# NTSB investigations: 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.

Page 35 of 58 · 2,878 cases

## Cases, newest first

- [NTSB LAX90LA066](https://openairdocs.org/ntsb/LAX90LA066.md): Mooney M20B · Santa Ana, CA · Accident · Minor injuries · Limited investigation · Final report · Jan 7, 1990 · N74520 · Substantial damage
  > The failure of bolts retaining the idler shaft allowing the cam shift timing to change and by its failure to drive the left magneto.
- [NTSB ATL90LA042](https://openairdocs.org/ntsb/ATL90LA042.md): Bell TH-1 · Creola, AL · Accident · No injuries · Limited investigation · Final report · Dec 20, 1989 · N106SR · Substantial damage
  > The loss of engine power due to a #21 bearing failure. The bearing failed as a result of inadequate maintenance. A factor in the accident was the pilot operating the helicopter within the avoid operating envelope.
- [NTSB NYC90FA038](https://openairdocs.org/ntsb/NYC90FA038.md): Boeing 727-31 · Newark, NJ · Accident · No injuries · Field investigation · Final report · Dec 9, 1989 · N727PJ · Substantial damage
  > Thermal distress of the first stage turbine blades of the nuber one engine causing a degradation of material properties which resulted in blade fractures. The reason for the thermal distress was not determined.
- [NTSB ATL90LA035](https://openairdocs.org/ntsb/ATL90LA035.md): Waco HRE · Alexander City, AL · Accident · Serious injuries · Limited investigation · Final report · Dec 6, 1989 · N31654 · Substantial damage
  > An engine failure due to separation of the magneto as a result of a broken mounting stud. The mounting stud most likely failed due to vibrations induced by an inadequately balanced crankshaft.
- [NTSB SEA90LA025](https://openairdocs.org/ntsb/SEA90LA025.md): Hiller UH-12E · Raymond, WA · Accident · No injuries · Limited investigation · Final report · Nov 29, 1989 · N9762C · Substantial damage
  > Loss of engine power due to fatigue failure of the impeller. The helicopter was substantially damaged as a result of a roll-over on uneven terrain.
- [NTSB FTW90LA035](https://openairdocs.org/ntsb/FTW90LA035.md): Beech V35 · Crosbyton, TX · Accident · Minor injuries · Limited investigation · Final report · Nov 25, 1989 · N27007 · Destroyed
  > Improper overhaul of the aircraft engine by maintenance personnel that led to the complete loss of engine oil due to an undertorqued oil cooler assembly. Factors in the accident were the failure of maintenance personnel to detect the condition during the…
- [NTSB DEN90LA026](https://openairdocs.org/ntsb/DEN90LA026.md): Cessna T210L · Gillette, WY · Accident · Minor injuries · Limited investigation · Final report · Nov 22, 1989 · N843YT · Substantial damage
  > Forced landing in unsuitable terrain as a result of an engine crankshaft failure at low level cruise flight.
- [NTSB CHI90LA039](https://openairdocs.org/ntsb/CHI90LA039.md): Beech V35B · Momence, IL · Accident · No injuries · Limited investigation · Final report · Nov 18, 1989 · N1809W · Substantial damage
  > Gradual total failure of the powerplant due to oil exhaustion during a night cross country operation, and the subsequent gear-up forced landing on a frozen field.
- [NTSB LAX90LA035](https://openairdocs.org/ntsb/LAX90LA035.md): Cessna 177RG · Van Nuys, CA · Accident · Serious injuries · Limited investigation · Final report · Nov 17, 1989 · N2069Q · Substantial damage
  > The incorrect installation of the engine cowl and baffle seals during the installation of the engine following an overhaul.
- [NTSB ANC90LA009](https://openairdocs.org/ntsb/ANC90LA009.md): de Havilland DHC-2 · Kenai, AK · Accident · No injuries · Limited investigation · Final report · Nov 7, 1989 · N64276 · Substantial damage
  > Failure of the engine bearing, which resulted in a subsequent total loss of power. Contributing factors were: dark night and rough/uneven terrain.
