# 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 32 of 58 · 2,878 cases

## Cases, newest first

- [NTSB DEN91FA061](https://openairdocs.org/ntsb/DEN91FA061.md): Cessna T210M · Littleton, CO · Accident · Serious injuries · Field investigation · Final report · Apr 19, 1991 · N761CM · Destroyed
  > Improper reassembly of the overhauled turbocharger by maintenance personnel, and the pilot's improper use of the mixture control and boost pump. Factors related to the accident were: the adverse weather conditions and unsuitable terrain in the emergency…
- [NTSB SEA91IA081](https://openairdocs.org/ntsb/SEA91IA081.md): Boeing 737-222 · Seattle, WA · Incident · Minor injuries · Incident investigation · Final report · Apr 10, 1991 · N9003U · Minor damage
  > Turbine blade failure from fatigue. Factors to the incident were inoperative engine fire extinguisher, inadequate service of aircraft and delayed deployment of emergency slide.
- [NTSB CHI91LA129](https://openairdocs.org/ntsb/CHI91LA129.md): Cessna 172G · Griffith, IN · Accident · Serious injuries · Limited investigation · Final report · Apr 10, 1991 · N1375F · Substantial damage
  > Contaminated fuel in the carburetor, and inadequate inspection/maintenance of the airplane by the pilot in command.
- [NTSB ATL91FA077](https://openairdocs.org/ntsb/ATL91FA077.md): Cessna 172D · Mocksville, NC · Accident · 1 fatal · Field investigation · Final report · Apr 7, 1991 · N2936U · Substantial damage
  > The loss of engine power due to open circuits in the ignition wiring harness, and the pilot's failure to maintain flying airspeed during the forced landing attempt. Factors in this accident were the dark night lighting conditions at the time of the accident.
- [NTSB LAX91LA157](https://openairdocs.org/ntsb/LAX91LA157.md): Cessna 172N · Stockton, CA · Accident · No injuries · Limited investigation · Final report · Apr 5, 1991 · N733MQ · Substantial damage
  > The installation by maintenance personnel of an incorrect gasket that resulted in the loss of the engine magneto.
- [NTSB CHI91LA121](https://openairdocs.org/ntsb/CHI91LA121.md): Piper PA-28-161 · Schaumburg, IL · Accident · Minor injuries · Limited investigation · Final report · Apr 5, 1991 · N2366W · Substantial damage
  > The mechanic's not understanding the identifying marks on the replacement part. A factor in the accident was that the mechanic was provided with an improper part.
- [NTSB MIA91LA115](https://openairdocs.org/ntsb/MIA91LA115.md): Piper PA-28-181 · Vero Beach, FL · Accident · No injuries · Limited investigation · Final report · Apr 3, 1991 · N8156E · Substantial damage
  > Failure of maintenance personnel to follow directions of a service bulletin during the major overhaul of the engine. This resulted in failure to detect a foreign object under the crankshaft gear. As a result the crankshaft gear became loose and quit turning…
- [NTSB LAX91LA150](https://openairdocs.org/ntsb/LAX91LA150.md): Beech A35 · Hilt, CA · Accident · No injuries · Limited investigation · Final report · Mar 30, 1991 · N584B · Substantial damage
  > The application of a sealant instead of a lubricant to the internal 'o' rings seals in the fuel selector by maintenance personnel. Factors contributing to the accident were the pilot's inability to select a fuel source and fuel starvation that resulted in an…
- [NTSB SEA91FA076](https://openairdocs.org/ntsb/SEA91FA076.md): Piper PA-24-250 · Chehalis, WA · Accident · 1 fatal · Field investigation · Final report · Mar 28, 1991 · N6044P · Destroyed
  > A loss of engine power due to an improper overhaul.
