# 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 12 of 58 · 2,878 cases

## Cases, newest first

- [NTSB DEN00IA075](https://openairdocs.org/ntsb/DEN00IA075.md): Beech A60 · Boulder, CO · Incident · No injuries · Incident investigation · Final report · Nov 9, 1999 · N457DA · Minor damage
  > The fatigue failure of the #6 cylinder connecting rod cap.
- [NTSB SEA00FA015](https://openairdocs.org/ntsb/SEA00FA015.md): Kaman K-1200 · Emida, ID · Accident · No injuries · Field investigation · Final report · Nov 4, 1999 · N164KA · Substantial damage
  > Failure of the splined engine adaptor as a result of torsional overstress. Factors include a worn freewheeling clutch assembly.
- [NTSB NYC00FA023](https://openairdocs.org/ntsb/NYC00FA023.md): Cessna T303 · Binghampton, NY · Accident · Serious injuries · Field investigation · Final report · Nov 1, 1999 · N511AR · Substantial damage
  > The pilot's improper in-flight decision to descend below the decision height without the runway environment in sight, and his failure to execute a missed approach. A factor in the accident was the failed crankshaft.
- [NTSB FTW00LA028](https://openairdocs.org/ntsb/FTW00LA028.md): Cessna 210K · Ponca City, OK · Accident · No injuries · Limited investigation · Final report · Oct 30, 1999 · N1162M · Substantial damage
  > Inadequate quality control by the manufacturer of the throttle control cable, which resulted in failure of the cable due to fatigue. A factor was the lack of suitable terrain for the forced landing.
- [NTSB LAX00LA010](https://openairdocs.org/ntsb/LAX00LA010.md): Mintz Vari EZE · Jean, NV · Accident · No injuries · Limited investigation · Final report · Oct 17, 1999 · N86KM · Substantial damage
  > The failure of the engine cylinder head due to detonation and subsequent over temperature for undetermined reasons.
- [NTSB FTW00LA009](https://openairdocs.org/ntsb/FTW00LA009.md): Cessna 150G · El Reno, OK · Accident · Minor injuries · Limited investigation · Final report · Oct 9, 1999 · N3603J · Substantial damage
  > The total loss of engine power resulting from a fatigue failure of the intake rocker arm for the #4 cylinder. A factor was the soft terrain encountered during the forced landing.
- [NTSB LAX00LA055](https://openairdocs.org/ntsb/LAX00LA055.md): Bell 206B · Apache Junction, AZ · Accident · No injuries · Limited investigation · Final report · Oct 7, 1999 · N6624N · Substantial damage
  > Oil starvation and seizure of the engines Nos. 6 and 7 bearings due to a clogged oil jet, which resulted in a total loss of engine power.
- [NTSB IAD99FA070](https://openairdocs.org/ntsb/IAD99FA070.md): Cessna 310Q · Salisbury, MD · Accident · Serious injuries · Field investigation · Final report · Sep 28, 1999 · N69945 · Substantial damage
  > The improper installation of the #2 cylinder that resulted in a fractured crankshaft and a total loss of engine power. Factors in the accident were the premature deployment of the landing gear and flaps by the pilot.
- [NTSB NYC99IA239](https://openairdocs.org/ntsb/NYC99IA239.md): Israel Aircraft Industries 1124 · Nantucket, MA · Incident · No injuries · Incident investigation · Final report · Sep 26, 1999 · N666K · Minor damage
  > A fractured turbine wheel.
- [NTSB LAX99LA314](https://openairdocs.org/ntsb/LAX99LA314.md): Cessna 177A · Big Bear City, CA · Accident · No injuries · Limited investigation · Final report · Sep 20, 1999 · N39AE · Substantial damage
  > A loss of engine power due to fuel system contamination, which resulted from the mechanic's failure to fully inspect and verify the serviceability of the fuel system before returning the aircraft to service for a maintenance ferry flight. The pilot's decision…
- [NTSB ATL99LA129](https://openairdocs.org/ntsb/ATL99LA129.md): Air Tractor AT-401 · Caledonia, MS · Accident · No injuries · Limited investigation · Final report · Sep 13, 1999 · N45205 · Substantial damage
  > The failure of the fuel control gear train due to oil contamination. A factor was Inadequate maintenance.