- [NTSB LAX90LA015](https://openairdocs.org/ntsb/LAX90LA015.md): Grumman AA-1A · Borrego Springs, CA · Accident · Minor injuries · Limited investigation · Final report · Oct 29, 1989 · N9330L · Substantial damage
  > The failure of the engine exhaust valve.
- [NTSB NYC90LA021](https://openairdocs.org/ntsb/NYC90LA021.md): Boeing B75N · Willimantic, ME · Accident · Minor injuries · Limited investigation · Final report · Oct 28, 1989 · N68972 · Substantial damage
  > An inadvertent stall clearing trees during a forced landing following a power loss due to a fuel line separating from the carburetor and fuel starvation.
- [NTSB LAX90DUD01](https://openairdocs.org/ntsb/LAX90DUD01.md): Wheeler Acft. Express 100 · W. Los Angeles, CA · Accident · Minor injuries · Final report · Oct 27, 1989 · N200EX · Destroyed
  > The mechanical failure of the engine due to the wearing away of the piston pin plug, connecting rod bearings, and the breakage of the connecting rod at the lower end. Contributing to the severity of the accident was the forced landing into a residential area…
- [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 MIA90LA016](https://openairdocs.org/ntsb/MIA90LA016.md): Lake LA-4 · Apalachicola, FL · Accident · Minor injuries · Limited investigation · Final report · Oct 21, 1989 · N1212L · Substantial damage
  > Binding and subsequent failure of the #1 exhaust valve. A factor related to the accident was: the soft/wet (swampy) terrain condition in the emergency landing area.
- [NTSB ATL90LA019](https://openairdocs.org/ntsb/ATL90LA019.md): Cessna 177RG · Albertville, AL · Accident · No injuries · Limited investigation · Final report · Oct 20, 1989 · N34080 · Substantial damage
  > The failure of maintenance personnel to properly inspect the magneto during a recent annual inspection.
- [NTSB LAX90DVA01](https://openairdocs.org/ntsb/LAX90DVA01.md): Hiller 12E · Huron, CA · Accident · Serious injuries · Final report · Oct 16, 1989 · N4026G · Substantial damage
  > The pilot failed to properly preflight the airplane before departing on the accident flight and misjudged the flare during the ensuing autorotation. Factors relating to this accident were oil starvation and total failure of the connecting rod.
- [NTSB MIA90LA010](https://openairdocs.org/ntsb/MIA90LA010.md): Brickman Eipper Mxii · Miami, FL · Accident · No injuries · Limited investigation · Final report · Oct 12, 1989 · N181BB · Substantial damage
  > A cracked impulse line to the fuel pump, which resulted in an inoperative fuel pump and fuel starvation. Factors related to the accident were: the vehicles and high obstructions in the emergency landing area, which necessitated a maneuver to avoid their…
- [NTSB FTW90LA010](https://openairdocs.org/ntsb/FTW90LA010.md): Piper PA-28-140 · Henderson, TX · Accident · Minor injuries · Limited investigation · Final report · Oct 12, 1989 · N6636W · Substantial damage
  > The loss of engine power as a result of a failure of the number 3 exhaust valve due to undetermined reasons. Factors involved in the accident were the previous owner's delay in overhauling the engine and his failure to adhere to the manufacturer's recommended…
- [NTSB CHI90DEK01](https://openairdocs.org/ntsb/CHI90DEK01.md): Luscombe 8A · Findlay, OH · Accident · 1 fatal · Final report · Oct 12, 1989 · N45895 · Destroyed
  > Pilot's failure to maintain control of the airplane following engine failure due to fuel starvation, resulting in a stall/spin. Additional causes were a corroded fuel system & carburetor, improper maintenance/rebuild, operation with known deficiencies in…
- [NTSB LAX90DUJ03](https://openairdocs.org/ntsb/LAX90DUJ03.md): Hiller UH-12E · Yuma, AZ · Accident · Serious injuries · Final report · Oct 11, 1989 · N689SB · Substantial damage
  > The pilot misjudged the flare altitude. Contributing to this accident was the failure of the engine torsional coupling which ultimately caused the total loss of power.