- [NTSB MIA91LA109](https://openairdocs.org/ntsb/MIA91LA109.md): Cessna 150M · Crystal River, FL · Accident · Minor injuries · Limited investigation · Final report · Mar 25, 1991 · N704SN · Substantial damage
  > The loss of power because of oil pump failure due to contamination. Unknown maintenance personnel performed a component change without using appropriate publications and procedures and failed to clean contaminants from the engine.
- [NTSB NYC91LA092](https://openairdocs.org/ntsb/NYC91LA092.md): Piper PA-23-160 · Westbrook, ME · Accident · No injuries · Limited investigation · Final report · Mar 23, 1991 · N4155P · Substantial damage
  > Improper emergency procedures by the pilot. Factors related to the accident were: the pilot's lack of experience and flight time in type of airplane, the pilots decision to take an airplane with a known mechanical defect, a leaky accelerator pump seal on the…
- [NTSB FTW91LA054](https://openairdocs.org/ntsb/FTW91LA054.md): Cessna 210 · New Orleans, LA · Accident · No injuries · Limited investigation · Final report · Mar 20, 1991 · N219CG · Substantial damage
  > The power loss due to fatigue induced crankshaft failure. Factors were the pilot's continued operation with known mechanical malfunction and the lack of suitable terrain for the forced landing.
- [NTSB LAX91LA137](https://openairdocs.org/ntsb/LAX91LA137.md): Sikorsky H-19/S55 · Richvale, CA · Accident · No injuries · Limited investigation · Final report · Mar 19, 1991 · N9894 · Substantial damage
  > The failure of the engine's number 4 cylinder intake valve keeper. Trees under the helicopter at the time of the loss of engine power were factors in the accident.
- [NTSB FTW91DRD03](https://openairdocs.org/ntsb/FTW91DRD03.md): Grumman G-164A · Bonita, LA · Accident · No injuries · Final report · Mar 17, 1991 · N9685 · Substantial damage
  > A power loss due to a cracked cylinder. A factor was the soft terrain in which the forced landing was performed.
- [NTSB LAX91LA126](https://openairdocs.org/ntsb/LAX91LA126.md): Cessna 152 · Tucson, AZ · Accident · No injuries · Limited investigation · Final report · Mar 8, 1991 · N69116 · Substantial damage
  > Engine failure due to oil starvation caused by a rotation of the main bearing. A factor in the accident was the failure of the operator maintenance personnel to accomplish an engine overhaul within the interval specified by the manufacturer.
- [NTSB FTW91FA045](https://openairdocs.org/ntsb/FTW91FA045.md): Piper PA-60-600 · Fort Chaffee, AR · Accident · 1 fatal · Field investigation · Final report · Mar 1, 1991 · N7488S · Destroyed
  > The pilot's operation of the aircraft with known deficiencies in equipment. Factors were the improper overhaul of the engines by other maintenance personnel resulting in oil loss, deteriorated engine performance, and unsuitable terrain.
- [NTSB LAX91LA121](https://openairdocs.org/ntsb/LAX91LA121.md): North American T-28B · Mesa, AZ · Accident · Serious injuries · Limited investigation · Final report · Feb 25, 1991 · N138WW · Substantial damage
  > 1) The failure of the airplane's engine upper crankcase oil breather line; 2) total loss of engine power caused by a lack of lubricating oil. A factor in this accident was the pilot inadvertantly stalling the aircraft to avoid a collision with a wire.
- [NTSB LAX91LA109](https://openairdocs.org/ntsb/LAX91LA109.md): Rockwell S2R-600 · Corcoran, CA · Accident · No injuries · Limited investigation · Final report · Feb 18, 1991 · N4930X · Substantial damage
  > Failure of the aircraft engine's fuel pump valve assembly bypass.
- [NTSB DEN91IA046](https://openairdocs.org/ntsb/DEN91IA046.md): Avions Marcel Dassault Mistert Falcon 900 · Eagle, CO · Incident · No injuries · Incident investigation · Final report · Feb 18, 1991 · N90EW · Minor damage
  > Improper engine maintenance by maintenance personnel, improper assembly of the combustion assembly transition liner, and the rupture of the first stage lp turbine wheel.
