# NTSB investigations, MO: 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 CHI05LA073](https://openairdocs.org/ntsb/CHI05LA073.md): Piper PA-28-140 · Macon, MO · Accident · Serious injuries · Limited investigation · Final report · Feb 25, 2005 · N4468T · Substantial damage
  > The loss of engine power due to failure of the engine exhaust valve. The pilot's inability to maintain clearance from obstacles, the trees, the residence and the pilot's evasive maneuver were factors in the accident.
- [NTSB CHI02LA297](https://openairdocs.org/ntsb/CHI02LA297.md): Jonas Nieuport · Creve Coeur, MO · Accident · No injuries · Limited investigation · Final report · Sep 28, 2002 · N678DJ · Substantial damage
  > The installation of improper carburetor jets resulting in an improper fuel mixture and loss of engine power.
- [NTSB CHI02LA186](https://openairdocs.org/ntsb/CHI02LA186.md): Cessna 175 · Kaiser/Lake Oza, MO · Accident · No injuries · Limited investigation · Final report · Jul 9, 2002 · N175HL · Substantial damage
  > The pilot's decision to conduct the flight with a known deficiency in the aircraft, a failure by the pilot to execute a precautionary landing due to "sluggish" performance during takeoff, the loss of engine power due to the malfunction of the left magneto,…
- [NTSB CHI99LA277](https://openairdocs.org/ntsb/CHI99LA277.md): Cessna 150M · Sikeston, MO · Accident · No injuries · Limited investigation · Final report · Aug 6, 1999 · N3755V · Substantial damage
  > the loss of engine power due to the stuck exhaust valve. A factor was the lack of suitable terrain available for the forced landing.
- [NTSB CHI99FA163](https://openairdocs.org/ntsb/CHI99FA163.md): Cessna 421B · Jefferson City, MO · Accident · 4 fatal · Field investigation · Final report · May 27, 1999 · N34TM · Destroyed
  > the pilot failed to maintain control of the airplane. A factor was the partial loss of power due to the exhaust valve fatigue failure.
- [NTSB CHI98LA366](https://openairdocs.org/ntsb/CHI98LA366.md): Beech BE-35 · Point Lookout, MO · Accident · No injuries · Limited investigation · Final report · Sep 29, 1998 · N8946M · Substantial damage
  > The pilot's continued flight with a known deficiency in equipment. Contributing to the accident was the maintenance adjustment that was not completed by the mechanic.
- [NTSB CHI95FA226](https://openairdocs.org/ntsb/CHI95FA226.md): Piper PA-32-300 · Festus, MO · Accident · 3 fatal · Field investigation · Final report · Jul 15, 1995 · N82CA · Destroyed
  > an improper annual inspection, the fouled spark plugs, the arcing magneto distributor, and the pilot's attempt to take off with known deficiencies.
- [NTSB CHI95LA081](https://openairdocs.org/ntsb/CHI95LA081.md): Piper PA-28-140 · St. Louis, MO · Accident · Serious injuries · Limited investigation · Final report · Feb 4, 1995 · N694SK · Destroyed
  > A loss of engine power due to an excessive fuel mixture caused by undetermined reasons.
- [NTSB CHI92LA167](https://openairdocs.org/ntsb/CHI92LA167.md): Piper PA-34-200 · Wyatt, MO · Accident · No injuries · Limited investigation · Final report · Jun 9, 1992 · N1050X · Substantial damage
  > An improper decision during flight when the pilot in command overflew two suitable landing areas after a partial power loss in one engine. The mechanical deficiencies in the engines were factors in the engine.
- [NTSB CHI92LA162](https://openairdocs.org/ntsb/CHI92LA162.md): Commander C3C · Grain Valley, MO · Accident · Serious injuries · Limited investigation · Final report · Jun 4, 1992 · N136E · Substantial damage
  > The jammed (kinked) choke plate control cable, which resulted in reduced power and collision with rising terrain.
- [NTSB CHI92LA146](https://openairdocs.org/ntsb/CHI92LA146.md): Cessna 150F · Eldon, MO · Accident · No injuries · Limited investigation · Final report · May 8, 1992 · N8081S · Substantial damage
  > A binding exhaust valve resulting in a partial loss of engine power. Factors in the accident are rising terrain conditions, inadequate aircraft climb capability, and a ditch in the forced landing area.