- [NTSB LAX99LA304](https://openairdocs.org/ntsb/LAX99LA304.md): Glover Teenie TWO · Chino, CA · Accident · Minor injuries · Limited investigation · Final report · Sep 12, 1999 · N925SG · Destroyed
  > The in-flight separation and loss of the carburetor fuel jet resulting from the pilot's improper installation of the component. Also causal was the pilot's failure to maintain an adequate airspeed margin following the loss of power, which resulted in an…
- [NTSB CHI99LA340](https://openairdocs.org/ntsb/CHI99LA340.md): Navion A · Utica, NE · Accident · No injuries · Limited investigation · Final report · Sep 9, 1999 · N4527K · Substantial damage
  > the failure of the fuel pump and the misjudged touchdown point by the pilot. A factor was the high vegetation.
- [NTSB DEN99LA160](https://openairdocs.org/ntsb/DEN99LA160.md): Bell UH-1H · Silverton, CO · Accident · Minor injuries · Limited investigation · Final report · Sep 6, 1999 · N4085L · Substantial damage
  > The total loss of engine power for undetermined reasons. A factor was the lack of suitable terrain for a forced landing.
- [NTSB CHI99LA319](https://openairdocs.org/ntsb/CHI99LA319.md): Van Grouw White Lightning · Greenfield, IN · Accident · No injuries · Limited investigation · Final report · Sep 6, 1999 · N25WL · Substantial damage
  > improper installation of the oil quick drain plug which resulted in oil exhaustion to the engine. A factor was the corn crop encountered during the forced landing.
- [NTSB LAX99LA295](https://openairdocs.org/ntsb/LAX99LA295.md): Cessna 150M · Menlo Park, CA · Accident · No injuries · Limited investigation · Final report · Sep 5, 1999 · N8135U · Substantial damage
  > The fatigue failure of the left muffler rear wall, which resulted in hot exhaust gasses being ported onto, and shorting, the magneto p-lead wires. The failure of maintenance personnel to detect the impending failure of the muffler during the recent engine…
- [NTSB NYC99LA219](https://openairdocs.org/ntsb/NYC99LA219.md): Piper PA-18-135 · Andover, NJ · Accident · Minor injuries · Limited investigation · Final report · Sep 3, 1999 · N8143E · Substantial damage
  > Fatigue failure of the crankshaft.
- [NTSB LAX99LA287](https://openairdocs.org/ntsb/LAX99LA287.md): Mooney M20J · Emigrant Gap, CA · Accident · Minor injuries · Limited investigation · Final report · Aug 28, 1999 · N4201S · Substantial damage
  > The fatigue failure and separation of the number three cylinder due to the cylinder overhaul facility's improper inspection and quality control processes.
- [NTSB MIA99LA234](https://openairdocs.org/ntsb/MIA99LA234.md): Bellanca 17-30A · Robbins, TN · Accident · Serious injuries · Limited investigation · Final report · Aug 23, 1999 · N42VB · Substantial damage
  > The total loss of engine power due to failure of maintenance personnel to assure that the thru bolt nut at the Nos. 2 and 3 cylinders was adequately torqued following removal and replacement of the No. 3 cylinder approximately 328 hours earlier. Also, the…
- [NTSB FTW99FA235](https://openairdocs.org/ntsb/FTW99FA235.md): Beech D-35 · Seminole, OK · Accident · 1 fatal · Field investigation · Final report · Aug 23, 1999 · N2934B · Destroyed
  > The loss of engine power caused by oil starvation, which resulted in the failure of the #6 cylinder connecting rod bolts. A factor was the pilot's performance of an evasive maneuver to avoid impacting buildings, trees, people on the ground, and power lines.
