# NTSB investigations, 1990: 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 1 of 3 · 123 cases

## Latest cases

- [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.
- [NTSB DEN90LA193](https://openairdocs.org/ntsb/DEN90LA193.md): Cessna 310J · Colorado Spring, CO · Accident · Serious injuries · Limited investigation · Final report · Sep 24, 1990 · N3132L · Substantial damage
  > The loss of power on one engine due to excessive fuel pressure and the pilot's feathering of the wrong propeller. Factor(s) were: operation of aircraft with known deficiencies by pilot and operator.
- [NTSB ATL90LA172](https://openairdocs.org/ntsb/ATL90LA172.md): Cessna 172RG · Ozark, AL · Accident · No injuries · Limited investigation · Final report · Sep 17, 1990 · N6411V · Substantial damage
  > Inadequate engine overhaul procedures which allowed the installation of the engine plug without safety wire to hold it in place, and which resulted in oil starvation of the engine.
- [NTSB SEA90GA180](https://openairdocs.org/ntsb/SEA90GA180.md): Bell 204B · Keller, WA · Accident · 1 fatal · Final report · Sep 12, 1990 · CGKQH · Destroyed
  > The total loss of engine power due to turbine blade separation while the pilot was operating in the aircraft at a gross weight that exceeded performance specifications for existing meteorological conditions. Factors include the failure or inability to…
- [NTSB NYC90DEI02](https://openairdocs.org/ntsb/NYC90DEI02.md): Grumman AA5B · Beachwood, OH · Accident · Serious injuries · Final report · Sep 11, 1990 · N74242 · Destroyed
  > The engine failure due to an improper engine overhaul performed by unqualified persons. The unsuitable terrain was a factor.
- [NTSB FTW90DRA08](https://openairdocs.org/ntsb/FTW90DRA08.md): Blaine Laux Pitts S-1 · Edna, TX · Accident · No injuries · Final report · Sep 9, 1990 · N2MN · Substantial damage
  > A power loss due to failure of a connecting rod bolt. A factor was the soft terrain in which the forced landing was performed.
- [NTSB NYC90FA215](https://openairdocs.org/ntsb/NYC90FA215.md): Piper PA-32RT-300 · Montgomery, NY · Accident · 4 fatal · Field investigation · Final report · Sep 8, 1990 · N9327C · Destroyed
  > An inadequate preflight by the pilot which resulted in a power loss due to fuel exhaustion.
- [NTSB MIA90LA181](https://openairdocs.org/ntsb/MIA90LA181.md): Piper J3C-65 · Opa-Locka, FL · Accident · Minor injuries · Limited investigation · Final report · Sep 1, 1990 · N70659 · Substantial damage
  > Engine failure due to lack of oil supply to the number 3 cylinder connecting rod for undetermined reasons. This allowed the connecting rod end cap to separate through the case resulting in oil exhaustion.
- [NTSB NYC90LA208](https://openairdocs.org/ntsb/NYC90LA208.md): Piper J5 CUB · Douglas, MA · Accident · No injuries · Limited investigation · Final report · Aug 31, 1990 · N38428 · Substantial damage
  > A total engine failure when the #3 exhaust valve failed, causing internal damage to the engine. Factors related to the accident were: the pilot had to make a forced landing in unsuitable terrain.
- [NTSB LAX90DUG09](https://openairdocs.org/ntsb/LAX90DUG09.md): Miles Atwood 1 · Chino, CA · Accident · Minor injuries · Final report · Aug 31, 1990 · N225YY · Substantial damage
  > Loss of engine power due to a fuel line separation.
- [NTSB NYC90DFJ04](https://openairdocs.org/ntsb/NYC90DFJ04.md): Schweizer Grumman G-164A · Wayland, NY · Accident · No injuries · Final report · Aug 30, 1990 · N48395 · Substantial damage
  > A cracked engine cylinder assembly, which resulted in loss of engine power.
- [NTSB FTW90FA171](https://openairdocs.org/ntsb/FTW90FA171.md): Cessna 320 · Center, TX · Accident · 1 fatal · Field investigation · Final report · Aug 30, 1990 · N377S · Destroyed
  > The pilot's failure to maintain minimum control speed (VMC) and lack of qualification/training in multi-engine aircraft, which resulted in loss of aircraft control. A factor related to the accident was: failure of the left engine turbocharger, which resulted…
- [NTSB CHI90LA249](https://openairdocs.org/ntsb/CHI90LA249.md): Ryan PT-22A · Greenville, MI · Accident · No injuries · Limited investigation · Final report · Aug 29, 1990 · N5481L · Substantial damage
  > Separation of a loose cylinder assembly in flight, and unsuitable terrain encountered during the execution of a forced landing.
- [NTSB SEA90LA169](https://openairdocs.org/ntsb/SEA90LA169.md): Cessna T210N · Florence, OR · Accident · Minor injuries · Limited investigation · Final report · Aug 26, 1990 · N1911U · Substantial damage
  > The failure of an engine cylinder head. Collision with a log during the landing was a factor related to the accident.
- [NTSB NYC90FA199](https://openairdocs.org/ntsb/NYC90FA199.md): Piper PA-31T2 · Mattapan, MA · Accident · 3 fatal · Field investigation · Final report · Aug 24, 1990 · N85HB · Destroyed
  > The pilot's improper in-flight planning/decision, which resulted in his failure to maintain control of the aircraft. Factors related to the accident were: failure of the left fuel control unit, and the adverse weather conditions.