- [NTSB ATL91LA059](https://openairdocs.org/ntsb/ATL91LA059.md): Air Tractor AT-301 · Pavo, GA · Accident · No injuries · Limited investigation · Final report · Feb 18, 1991 · N8770S · Substantial damage
  > The failure of the no. 2 exhaust valve and cylinder head, which resulted in a total loss of engine power. A factor in the accident was the collision with a road sign during the forced landing.
- [NTSB LAX91LA096](https://openairdocs.org/ntsb/LAX91LA096.md): Piper PA22-160 · Bagdad, AZ · Accident · Serious injuries · Limited investigation · Final report · Feb 11, 1991 · N3064Z · Substantial damage
  > That the pilot misjudged the landing flare altitude. Contributing to this accident was the failure of the exhaust valve and the pilot's anxiety during the emergency.
- [NTSB FTW91FA036](https://openairdocs.org/ntsb/FTW91FA036.md): Cessna 182K · Mansfield, TX · Accident · Minor injuries · Field investigation · Final report · Feb 11, 1991 · N2486Q · Destroyed
  > The failure of the number two cylinder piston due to inadequate maintenance.
- [NTSB DEN91LA041](https://openairdocs.org/ntsb/DEN91LA041.md): Beech P-35 · Durango, CO · Accident · Minor injuries · Limited investigation · Final report · Feb 10, 1991 · N9653Y · Substantial damage
  > Engine failure due to oil starvation caused by turbocharger oil feed line failure and subsequent loss of lubricating oil to the engine.
- [NTSB LAX91LA095](https://openairdocs.org/ntsb/LAX91LA095.md): Schweizer G-164B · Yuba City, CA · Accident · No injuries · Limited investigation · Final report · Feb 9, 1991 · N3633B · Substantial damage
  > The failure of the no. 5 cylinder due to fatigue. Contributing to this accident was the wet terrain and crops.
- [NTSB CHI91LA094](https://openairdocs.org/ntsb/CHI91LA094.md): Cessna R172K · Herington, KS · Accident · No injuries · Limited investigation · Final report · Feb 9, 1991 · N758ML · Substantial damage
  > Loss of engine power due to failure of a connecting rod bolt. A factor related to the accident was: the soft, unsuitable terrain.
- [NTSB BFO91LA027](https://openairdocs.org/ntsb/BFO91LA027.md): Piper PA-22-150 · Wise, VA · Accident · No injuries · Limited investigation · Final report · Feb 2, 1991 · N7816D · Substantial damage
  > The loss of engine power brought on by a failure of the number three clyinder exhaust valve. Contributing to the accident was unsuitable terrain on the emergency landing field.
- [NTSB ANC91LA022](https://openairdocs.org/ntsb/ANC91LA022.md): De Havilland DHC-3 · Nome, AK · Accident · Serious injuries · Limited investigation · Final report · Jan 28, 1991 · N212NY · Substantial damage
  > The failure of the 1, 2, 6, 7, 8 and 9 piston linkrods which were broken at the master rod attach end. Contributing to the accident was the rough, uneven terrain.
- [NTSB NYC91LA059](https://openairdocs.org/ntsb/NYC91LA059.md): Cessna 172P · Charleston, WV · Accident · No injuries · Limited investigation · Final report · Jan 15, 1991 · N62960 · Substantial damage
  > Total loss of engine power in cruise flight due to failure of the accessory drive gear dowel pin resulting in a forced landing over unsuitable terrain and subsequent nose over on landing roll. A factor related to the accident was the improper procedure used…
- [NTSB DEN91IA028](https://openairdocs.org/ntsb/DEN91IA028.md): Boeing 727-22 · Denver, CO · Incident · No injuries · Incident investigation · Final report · Dec 20, 1990 · N40486 · Minor damage
  > Failure of an engine bearing.