- [NTSB LAX99LA279](https://openairdocs.org/ntsb/LAX99LA279.md): Bellanca 7ECA · Livermore, CA · Accident · No injuries · Limited investigation · Final report · Aug 21, 1999 · N88408 · Substantial damage
  > The failure of the no. 3 cylinder exhaust valve due to the operator's failure to adhere to recommended overhaul periods set by the engine manufacturer. A factor in the accident was the operator's failure to comply with the manufacturer's mandatory service…
- [NTSB LAX99LA277](https://openairdocs.org/ntsb/LAX99LA277.md): Cessna T210L · Byron, CA · Accident · No injuries · Limited investigation · Final report · Aug 20, 1999 · N5378V · Substantial damage
  > The failure of the operator's maintenance personnel to properly torque the cylinder and engine case through bolts during the replacement of five cylinders, which led to the spinning of the No. 2 main bearing and the resultant oil starvation induced…
- [NTSB LAX99LA276](https://openairdocs.org/ntsb/LAX99LA276.md): Mooney M20E · Lakeport, CA · Accident · Serious injuries · Limited investigation · Final report · Aug 20, 1999 · N6022Q · Substantial damage
  > The failure of engine shop maintenance personnel to tighten the fuel line fitting during assembly of the engine, and failure of the installing maintenance personnel to detect and tighten the loose fitting during the engine installation and annual inspection.
- [NTSB LAX99FA270](https://openairdocs.org/ntsb/LAX99FA270.md): Beech J35 · Marysville, CA · Accident · Serious injuries · Field investigation · Final report · Aug 17, 1999 · N4932B · Destroyed
  > A loss of engine power due to improperly torque cylinder base nuts by maintenance personnel during a top overhaul.
- [NTSB ANC99LA114](https://openairdocs.org/ntsb/ANC99LA114.md): Cessna 206A · Cordova, AK · Accident · No injuries · Limited investigation · Final report · Aug 15, 1999 · N4605F · Substantial damage
  > A loss of engine power due to corrosion/blockage of the fuel flow divider vent hole. A factor was unsuitable terrain for a forced landing.
- [NTSB FTW99LA227](https://openairdocs.org/ntsb/FTW99LA227.md): Aeronca 11AC · Rockwall, TX · Accident · No injuries · Limited investigation · Final report · Aug 14, 1999 · N3184E · Substantial damage
  > The mechanic's improper machining of the crankshaft during a major overhaul, which resulted in a fatigue crack and subsequent failure of the crankshaft. A factor was the lack of suitable terrain for the forced landing.
- [NTSB SEA99FA138](https://openairdocs.org/ntsb/SEA99FA138.md): Beech H-35 · Swan Lake, MT · Accident · Serious injuries · Field investigation · Final report · Aug 10, 1999 · N7975D · Substantial damage
  > Detonation/pre-ignition due to use of improper grade and type of fuel (automotive) and the pilot-in-command's failure to use proper fuel specified by manufacturer's directives.
- [NTSB CHI99LA297](https://openairdocs.org/ntsb/CHI99LA297.md): Weatherly 201B · Oberlin, KS · Accident · No injuries · Limited investigation · Final report · Aug 8, 1999 · N197SK · Substantial damage
  > Engine failure due to an undertorqued carburetor fulcrum screw. Contributing factors were the muddy terrain and the low altitude of the aerial operation.
- [NTSB MIA99LA213](https://openairdocs.org/ntsb/MIA99LA213.md): William Jay Kinney Challenger II · Pahokee, FL · Accident · No injuries · Limited investigation · Final report · Aug 3, 1999 · N14131 · Substantial damage
  > failure of the engine to propeller drive belt for undetermined reasons, resulting in loss of engine power, and a forced landing to unsuitable terrain.