- [NTSB NYC90LA004](https://openairdocs.org/ntsb/NYC90LA004.md): Champion 7ECA · Beaver Falls, PA · Accident · No injuries · Limited investigation · Final report · Oct 4, 1989 · N123DA · Substantial damage
  > The right fuel vent became clogged allowing the left fuel tank to become exhausted. In addition, the pilot failed to adequately monitor the fuel supply in each tank.
- [NTSB FTW90DPJ01](https://openairdocs.org/ntsb/FTW90DPJ01.md): Zimmerman Moni Motorglider · Oklahoma City, OK · Accident · Minor injuries · Final report · Oct 4, 1989 · N15JZ · Substantial damage
  > Power loss due to the deteriorated muffler baffle which was not discovered in the recent annual inspection. A factor was the pilot's failure to properly analyze and correct for the headwind.
- [NTSB LAX89LA333](https://openairdocs.org/ntsb/LAX89LA333.md): Bellanca 17-30A · Palo Alto, CA · Accident · Minor injuries · Limited investigation · Final report · Sep 29, 1989 · N8272R · Substantial damage
  > A loss of engine power due to fuel starvation. The fuel starvation was the result of vane particles from the deteriorated electric fuel pump restricting the upstream flow of fuel.
- [NTSB MKC89LA200](https://openairdocs.org/ntsb/MKC89LA200.md): Hughes 269C · Bloomington, MN · Accident · No injuries · Limited investigation · Final report · Sep 28, 1989 · N95KS · Substantial damage
  > Failure of the engine crankshaft. The light conditions at dawn and the vehicles were considered to be contributing factors.
- [NTSB LAX89LA327](https://openairdocs.org/ntsb/LAX89LA327.md): Cessna 210B · Newport Beach, CA · Accident · Minor injuries · Limited investigation · Final report · Sep 27, 1989 · N9615X · Substantial damage
  > The fatigue failure of the engine's crankshaft, resulting in a total loss of power over unsuitable terrain. The pilot ditched the airplane because he was unable to glide to shore.
- [NTSB NYC89DHM06](https://openairdocs.org/ntsb/NYC89DHM06.md): Maxair XP-503 Drifter · Warwick, NY · Accident · Serious injuries · Final report · Sep 17, 1989 · N13WR · Destroyed
  > Failure of an engine piston wrist pin bearing.
- [NTSB FTW89LA167](https://openairdocs.org/ntsb/FTW89LA167.md): Mooney M20E · Brenham, TX · Accident · Minor injuries · Limited investigation · Final report · Sep 17, 1989 · N9462V · Substantial damage
  > Improper maintenance, improperly secured oil line to the propeller governor, failure of the propeller governor oil line, and subsequent loss of oil, which resulted in oil exhaustion. Factors related to the accident were: failure of maintenance personnel to…
- [NTSB MKC89FA196](https://openairdocs.org/ntsb/MKC89FA196.md): Piper PA-32-300 · Bentonville, AR · Accident · 2 fatal · Field investigation · Final report · Sep 11, 1989 · N8995N · Destroyed
  > A loose oil line that became disconnected, when maintenance/inspection of the aircraft had not been completed, which resulted in loss of engine oil and subsequent failure of the connecting rod from lack of lubrication. A factor related to the accident was:…
- [NTSB LAX89FA307](https://openairdocs.org/ntsb/LAX89FA307.md): Aero Commander 680FLP · Kailua-Kona, HI · Accident · 1 fatal · Field investigation · Final report · Sep 11, 1989 · N22LR · Destroyed
  > Inadequate maintenance, and operation by the pilot with known deficiencies in the aircraft. Factors related to the accident were: excessive wear in both engines, improper use of powerplant controls by the pilot, subsequent overtemperature/detonation in both…
- [NTSB FTW89LA160](https://openairdocs.org/ntsb/FTW89LA160.md): Cessna 210P · Bethany, OK · Accident · No injuries · Limited investigation · Final report · Sep 7, 1989 · N732XW · Substantial damage
  > A loose fuel line connection, due to inadequate maintenance, which resulted in fuel starvation. Factors related to the accident were: darkness and the obstructions (hay bale & approach light pole) in the emergency landing area.
