# NTSB investigations, IL: 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 CHI07LA240](https://openairdocs.org/ntsb/CHI07LA240.md): Aircoupe F-1A · Greenwood, IL · Accident · No injuries · Limited investigation · Final report · Jul 30, 2007 · N3041G · Substantial damage
  > The loss of engine power due to carburetor icing, which resulted in the pilot having to perform a forced landing to unsuitable terrain. Factors contributing to the accident were the carburetor icing conditions and the broken carbuerator heat lever.
- [NTSB CHI05CA256](https://openairdocs.org/ntsb/CHI05CA256.md): Boeing A75N1 · Ellisville, IL · Accident · No injuries · Data collection · Final report · Sep 7, 2005 · N52551 · Substantial damage
  > The loss of engine power due to the failure of the number four connecting rod. A factor to the accident was the soybean crop.
- [NTSB CHI02LA281](https://openairdocs.org/ntsb/CHI02LA281.md): Ercoupe 415-CD · Effingham, IL · Accident · No injuries · Limited investigation · Final report · Sep 15, 2002 · N3989H · Substantial damage
  > The partial loss of engine power due to the seized exhaust valve. A factor was the soft field.
- [NTSB CHI02LA166](https://openairdocs.org/ntsb/CHI02LA166.md): Jacobs Rutan Vari Viggen · Urbana, IL · Accident · 1 fatal · Limited investigation · Final report · Jun 16, 2002 · N915D · Destroyed
  > The pilot's failure to abort the takeoff. Additional factors included the partial loss of engine power due to an excessively rich mixture as a result of a bad accelerator pump housing seal, and the pilot failed to maintain control of the airplane.
- [NTSB CHI02LA150](https://openairdocs.org/ntsb/CHI02LA150.md): Piper PA-24-250 · Sparta, IL · Accident · No injuries · Limited investigation · Final report · May 31, 2002 · N5360P · Substantial damage
  > The total loss of engine power due to a separated cylinder and the failure of the pilot to perform a precautionary landing at the nearest suitable airport when the engine had a partial loss of engine power. The failure of the aircraft owners to perform an…
- [NTSB CHI99LA275](https://openairdocs.org/ntsb/CHI99LA275.md): Fairchild 24 C8C · La Fayette, IL · Accident · No injuries · Limited investigation · Final report · Jul 28, 1999 · N15345 · Substantial damage
  > the pilot's failure to obtain/maintain the proper descent rate. A factor to the accident was the partial loss of engine power as a result of the exhaust valve keeper becoming unlocked, which jammed the exhaust valve.
- [NTSB CHI97LA299](https://openairdocs.org/ntsb/CHI97LA299.md): Beech C23 · Champaign, IL · Accident · No injuries · Limited investigation · Final report · Sep 24, 1997 · N1851Z · Substantial damage
  > an undetermined engine and/or oil system failure that resulted in an oil leak and subsequent loss of engine power. A related factor was: high vegetation (corn crop) in the emergency landing area.
- [NTSB CHI97LA142](https://openairdocs.org/ntsb/CHI97LA142.md): Mooney M20F · Wheeling, IL · Accident · No injuries · Limited investigation · Final report · May 20, 1997 · N6950V · Substantial damage
  > binding of the number four exhaust valve, which resulted in a partial power loss. A factor was the ravine.
- [NTSB CHI97IA117](https://openairdocs.org/ntsb/CHI97IA117.md): Boeing 737-200 · Chicago, IL · Incident · Minor injuries · Incident investigation · Final report · Apr 28, 1997 · N9063U · Minor damage
  > inadequate nickel plating was applied to the compressor disk during the rework process at the operator's overhaul facility, which resulted in a brittle fracture in the disk and an uncontained engine failure. A factor was the operator's lack of written…
- [NTSB CHI96LA340](https://openairdocs.org/ntsb/CHI96LA340.md): Cessna 150 · Wonder Lake, IL · Accident · No injuries · Limited investigation · Final report · Sep 14, 1996 · N1381Q · Substantial damage
  > a blocked exhaust pipe as a result of an inadequate weld repair to the muffler.
- [NTSB CHI95IA142](https://openairdocs.org/ntsb/CHI95IA142.md): Mcdonnell Douglas DC10-10 · Chicago, IL · Incident · No injuries · Incident investigation · Final report · May 1, 1995 · N1811U · Minor damage
  > failure of the safety wire and/or safety wire lug arm on one of the stage one to two disk flange bolts due to an inadequate safetying method.
- [NTSB CHI94LA332](https://openairdocs.org/ntsb/CHI94LA332.md): Cessna 170 · St. Anne, IL · Accident · No injuries · Limited investigation · Final report · Sep 18, 1994 · N4216V · Substantial damage
  > Engine failure due to an inadequately reconditioned cylinder.