- [NTSB DEN91IA026](https://openairdocs.org/ntsb/DEN91IA026.md): British Aerospace BAE 146-200 · Denver, CO · Incident · No injuries · Incident investigation · Final report · Dec 15, 1990 · N609AW · Minor damage
  > The catastrophic failure of the no.12 blade on the 4th stage turbine wheel, and failure of company maintenance personnel to identify the preexisting crack during maintenance inspection.
- [NTSB ATL91LA030](https://openairdocs.org/ntsb/ATL91LA030.md): Beech S35 · N. Myrtle Beach, SC · Accident · No injuries · Limited investigation · Final report · Dec 11, 1990 · N53G · Substantial damage
  > The pilot's failure to ensure that the engine oil filter was properly installed prior to flight, resulting in engine oil loss and eventual failure of the engine.
- [NTSB SEA91LA031](https://openairdocs.org/ntsb/SEA91LA031.md): Beech 3NM · Bozeman, MT · Accident · No injuries · Limited investigation · Final report · Dec 9, 1990 · N9159B · Substantial damage
  > The failure of the right engine master rod.
- [NTSB LAX91LA048](https://openairdocs.org/ntsb/LAX91LA048.md): Cessna T-206 · Tonto Basin, AZ · Accident · No injuries · Limited investigation · Final report · Dec 2, 1990 · N8655Z · Substantial damage
  > The failure of a connecting rod in the engine.
- [NTSB ATL91IA024](https://openairdocs.org/ntsb/ATL91IA024.md): Cessna S550 · Columbus, GA · Incident · No injuries · Incident investigation · Final report · Dec 1, 1990 · N185SF · Minor damage
  > A fatigue failure of a spot weld on the gas generator case, which resulted in an engine explosion.
- [NTSB LAX91LA035](https://openairdocs.org/ntsb/LAX91LA035.md): Cessna 210M · Fallbrook, CA · Accident · Serious injuries · Limited investigation · Final report · Nov 20, 1990 · N9139M · Destroyed
  > The failure of the number 5 cylinder piston connecting rod due to bending and subsequent fatigue fracture. Contributing to the accident was the improper starting procedure accomplished by an unidentified person which resulted in excessive fuel in the cylinder…
- [NTSB ATL91LA019](https://openairdocs.org/ntsb/ATL91LA019.md): Piper PA-28-140 · Winston-Salem, NC · Accident · Minor injuries · Limited investigation · Final report · Nov 20, 1990 · N8774N · Substantial damage
  > Failure of a piston pin plug which resulted in a total loss of power. Factors in the accident were an inadequate engine overhaul which led to premature engine wear, and the pilot's failure to obtain proper maintenance following a loss of engine oil pressure.
- [NTSB DEN91IA019](https://openairdocs.org/ntsb/DEN91IA019.md): Beech J-35 · Brighton, CO · Incident · No injuries · Incident investigation · Final report · Nov 18, 1990 · N8263D · Minor damage
  > The failure of the engine fuel feed line resulting in a complete loss of power. Contributing to the incident was improper installation of the fuel feed transducer.
- [NTSB BFO91LA014](https://openairdocs.org/ntsb/BFO91LA014.md): Hughes 269C · Louisville, KY · Accident · No injuries · Limited investigation · Final report · Nov 15, 1990 · N9280F · Substantial damage
  > Fatigue failure of the number 1 cylinder connecting rod.
- [NTSB NYC91LA020](https://openairdocs.org/ntsb/NYC91LA020.md): Dassault-Breguet Falcon 50 · Parkersburg, WV · Accident · No injuries · Limited investigation · Final report · Oct 28, 1990 · N52DC · Substantial damage
  > Catastrophic failure of the left engine fan disc due to low cycle fatigue.
- [NTSB LAX91LA017](https://openairdocs.org/ntsb/LAX91LA017.md): Beech F33A · Mobile, AZ · Accident · Minor injuries · Limited investigation · Final report · Oct 24, 1990 · N1568A · Substantial damage
  > A fuel flow interruption due to a fuel system seal fragment becoming lodged in the fuel control unit and the manufacturer's inadequate quality control procedures.