- [NTSB ANC99LA099](https://openairdocs.org/ntsb/ANC99LA099.md): Boeing 747-269B · Anchorage, AK · Accident · No injuries · Limited investigation · Final report · Jul 29, 1999 · N707CK · Substantial damage
  > The failure of a turbine blade, and subsequent penetration of the shroud (containment ring). A factor associated with the accident was the FAA's insufficient design standards/requirements addressed in an FAA Air Worthiness Directive, which called for a…
- [NTSB MIA99LA204](https://openairdocs.org/ntsb/MIA99LA204.md): Rockwell S-2R · Isola, MS · Accident · Serious injuries · Limited investigation · Final report · Jul 28, 1999 · N8482V · Destroyed
  > Failure of the No. 4 cylinder due to a leaking intake valve resulting in loss of engine power and collision with a ditch while making a forced landing on unsuitable terrain. Contributing to the accident was improper maintenance adjustment of the engine valves…
- [NTSB CHI99LA253](https://openairdocs.org/ntsb/CHI99LA253.md): Beech B36TC · Brookfield, MO · Accident · No injuries · Limited investigation · Final report · Jul 25, 1999 · N587DL · Substantial damage
  > the total mechanical failure of the engine crankshaft due to fatigue. A factor was the ditch encountered on landing.
- [NTSB ATL99LA112](https://openairdocs.org/ntsb/ATL99LA112.md): Beech 77 · Dawson, GA · Accident · No injuries · Limited investigation · Final report · Jul 23, 1999 · N38482 · Substantial damage
  > The loss of engine power due to fuel starvation that resulted from a blocked fuel line check valve.
- [NTSB ATL99LA109](https://openairdocs.org/ntsb/ATL99LA109.md): Blackburn John D. Jr. Bushby M II · Daytona Beach, FL · Accident · 1 fatal · Limited investigation · Final report · Jul 17, 1999 · N102JB · Substantial damage
  > The pilot's failure to securely reconnect the distributor coil wire during routine maintenance. Factors were the unsuitable terrain and trees.
- [NTSB MIA99LA196](https://openairdocs.org/ntsb/MIA99LA196.md): Piper PA-28R-200 · Boca Raton, FL · Accident · No injuries · Limited investigation · Final report · Jul 14, 1999 · N56706 · Substantial damage
  > a total loss of engine power due to a failed oil pump impeller which resulted in a forced landing and a subsequent hard landing on a golf course.
- [NTSB NYC99LA172](https://openairdocs.org/ntsb/NYC99LA172.md): Piper PA-22-108 · Isle Of Wight, VA · Accident · No injuries · Limited investigation · Final report · Jul 11, 1999 · N4595Z · Substantial damage
  > The improper visual inspection of overhauled engine components by maintenance personnel.
- [NTSB LAX99LA248](https://openairdocs.org/ntsb/LAX99LA248.md): Piper PA-24-180 · San Luis Obispo, CA · Accident · No injuries · Limited investigation · Final report · Jul 10, 1999 · N6597P · Substantial damage
  > The failure/separation of the crankshaft idler gear and the fatigue failure and subsequent separation of the crankshaft dowel pin due to the improper static and dynamic balance of the propeller by maintenance personnel.
- [NTSB LAX99LA234](https://openairdocs.org/ntsb/LAX99LA234.md): Piper PA-28-181 · San Luis Obispo, CA · Accident · No injuries · Limited investigation · Final report · Jul 6, 1999 · N3477Q · Substantial damage
  > A loss of engine power due to contamination of the induction system and the carburetor throat. Factors in the accident were a prior undetected carburetor fire, which caused a deterioration in the air duct material.
- [NTSB CHI99LA226](https://openairdocs.org/ntsb/CHI99LA226.md): Cessna 177RG · Weldon Springs, MO · Accident · No injuries · Limited investigation · Final report · Jul 6, 1999 · N1937Q · Substantial damage
  > the loss of engine oil for undetermined reasons. A factor was the trees.
- [NTSB LAX99LA233](https://openairdocs.org/ntsb/LAX99LA233.md): Ercoupe E · Winnemucca, NV · Accident · No injuries · Limited investigation · Final report · Jun 29, 1999 · N3640H · Substantial damage
  > An improperly installed and maintained float needle in the carburetor, which would not seat sufficiently to stop fuel flow and caused the engine to run excessively rich, resulting in a complete loss of engine power.