- [NTSB MKC89LA193](https://openairdocs.org/ntsb/MKC89LA193.md): Piper PA-28-161 · Chanhassen, MN · Accident · No injuries · Limited investigation · Final report · Sep 5, 1989 · N8068C · Substantial damage
  > Engine assembly dowell pin sheared causing total powerplant failure and inadequate visual lookout by the driver of the ground vehicle.
- [NTSB SEA89LA162](https://openairdocs.org/ntsb/SEA89LA162.md): Cessna TU206G · Moore, ID · Accident · No injuries · Limited investigation · Final report · Sep 4, 1989 · N666HS · Substantial damage
  > Fuel exhaustion due to the pilot's inaccurate fuel consumption calculations. Contributing to the accident was a fence.
- [NTSB DEN89LA206](https://openairdocs.org/ntsb/DEN89LA206.md): Cessna T210M · Rangely, CO · Accident · No injuries · Limited investigation · Final report · Sep 4, 1989 · N761RP · Substantial damage
  > Forced landing in unsuitable terrain as a result of an engine crankshaft failure.
- [NTSB MIA89LA242](https://openairdocs.org/ntsb/MIA89LA242.md): Piper PA-24-250 · Perry, FL · Accident · Minor injuries · Limited investigation · Final report · Sep 3, 1989 · N4CD · Substantial damage
  > Fuel starvation due to wear and restricted movement of the carburetor float, which resulted in loss of engine power. Soft terrain in the emergency landing area contributed to overload failure of the nose gear.
- [NTSB SEA89FA157](https://openairdocs.org/ntsb/SEA89FA157.md): Beech C35 · Sandy, OR · Accident · 1 fatal · Field investigation · Final report · Aug 27, 1989 · N5916C · Substantial damage
  > The loss of engine power due to the separation of the bolt connecting the throttle rod to the carburetor throttle arm and an inadequate annual inspection performed 5 flight hours prior to the occurrence. Contributing factors were obstructions in and around…
- [NTSB LAX89LA288](https://openairdocs.org/ntsb/LAX89LA288.md): Ryan ST3KR · Hawthorne, CA · Accident · Minor injuries · Limited investigation · Final report · Aug 26, 1989 · N59466 · Substantial damage
  > Oil starvation of the engine due to the pilot's failure to turn the oil tank supply valve on prior to flight.
- [NTSB BFO89LA073](https://openairdocs.org/ntsb/BFO89LA073.md): Cessna 152 · Selbyville, DE · Accident · No injuries · Limited investigation · Final report · Aug 25, 1989 · N67803 · Substantial damage
  > Excessive wear of the number four exhaust lobe on the camshaft and poor condition (wear) of the number four exhaust tappet. The soybean crop in the emergency landing area was considered to be a factor.
- [NTSB MKC89LA184](https://openairdocs.org/ntsb/MKC89LA184.md): Dormoy TKD Bathtub · Carlisle, MN · Accident · Minor injuries · Limited investigation · Final report · Aug 21, 1989 · N812SS · Substantial damage
  > Failure of the mixture control cable and inadequate maintenance (repair) by the pilot. The terrain conditions were considered to be contributing factors.
- [NTSB DEN89FA197](https://openairdocs.org/ntsb/DEN89FA197.md): Aerospatiale AS350D · Carson City, NV · Accident · Serious injuries · Field investigation · Final report · Aug 21, 1989 · N3596G · Substantial damage
  > A failure of the gas generator turbine. Factors related to the accident were: the tailwind and the residential area in which the pilot was forced to land.