- [NTSB ATL91LA007](https://openairdocs.org/ntsb/ATL91LA007.md): Piper PA-24-250 · Savannah, GA · Accident · No injuries · Limited investigation · Final report · Oct 21, 1990 · N5506P · Substantial damage
  > Total failure of a connecting rod cap bolt which resulted in a total loss of power.
- [NTSB NYC91LA013](https://openairdocs.org/ntsb/NYC91LA013.md): Porterfield Porterfield FP65 · Moravia, NY · Accident · Minor injuries · Limited investigation · Final report · Oct 16, 1990 · N37859 · Destroyed
  > Power loss after takeoff due to a partially clogged fuel line between the fuel tank and the gascolator. Contributing to the accident was unsuitable terrain under the airplane when power loss occurred.
- [NTSB SEA91LA006](https://openairdocs.org/ntsb/SEA91LA006.md): Mooney M20F · Casper, WY · Accident · No injuries · Limited investigation · Final report · Oct 13, 1990 · N9732M · Substantial damage
  > The loss of engine power due to fatigue fracture of the number 2 cylinder connecting rod. Factors related to the accident were: rough and uneven terrain at the accident site and the lack of suitable terrain for forced landing.
- [NTSB LAX91FA005](https://openairdocs.org/ntsb/LAX91FA005.md): Piper PA-28-235 · Redlands, CA · Accident · 2 fatal · Field investigation · Final report · Oct 10, 1990 · N8876W · Destroyed
  > A total loss of engine power due to fuel starvation as a result of a fuel system leak of an undetermined origin.
- [NTSB DEN91LA006](https://openairdocs.org/ntsb/DEN91LA006.md): Cessna T210M · Englewood, CO · Accident · No injuries · Limited investigation · Final report · Oct 10, 1990 · N565RA · Substantial damage
  > Engine failiure resulting from maintenance discrepancies.
- [NTSB FTW91LA004](https://openairdocs.org/ntsb/FTW91LA004.md): Waco RNF · Lampasas, TX · Accident · Minor injuries · Limited investigation · Final report · Oct 6, 1990 · N11270 · Substantial damage
  > The failure of a cylinder intake valve spring.
- [NTSB LAX90LA338](https://openairdocs.org/ntsb/LAX90LA338.md): Mooney M-20-M · Flagstaff, AZ · Accident · Serious injuries · Limited investigation · Final report · Sep 29, 1990 · N9161D · Destroyed
  > Engine failure due to a ruptured fuel pump diaphragm. A factor in the accident was the unsuitable nature of the terrain to make a forced landing.
- [NTSB FTW90DPA09](https://openairdocs.org/ntsb/FTW90DPA09.md): Moffitt, William A. Windryder · Mesquite, TX · Accident · Minor injuries · Final report · Sep 29, 1990 · N532BM · Substantial damage
  > The power loss due to failure of the ignition system due to improper installation by the operator. A factor was the wire struck during the emerency descent.
- [NTSB ATL90LA186](https://openairdocs.org/ntsb/ATL90LA186.md): Cessna 172N · Stokesdale, NC · Accident · No injuries · Limited investigation · Final report · Sep 29, 1990 · N1904V · Substantial damage
  > The failure of the engine driven oil pump which resulted in oil starvation to the engine. Factors were: the faa's failure to provide sufficient standards for airworthiness directive compliance, and the rough terrain.
- [NTSB MIA90LA187](https://openairdocs.org/ntsb/MIA90LA187.md): Republic RC-3 · Mulberry, FL · Accident · Serious injuries · Limited investigation · Final report · Sep 24, 1990 · N6291K · Substantial damage
  > An engine failure which required an emergency landing off airport.

Next page: https://openairdocs.org/ntsb.md?occurrence=351&page=33

## 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=32

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