- [NTSB LAX99LA236](https://openairdocs.org/ntsb/LAX99LA236.md): Miller Rotorway Exec 162F · Pacoima, CA · Accident · Serious injuries · Limited investigation · Final report · Jun 25, 1999 · N112WM · Substantial damage
  > The pilot's improper valve adjustments and failure to follow the manufacturer's instructions, which resulted in a loose number 3 cylinder rocker arm and a loss of engine power.
- [NTSB LAX99IA230](https://openairdocs.org/ntsb/LAX99IA230.md): Boeing DC-9-82 · San Diego, CA · Incident · No injuries · Incident investigation · Final report · Jun 25, 1999 · N450AA · No damage
  > failure of the number three bearing. The resulting oil leak from the bearing led to coke/carbon buildup, which resulted in chafing of the turbine's low-pressure compressor drive shaft on the rear compressor seal tube and subsequent fracture of the drive shaft.
- [NTSB NYC99LA153](https://openairdocs.org/ntsb/NYC99LA153.md): Cessna 182Q · Rising Sun, MD · Accident · Serious injuries · Limited investigation · Final report · Jun 21, 1999 · N937FB · Destroyed
  > The failure of the connecting rod end bolts, due to an overtemperature condition.
- [NTSB CHI99LA183](https://openairdocs.org/ntsb/CHI99LA183.md): Grumman American G-164B · Goodland, KS · Accident · No injuries · Limited investigation · Final report · Jun 11, 1999 · N6515K · Substantial damage
  > the fracture of the rocker arm bolt. Contributing factors were the pilot's low altitude and the crops.
- [NTSB MIA99LA164](https://openairdocs.org/ntsb/MIA99LA164.md): Cessna 177RG · Timmonsville, SC · Accident · Minor injuries · Limited investigation · Final report · Jun 6, 1999 · N1982Q · Substantial damage
  > The loss of engine power due to the improper installation and in-flight separation of an engine cylinder.
- [NTSB FTW99LA155](https://openairdocs.org/ntsb/FTW99LA155.md): Bell 206B · Venice, LA · Accident · No injuries · Limited investigation · Final report · Jun 1, 1999 · N7131U · Substantial damage
  > The pilot's improper touchdown procedure, resulting in a main rotor blade contacting the tailboom. Factors were the soft and wet terrain conditions, and the loss of engine power due to the spiral fatigue failure of the gas generator turbine shafting due to…
- [NTSB LAX99LA202](https://openairdocs.org/ntsb/LAX99LA202.md): Beech D-45 · Lake Berryessa, CA · Accident · No injuries · Limited investigation · Final report · May 29, 1999 · N20869 · Substantial damage
  > Loss of engine power due to a loose adjustment nut on the engine driven fuel pump that allowed for a decrease in fuel flow and fuel pressure, and the subsequent failure of the electric fuel boost pump due to loose bearings decreasing fuel flow and fuel…
- [NTSB LAX99LA201](https://openairdocs.org/ntsb/LAX99LA201.md): Piper PA-32R-300 · Valley Springs, CA · Accident · No injuries · Limited investigation · Final report · May 28, 1999 · N38908 · Substantial damage
  > The fatigue failure and separation of the No. 6 connecting rod end cap, which led to a catastrophic failure of the engine. The fatigue crack initiation was due to galling on the rod end cap, which was most likely caused by an undetermined factory…
- [NTSB NYC99LA112](https://openairdocs.org/ntsb/NYC99LA112.md): Abrams Titan Tornado · Monroe, CT · Accident · Serious injuries · Limited investigation · Final report · May 16, 1999 · N194PA · Substantial damage
  > The failure of the magneto (mag) cylinder bearing resulting in a total loss of power and subsequent forced landing.
- [NTSB ATL99LA087](https://openairdocs.org/ntsb/ATL99LA087.md): Cessna T188C · Bruce, MS · Accident · No injuries · Limited investigation · Final report · May 14, 1999 · N1994J · Substantial damage
  > The loss of lubrication to the number 2 connecting rod due to the shifted bearing that resulted in the total loss of engine power.

Next page: https://openairdocs.org/ntsb.md?occurrence=351&page=13

## 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=12

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