- [NTSB CHI93LA343](https://openairdocs.org/ntsb/CHI93LA343.md): Cessna T210N · Lake In The Hil, IL · Accident · No injuries · Limited investigation · Final report · Aug 31, 1993 · N6649N · Substantial damage
  > Chafing of a fuel system line.
- [NTSB CHI93LA256](https://openairdocs.org/ntsb/CHI93LA256.md): Quad City Challenger II Specia · Ottawa, IL · Accident · Minor injuries · Limited investigation · Final report · Jul 13, 1993 · N415JR · Substantial damage
  > The pilot in command's failure to maintain proper clearance. Factors to the accident include an oil fouled spark plug and a power ground cable.
- [NTSB CHI92FA282](https://openairdocs.org/ntsb/CHI92FA282.md): Cessna 152 · Ottawa, IL · Accident · 1 fatal · Field investigation · Final report · Sep 20, 1992 · N4591P · Destroyed
  > Pilot did not maintain a proper airspeed which led to an inadvertent stall/spin at a low altitude where the pilot could not perform a recovery.
- [NTSB CHI92LA277](https://openairdocs.org/ntsb/CHI92LA277.md): Cessna 172N · Geneseo, IL · Accident · No injuries · Limited investigation · Final report · Sep 13, 1992 · N738KX · Substantial damage
  > The pilot's attempted operation of the airplane with a known defficiency in the equipment.
- [NTSB CHI92LA222](https://openairdocs.org/ntsb/CHI92LA222.md): Hughes 269C · Aurora, IL · Accident · No injuries · Limited investigation · Final report · Aug 1, 1992 · N58335 · Substantial damage
  > Fatigue fracture of the engine crankshaft resulting in loss of power. Factors were the pilot's excessive descent and his lack of total experience.
- [NTSB CHI92LA179](https://openairdocs.org/ntsb/CHI92LA179.md): Cessna 210B · Belleville, IL · Accident · No injuries · Limited investigation · Final report · Jun 14, 1992 · N9545X · Substantial damage
  > The improper fuel pump high end discharge adjustment. A related factor is improper maintenance/annual inspection.
- [NTSB CHI92LA139](https://openairdocs.org/ntsb/CHI92LA139.md): Piper PA-28-140D · Markham, IL · Accident · Minor injuries · Limited investigation · Final report · May 2, 1992 · N1814T · Substantial damage
  > The result of an inadequate annual inspection by other maintenance personnel and, as a result, a total failure of the throttle linkage. A factor was the pilot overshot his intended emergency landing area, due to excessive speed.
- [NTSB CHI92LA052](https://openairdocs.org/ntsb/CHI92LA052.md): Cessna 172 · Carlyle, IL · Accident · Serious injuries · Limited investigation · Final report · Dec 11, 1991 · N8316X · Substantial damage
  > Fuel contamination and blockage of the carburetor, which restuled in fuel starvation. The high obstructions (trees) were a related factor.
- [NTSB CHI92LA002](https://openairdocs.org/ntsb/CHI92LA002.md): Piper PA-12 · Roscoe, IL · Accident · Minor injuries · Limited investigation · Final report · Oct 7, 1991 · N2499M · Substantial damage
  > Operation of an aircraft with known deficiencies and deterioration/failure of the magneto(s). Factors related to the accident were: the lack of an annual inspection and non-compliance with an airworthiness directive (AD).
- [NTSB NYC91FA246](https://openairdocs.org/ntsb/NYC91FA246.md): Cessna 172P · West Chicago, IL · Accident · 2 fatal · Field investigation · Final report · Sep 21, 1991 · N65729 · Substantial damage
  > The pilot's improper in-flight decision to return to the airport following a loss of engine power at a low altitude. The pilot failed to maintain airspeed which resulted in an inadvertent stall at an altitude insufficient for recovery. Factors contributing to…
- [NTSB CHI90FA233](https://openairdocs.org/ntsb/CHI90FA233.md): Piper PA-23-160 · Odell, IL · Accident · No injuries · Field investigation · Final report · Aug 16, 1990 · N4231P · Substantial damage
  > A loss of left engine power due to oil accumulation in the right magneto and a non-usable spark lead from the left magneto. In addition, the right engine was unable to provide adequate power to maintain altitude due to a partial blockage in the carburetor by…
- [NTSB CHI90DEV08](https://openairdocs.org/ntsb/CHI90DEV08.md): Hilvety Cwii · Moweaqua, IL · Accident · Minor injuries · Final report · Aug 3, 1990 · N7176J · Substantial damage
  > The pilot's failure to maintain flying speed and stalling the airplane while attempting to reverse course for a forced landing. Contributing to the accident was the pilot's failure to properly reinstall spark plug cables during servicing conducted prior to…
- [NTSB CHI89LA191](https://openairdocs.org/ntsb/CHI89LA191.md): Bell 206B-3 · Chicago, IL · Accident · No injuries · Limited investigation · Final report · Sep 19, 1989 · N9229X · Substantial damage
  > A hard landing caused by the pilot not being able to judge his altitude above or his closure rate to terrain because of high vegetation in the area available for a forced landing. An engine faulure caused by material failure of the compressor section is a…
- [NTSB CHI89FA109](https://openairdocs.org/ntsb/CHI89FA109.md): Piper PA-28R-200 · Saint Charles, IL · Accident · No injuries · Field investigation · Final report · Jun 16, 1989 · N5242T · Substantial damage
  > The failure of the mechanic to properly inspect the alternate air door during annual inspection. This failure led to air starvation, loss of power, and a forced landing by the pilot onto rough terrain.
