https://openairdocs.org/ntsb/CHI01LA013.md): Republic RC-3 · Baraboo, WI · Accident · No injuries · Limited investigation · Final report · Oct 12, 2000 · N6175K · Substantial damage > the failure of the number five intake valve spring during initial climbout and that there was no suitable terrain during the forced landing. A factor was the corn crop. - [NTSB CHI97LA011](https://openairdocs.org/ntsb/CHI97LA011.md): Aero Commander 685 · Eden, WI · Accident · Serious injuries · Limited investigation · Final report · Oct 19, 1996 · N58RG · Destroyed > a partial loss of engine power due to improper adjustment of the fuel pump by an unqualified person (pilot-in-command) and the pilot's inadequate preflight planning which resulted in his selection of unsuitable terrain for the attempted takeoff. The pilot's… - [NTSB CHI96LA253](https://openairdocs.org/ntsb/CHI96LA253.md): Yasecko LONG-EZE · Waukesha, WI · Accident · No injuries · Limited investigation · Final report · Jul 24, 1996 · N303Y · Substantial damage > Failure of the throttle cable. - [NTSB CHI96LA236](https://openairdocs.org/ntsb/CHI96LA236.md): Wsk Pzl Mielec M-18 Dromader · Waupaca, WI · Accident · No injuries · Limited investigation · Final report · Jul 10, 1996 · N2047S · Substantial damage > inadequate maintenance of the throttle cable by maintenance personnel. - [NTSB CHI96LA006](https://openairdocs.org/ntsb/CHI96LA006.md): Cessna 172F · Danbury, WI · Accident · No injuries · Limited investigation · Final report · Oct 11, 1995 · N8740U · Substantial damage > the partial failure of the left magneto, the road sign, and the road embankment. A factor relating to this accident is the brush which obscured the road sign. - [NTSB CHI94LA156](https://openairdocs.org/ntsb/CHI94LA156.md): Cessna 150F · Chippewa Falls, WI · Accident · No injuries · Limited investigation · Final report · May 12, 1994 · N6872F · Substantial damage > the loss of engine power due to a binding carburetor heat door. - [NTSB CHI93LA205](https://openairdocs.org/ntsb/CHI93LA205.md): Cessna 172P · Hartford, WI · Accident · No injuries · Limited investigation · Final report · Jun 14, 1993 · N55404 · Substantial damage > The failure of the number four cylinder and unsuitable terrain. - [NTSB CHI91DEP11](https://openairdocs.org/ntsb/CHI91DEP11.md): English Pietenpol Aircamper · Brodhead, WI · Accident · Serious injuries · Final report · Jul 27, 1991 · N14961 · Substantial damage > Erosion of an exhaust valve. - [NTSB CHI90DEP07](https://openairdocs.org/ntsb/CHI90DEP07.md): Bell 47-G2 · Hatley, WI · Accident · No injuries · Final report · Jul 10, 1990 · N6768D · Substantial damage > The partial loss of power due to sticking intake valves. - [NTSB CHI90DEP05](https://openairdocs.org/ntsb/CHI90DEP05.md): Cirrus Klappmeier Cirrus VF-30 · Baraboo, WI · Accident · No injuries · Final report · Jun 14, 1990 · N888EK · Destroyed > Manufacturer's inadequate equipment design to prevent a fuel leak which resulted in an in-flight fire. A factor related to the accident was the lack of an unsuitable forced landing area. - [NTSB CHI89DEP02](https://openairdocs.org/ntsb/CHI89DEP02.md): Cessna 172M · West Bend, WI · Accident · No injuries · Final report · Mar 27, 1989 · N9578V · Substantial damage > Partial failure of the throttle cable. Unsuitable (soft) terrain and transmission wires in the landing area were considered to be factors. - [NTSB CHI88LA043](https://openairdocs.org/ntsb/CHI88LA043.md): Piper PA-22 · Stanley, WI · Accident · No injuries · Limited investigation · Final report · Jan 3, 1988 · N863A · Substantial damage - [NTSB CHI88IA003](https://openairdocs.org/ntsb/CHI88IA003.md): Mcdonnell Douglas DC-10-40 · Milwaukee, WI · Incident · No injuries · Incident investigation · Final report · Oct 5, 1987 · N157US · Minor damage > Aircraft landed without further incident after exhaust centerbody fell away from the #1 engine during initial climb. The centerbody landed on private property with no property damage. A service bulletin issued by the manufacturer to inspect the centerbody and… - [NTSB CHI87LA211](https://openairdocs.org/ntsb/CHI87LA211.md): Cessna 172K · Jefferson, WI · Accident · No injuries · Limited investigation · Final report · Sep 12, 1987 · N84352 · Substantial damage > The aircraft was en route on a personal cross country flight when it experienced an engine failure and was forced to make an emergency landing in an alfalfa field. The aircraft landed long and collided with a telephone pole and fence at the end of the field.