- [NTSB CHI91LA267](https://openairdocs.org/ntsb/CHI91LA267.md): Cessna 150M · Old Monroe, MO · Accident · No injuries · Limited investigation · Final report · Aug 16, 1991 · N2842V · Substantial damage
  > The separation of the throttle control cable. Contributing to the accident was the rough terrain on which a forced landing was made.
- [NTSB CHI91DCG02](https://openairdocs.org/ntsb/CHI91DCG02.md): Huff Pulsar · Missouri City, MO · Accident · Serious injuries · Final report · Apr 17, 1991 · N89PB · Substantial damage
  > Oil fouled spark plugs resulting in a partial loss of engine power. Soft terrain in the forced landing area was a factor.
- [NTSB MKC90LA084](https://openairdocs.org/ntsb/MKC90LA084.md): Aeronca 7AC · Branson, MO · Accident · No injuries · Limited investigation · Final report · Apr 12, 1990 · N84055 · Substantial damage
  > A disconnected throttle linkage that was inadequately inspected.
- [NTSB MKC89LA062](https://openairdocs.org/ntsb/MKC89LA062.md): Cessna 152 · Kansas City, MO · Accident · No injuries · Limited investigation · Final report · Feb 23, 1989 · N25909 · Substantial damage
  > Improper use of the carburetor heat control by pilot in command.
- [NTSB MKC88FA171](https://openairdocs.org/ntsb/MKC88FA171.md): Piper J3C-65 · Goodman, MO · Accident · Serious injuries · Field investigation · Final report · Sep 13, 1988 · N3533N · Substantial damage
  > Engine ignition and lubrication problems which resulted in the pilot's election to execute a precautionary landing. A contributing factor was the pilot's inability to see and avoid power lines in his approach path due to bright sunshine.
- [NTSB MKC87LA160](https://openairdocs.org/ntsb/MKC87LA160.md): North American Navion · Chillicothe, MO · Accident · No injuries · Limited investigation · Final report · Aug 8, 1987 · N8569H · Substantial damage
  > The PIC was ferrying the navion to a distant location to undergo an annual insp. Abt 20 min into the flt, the PIC rptd experiencing eng pblms. The PIC was able to fly to a nearby arpt for a precautionary lndg. Instead of making the lndg the PIC went around to…
- [NTSB MKC87DCA03](https://openairdocs.org/ntsb/MKC87DCA03.md): Burkholder Q-2 · St Charles, MO · Accident · Serious injuries · Final report · Aug 8, 1987 · N3891P · Substantial damage
  > Drg takeoff, the eng began to run rough at an estd alt of 50 to 100 ft AGL & would not developed enough power to maint flt. Subsequently, as the plt was lndg in a soybean field, the acft flipped over & came to rest in an upright attitude. A teardown of the…
- [NTSB MKC86LA086](https://openairdocs.org/ntsb/MKC86LA086.md): Grumman G164B · Advance, MO · Accident · No injuries · Limited investigation · Final report · Apr 12, 1986 · N6609Q · Substantial damage
  > The airplane was being operated as an agricultural aircraft when the engine started backfiring and then quit. During the forced landing in a plowed field, the airplane flipped forward to the inverted position. Investigation revealed the teeth on the left…
- [NTSB MKC86LA078](https://openairdocs.org/ntsb/MKC86LA078.md): Cessna 172 · Ava, MO · Accident · No injuries · Limited investigation · Final report · Apr 2, 1986 · N80751 · Substantial damage
  > The plt reports that the eng began to run rough and lose RPM while the acft was cruising at 2500 ft. he said he attempted emerg proc but the loss of RPM continued and he decided on an off-arpt landing. During the apch to the landing area the eng RPM dropped…
- [NTSB MKC86FA017](https://openairdocs.org/ntsb/MKC86FA017.md): Silvaggio Cassutt 111M · Plattsburg, MO · Accident · Serious injuries · Field investigation · Final report · Oct 25, 1985 · N4AS · Substantial damage
  > The acft was level, in cruise when the plt noticed high eng temperatures. He stated that he started a shallow climb and headed for the nearest arpt. En route to nearest arpt, smoke came into the cockpit and the plt heard a loud noise that was accompanied by…
- [NTSB MKC85LA166](https://openairdocs.org/ntsb/MKC85LA166.md): James Gress Quickie · Fenton, MO · Accident · Minor injuries · Limited investigation · Final report · Jul 24, 1985 · N32JG · Substantial damage