- [NTSB CHI88DEV03](https://openairdocs.org/ntsb/CHI88DEV03.md): Hughes 369HS · Ashland, IL · Accident · No injuries · Final report · Jul 28, 1988 · N9033F · Substantial damage
  > As the helicopter was taking off, there was a loss of rotor RPM which was accompanied by a loss of fuel flow to the eng. The plt aborted the takeoff, but during touchdown, the main rotor blades flexed downward & severed the. Tail boom. An inspn of the eng…
- [NTSB CHI88LA099](https://openairdocs.org/ntsb/CHI88LA099.md): Cessna 150M · Zeigler, IL · Accident · No injuries · Limited investigation · Final report · Apr 21, 1988 · N9410U · Substantial damage
  > Upon completion of a practice emergency landing procedure during an instructional flight, the engine started to run rough and then quit. The instructor was able to regain partial power, and made forced landing in freshly plowed field. The aircraft nosed over…
- [NTSB CHI86FA215](https://openairdocs.org/ntsb/CHI86FA215.md): Cessna 172P · Grayslake, IL · Accident · No injuries · Field investigation · Final report · Aug 29, 1986 · N53700 · Substantial damage
  > Drg cruise flt, there was a loss of eng power (decreasing to 1900 RPM). The plt initiated a precautionary landing on rwy 27, but overran the intended landing area. The acft contd beyond the end of the rwy & subsequently flipped over in a corn field, west of…
- [NTSB CHI85IA032](https://openairdocs.org/ntsb/CHI85IA032.md): McDonnell Douglas DC-10-30 · Chicago, IL · Incident · No injuries · Incident investigation · Final report · Oct 27, 1984 · N1852U · Minor damage
  > Shortly after takeoff, the flight crew heard a noise from the right side of the aircraft, which sounded like an engine compressor stall. The #3 engine was shut down & the crew made an uneventful landing at the departure airport. Pieces of cowling from the…
- [NTSB CHI84LA387](https://openairdocs.org/ntsb/CHI84LA387.md): Mooney M20E · Lansing, IL · Accident · No injuries · Limited investigation · Final report · Sep 8, 1984 · N10SF · Substantial damage
  > The plt had just demonstrated the acft for sale and filed an IFR flt plan. Run up and pre-takeoff checks were rushed to beat void clearance time. Just before liftoff, plt noted sluggish acceleration but believed insufficient runway remained to successfully…
- [NTSB CHI83LA424](https://openairdocs.org/ntsb/CHI83LA424.md): Piper PA-31-350 · Wheeling, IL · Accident · No injuries · Limited investigation · Final report · Sep 12, 1983 · N62971 · Substantial damage
  > The acft went off the rwy and collapsed the landing gear after power loss during takeoff. Three of the passengers furnished statements and 2 seemed to think that the left engine quit. The acft turned to the right but the pilot did notknow which engine quit.…
- [NTSB CHI83LU011](https://openairdocs.org/ntsb/CHI83LU011.md): Pioneer Flightstar · Robinson, IL · Accident · Serious injuries · Final report · Aug 27, 1983 · UNREG · Substantial damage
  > The plt reported that after taking off, he stayed low over farm fields. He reported that he traveled about 1 1/4 mi from the arpt & decided to return & land. However, during a left turn, the ultralight vehicle crashed. The plt was seriously injured & did not…
- [NTSB CHI82DA367](https://openairdocs.org/ntsb/CHI82DA367.md): Cessna 207 · Bedford Park, IL · Accident · No injuries · Final report · Sep 27, 1982 · N1728U · Substantial damage
  > Pilot made forced landing at night in railroad yard. Engine had loose fuel line.

## 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" = 'IL' 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=IL

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