… - [NTSB CHI86FA174](https://openairdocs.org/ntsb/CHI86FA174.md): Cessna 172K · Random Lake, WI · Accident · 2 fatal · Field investigation · Final report · Jul 20, 1986 · N79069 · Destroyed > The acft lost pwr on final apprch and crashed into a swamp. Post accident investigation revealed that the eng camshaft was worn reducing the pwr output of the powerplant. - [NTSB DCA85AA036](https://openairdocs.org/ntsb/DCA85AA036.md): Douglas DC-9-14 · Milwaukee, WI · Accident · 31 fatal · Final report · Sep 6, 1985 · N100ME · Destroyed > The Safety Board's full report on this investigation is provided as Aviation Accident Report number AAR-87/01. To obtain a copy of this report, or to view the executive summary online, please see the Web site at http://www.ntsb.gov/publictn/publictn.htm Drg… - [NTSB CHI85LA297](https://openairdocs.org/ntsb/CHI85LA297.md): Piper PA-22 · Iola, WI · Accident · No injuries · Limited investigation · Final report · Jul 13, 1985 · N1487A · Substantial damage > Upon takeoff at approximately 100 ft AGL the pilot experienced a partial power loss which necessitated a forced landing in a soft, wet potato field. The pilot had time to switch fuel tanks and magnetos prior to touchdown, but the power loss remained constant.… - [NTSB CHI84LA332](https://openairdocs.org/ntsb/CHI84LA332.md): Arnold Forest Quickie 2 · Grantsburg, WI · Accident · No injuries · Limited investigation · Final report · Aug 5, 1984 · CGUER · Destroyed > The acft made one forced landing after engine trouble. The plt cleaned the fuel filters and took off for a test flt. The engine failed during takeoff. Post accident inspection of the engine showed it would run but the oil pressure was very low. - [NTSB CHI84LA270](https://openairdocs.org/ntsb/CHI84LA270.md): Hughes 500C/369HS · Arena, WI · Accident · No injuries · Limited investigation · Final report · Jun 30, 1984 · N377ST · Substantial damage > During an agricultural spraying operation the helicopter eng lost pwr. The plt attempted an autorotation. The acft rolled over on landing. The plt stated that he observed a loss of eng & rotor RPM, necessatating the autorotation. Inspection of the eng… - [NTSB CHI84LA210](https://openairdocs.org/ntsb/CHI84LA210.md): Wagner Cuby WAG-A-BOND · Lyons, WI · Accident · Minor injuries · Limited investigation · Final report · May 27, 1984 · N34WA · Substantial damage > The plt noticed '...a little power loss...' After takeoff at about 550 AGL. He turned downwind & flew a normal traffic pattern, but at a lower altitude. The acft stalled during the base turn. The plt stated that the loss of power was due to the mixture… - [NTSB CHI84FA022](https://openairdocs.org/ntsb/CHI84FA022.md): Piper PA-28-181 · Dodgeville, WI · Accident · Minor injuries · Field investigation · Final report · Oct 16, 1983 · N8419G · Destroyed > Momentarily after lifting off, the plt heard a pronounced decrease in eng noise & noted that the tachometer indication had dropped to 1950 RPM. He elected to abort, but was unable to stop on the remaining rwy. After departing the rwy, the acft hit an object &… - [NTSB CHI83FA370](https://openairdocs.org/ntsb/CHI83FA370.md): Zenair Cricket MC12 · Oshkosh, WI · Accident · Minor injuries · Field investigation · Final report · Aug 5, 1983 · CGAYW · Substantial damage > During a formation takeoff, the plt was flying in a left wingman position & the flt entered a relatively steep climb. The plt stated that the airspeed was slightly above the stall speed at about 100 to 150 ft AGL when the left eng lost power & the acft began… - [NTSB CHI83LA219](https://openairdocs.org/ntsb/CHI83LA219.md): Piper PA25 · Tomah, WI · Accident · No injuries · Limited investigation · Final report · May 17, 1983 · N4521Y · Substantial damage > The acft lost power and made a forced landing immediately after takeoff on an aerial application mission. The landing gear collapsed during the landing. The pilot stated that the accident occurred on the 5th flt of the day after taking off on runway 27 and… ## 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" = 352) ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC ``` This list as a web page: https://openairdocs.org/ntsb?occurrence=352&state=WI --- 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.