  > While taking off, the plt noted a partial loss of eng power during the initial climb. He was unable to maintain alt & tried to maneuver around trees near the departure end of the rwy. However, the acft descended into the tree tops, then crashed onto the roof…
- [NTSB MKC85LA141](https://openairdocs.org/ntsb/MKC85LA141.md): Cessna 150M · Rushville, MO · Accident · Minor injuries · Limited investigation · Final report · Jun 26, 1985 · N704ZS · Substantial damage
  > Shortly after the plt departed on a flt, the eng lost power while the acft was cruising at 1800 ft MSL over hilly terrain. The plt reported that the eng speed dropped to 800 RPM & he was unable to correct the situation. During a forced landing on soft…
- [NTSB MKC85LA013](https://openairdocs.org/ntsb/MKC85LA013.md): Piper PA-28-151 · Springfield, MO · Accident · No injuries · Limited investigation · Final report · Nov 3, 1984 · N44095 · Substantial damage
  > The acft collided with trees during a forced landing, while on a dual instructional flt. The CFI said after the climb tocruise the eng began to slow dwn. The CFI took control of the acft to return to arpt of departure. He said the vibrationwas excessive as…
- [NTSB MKC84FCA02](https://openairdocs.org/ntsb/MKC84FCA02.md): Mooney M20E · Chesterfield, MO · Accident · Serious injuries · Final report · Aug 28, 1984 · N9373M · Destroyed
  > The acft crashed short of the rwy after making a 180 deg turn after takeoff following a loss of power. The plt stated that after takeoff & at an indicated airspeed of 100 to 110 mph, at an altitude of 50 ft, the acft eng started to lose power. He decided to…
- [NTSB MKC84FA221](https://openairdocs.org/ntsb/MKC84FA221.md): Morgan T. Melton SKY Rider · West Plains, MO · Accident · 1 fatal · Field investigation · Final report · Jul 19, 1984 · N39963 · Destroyed
  > The owner/bulder stated that he & his brother had been having an eng problem which they assumed was due to a vapor lock. They had installed a metal box around the electric fuel pump to insulate it from the heat of the exhaust pipe. The brother initiated a hi…
- [NTSB MKC84LA188](https://openairdocs.org/ntsb/MKC84LA188.md): Cessna 152 · Lee'S Summit, MO · Accident · No injuries · Limited investigation · Final report · Jun 28, 1984 · N25496 · Substantial damage
  > While taking off from a touch-&-go landing, the eng failed to develope full power. The instructor plt (CFI) pulled the throttle back to abort the takeoff, but the RPM would not reduce to idle. Subsequently, the acft continued aprx 500 ft past the end of the…
- [NTSB MKC84FA010](https://openairdocs.org/ntsb/MKC84FA010.md): Convair 340 · St. Louis, MO · Accident · No injuries · Field investigation · Final report · Oct 26, 1983 · N30DR · Substantial damage
  > While in a climb after takeoff, the aircrew encountered an eng problem (which was reported as detonation) & requested clearance to return to the departure arpt. The flt was vectored for a right traffic pattern to rwy 24. The plt reported he was at 2000 ft MSL…
- [NTSB MKC84FA005](https://openairdocs.org/ntsb/MKC84FA005.md): Bellanca 8KCAB · Sullivan, MO · Accident · 2 fatal · Field investigation · Final report · Oct 9, 1983 · N55008 · Destroyed
  > The acft collided with trees during an attempted go-around from a precautionary/forced landing. There were no radio calls from the pilot but evidence discovered in the engine tear down revealed internal problems. The magneto had broken and the oil pan…
- [NTSB MKC83FA064](https://openairdocs.org/ntsb/MKC83FA064.md): Cessna 310F · Vichy, MO · Accident · Minor injuries · Field investigation · Final report · Feb 7, 1983 · N202JM · Destroyed
  > The plt stated that shortly after takeoff, at 500 ft AGL, the left prop feathered by itself, then the left engine quit & he was unable to restart it. He elected to divert to rolla, MO & land at the national arpt which had a longer rwy. While en route, he…

## 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" = 'MO' 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=MO

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