- [NTSB MIA90LA176](https://openairdocs.org/ntsb/MIA90LA176.md): Grumman 164-A · Dundee, MS · Accident · No injuries · Limited investigation · Final report · Aug 24, 1990 · N9650 · Substantial damage
  > Improper maintenance repair by an unknown person that initiated the engine failure and the forced landing.
- [NTSB DEN90LA173](https://openairdocs.org/ntsb/DEN90LA173.md): Cessna T-210-L · Edgewood, NM · Accident · No injuries · Limited investigation · Final report · Aug 23, 1990 · N5397V · Substantial damage
  > Engine failure due to a broken connecting rod. A factor was the rough uneven terrain available for the forced landing.
- [NTSB NYC90DHD03](https://openairdocs.org/ntsb/NYC90DHD03.md): Heinrichs Rand KR-2 · Barnegat, NJ · Accident · Minor injuries · Final report · Aug 17, 1990 · N63BH · Destroyed
  > The loss of engine power due to magneto failure.
- [NTSB ANC90LA147](https://openairdocs.org/ntsb/ANC90LA147.md): Aerospatiale AS-350-B · Juneau, AK · Accident · No injuries · Limited investigation · Final report · Aug 17, 1990 · N26492 · Substantial damage
  > Failure of the free turbine intermediate pinion driven gear and subsequent disintegration of the free turbine assembly.
- [NTSB LAX90LA289](https://openairdocs.org/ntsb/LAX90LA289.md): Cessna 172M · Goleta, CA · Accident · Minor injuries · Limited investigation · Final report · Aug 16, 1990 · N80981 · Destroyed
  > The loss of engine oil pressure for undetermined reasons.
- [NTSB DEN90DQA03](https://openairdocs.org/ntsb/DEN90DQA03.md): Piper PA-25-235 · Fabens, TX · Accident · No injuries · Final report · Aug 15, 1990 · N7178Z · Substantial damage
  > Engine failure due to shorting of the magneto's 'p' lead, and failure of the exhaust manifold.
- [NTSB FTW90DPG08](https://openairdocs.org/ntsb/FTW90DPG08.md): Air Tractor AT-301 · Corning, AR · Accident · Serious injuries · Final report · Aug 14, 1990 · N4433S · Substantial damage
  > Blockage of the carburetor Air intake by a collapsed Air induction hose due to improper maintenance by an unknown party.
- [NTSB LAX90LA284](https://openairdocs.org/ntsb/LAX90LA284.md): Mooney M20C · Lodi, CA · Accident · No injuries · Limited investigation · Final report · Aug 11, 1990 · N9236M · Destroyed
  > The pilot to continue his flight with a unresolved deficiency in the aircraft powerplant resulting in total failure of the powerplant.
- [NTSB SEA90LA159](https://openairdocs.org/ntsb/SEA90LA159.md): Cessna 182H · Wenatchee, WA · Accident · Serious injuries · Limited investigation · Final report · Aug 10, 1990 · N2473X · Substantial damage
  > Improper installation of the oil filter gasket by maintenance personnel resulting in loss of engine oil and seizure of the engine.
- [NTSB ATL90FA157](https://openairdocs.org/ntsb/ATL90FA157.md): Beech E18S · Greenwood, SC · Accident · 1 fatal · Field investigation · Final report · Aug 10, 1990 · N563W · Destroyed
  > The pilot's improper emergency procedure by shutting down the wrong engine, which resulted in a forced landing. Factors related to the accident were: failure of the number three intake valve in the right engine due to fatigue, and trees in the emergency…
- [NTSB MIA90FA166](https://openairdocs.org/ntsb/MIA90FA166.md): Rockwell 680-E · Titusville, FL · Accident · Serious injuries · Field investigation · Final report · Aug 5, 1990 · N599BB · Destroyed
  > The pilot's decision to continue the flight with a known unairworthy mechanical condition resulting in a subsequent loss of engine power and forced landing.
- [NTSB LAX90DXQ03](https://openairdocs.org/ntsb/LAX90DXQ03.md): Air Tractor AT-401 · Tule Lake, CA · Accident · Minor injuries · Final report · Aug 4, 1990 · N45116 · Substantial damage
  > An engine failure due to mechanical failure of the distributor.
- [NTSB ANC90FA134](https://openairdocs.org/ntsb/ANC90FA134.md): Helio Courier H-295 · 40 Se Bettles, AK · Accident · 3 fatal · Field investigation · Final report · Aug 4, 1990 · N6493V · Destroyed
  > The failure and separation of the #5 connecting rod bolt and cap which resulted in the rupture of the engine housing and subsequent engine fire due to oil spillage, and an inadequately mounted vertical fin/stabilator. A contributing factor was the inadequate…
- [NTSB ATL90IA154](https://openairdocs.org/ntsb/ATL90IA154.md): Dassault DA20F · Chamblee, GA · Incident · No injuries · Incident investigation · Final report · Aug 3, 1990 · N457F · Minor damage
  > The right fuel control unit malfunctioned and allowed the engine speed to decrease below idle speed (45%) which resulted in an engine fire. Factors in the incident were: the improper rigging of the fuel control unit during installation, and the flight crew's…

Next page: https://openairdocs.org/ntsb.md?year=1990&occurrence=351&page=2

## 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 year(c."eventDate") = 1990
  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" = 351)
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?occurrence=351&year=1990

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