- [NTSB ANC89LA147](https://openairdocs.org/ntsb/ANC89LA147.md): Cessna 175 · Anchorage, AK · Accident · No injuries · Limited investigation · Final report · Aug 21, 1989 · N6929E · Substantial damage
  > Failure of the accessory drive (crankshaft) dowel pin and/or gear bolt, which resulted in the accessory drivegear becoming disconnected from the crankshaft.
- [NTSB LAX89LA281](https://openairdocs.org/ntsb/LAX89LA281.md): Aerospatiale AS350D · Volcano, HI · Accident · Serious injuries · Limited investigation · Final report · Aug 19, 1989 · N35970 · Destroyed
  > A catastrophic failure of the power turbine shaft and bearings. The failure was a result of oil starvation due to an excessively worn chip detector o-ring seal,inadequate maintenance and preflight. Contributing factor(s) was: the mountainous terrain.
- [NTSB MKC89LA182](https://openairdocs.org/ntsb/MKC89LA182.md): Cessna 182 · Russell, AR · Accident · Minor injuries · Limited investigation · Final report · Aug 15, 1989 · N3763D · Substantial damage
  > An engine failure, because of a valve which stuck in the open position, over terrain that was unsuitable for a forced landing.
- [NTSB DCA89IA066](https://openairdocs.org/ntsb/DCA89IA066.md): Mcdonnell Douglas DC-10-40 · Denver, CO · Incident · No injuries · Incident investigation · Final report · Aug 10, 1989 · N133JC · Minor damage
  > Fatigue failure and separation of a first-stage compressor fan blade.
- [NTSB MKC89LA176](https://openairdocs.org/ntsb/MKC89LA176.md): Bell 206-B2 · Sebeka, MN · Accident · No injuries · Limited investigation · Final report · Aug 4, 1989 · N96117 · Substantial damage
  > Power plant failure due to a fracture of the first stage turbine wheel, resulting in an uncontrolled autorotation.
- [NTSB CHI89DEM05](https://openairdocs.org/ntsb/CHI89DEM05.md): Gatzemeyer 88 ACRO-SPORT II · Escanaba, MI · Accident · Minor injuries · Final report · Aug 2, 1989 · N55NG · Substantial damage
  > A loose fuel line between the carburetor and engine which resulted in fuel starvation. A factor related to the accident was: no suitable terrain.
- [NTSB ATL89DKG05](https://openairdocs.org/ntsb/ATL89DKG05.md): Grumman G-164A · Dawson, GA · Accident · Minor injuries · Final report · Jul 31, 1989 · N9755 · Substantial damage
  > Failure of the number three cylinder head.
- [NTSB MKC89LA170](https://openairdocs.org/ntsb/MKC89LA170.md): Grumman G-164B · Portland, AR · Accident · No injuries · Limited investigation · Final report · Jul 28, 1989 · N8116K · Substantial damage
  > Engine failure due to failure of an engine cylinder.
- [NTSB LAX89LA247](https://openairdocs.org/ntsb/LAX89LA247.md): Piper PA-22 · Placerville, CA · Accident · Serious injuries · Limited investigation · Final report · Jul 26, 1989 · N5925D · Destroyed
  > The improper maintenance performed at the last overhaul which resulted in the failure of the #3 main bearing. Contributing to the accident was the lack of a suitable landing area for the emergency landing.
- [NTSB LAX89LA246](https://openairdocs.org/ntsb/LAX89LA246.md): Hughes 269C · Kalapana, HI · Accident · Serious injuries · Limited investigation · Final report · Jul 25, 1989 · N58344 · Substantial damage
  > The loss of engine power due to the failure of the engine exhaust valve in the no. 2 cylinder and the disregard of the Lycoming service bulletin by company maintenance personnel. Contributing to the accident was the high vegetation and trees located at the…

Next page: https://openairdocs.org/ntsb.md?occurrence=351&page=36

## 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."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&page=35

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