# 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 23 of 58 · 2,878 cases

## Cases, newest first

- [NTSB FTW94FA295](https://openairdocs.org/ntsb/FTW94FA295.md): Cessna 175 · Oklahoma City, OK · Accident · 2 fatal · Field investigation · Final report · Sep 10, 1994 · N7554M · Substantial damage
  > Improper maintenance of the engine by unknown person(s), the installation of unapproved parts, and subsequent bearing seizure. The lack of suitable terrain in the forced landing area was a related factor.
- [NTSB CHI94LA315](https://openairdocs.org/ntsb/CHI94LA315.md): Mooney M20F · Hanston, KS · Accident · Minor injuries · Limited investigation · Final report · Sep 8, 1994 · N9310V · Destroyed
  > The failure of the number two connecting rod. Factors in the accident were the fouled windshield utility wires, the road sign, and the telephone pole.
- [NTSB SEA94LA235](https://openairdocs.org/ntsb/SEA94LA235.md): Cessna 172M · Coolin, ID · Accident · Minor injuries · Limited investigation · Final report · Sep 7, 1994 · N61838 · Substantial damage
  > The failure of the engine manufacturer to properly remanufacture and adequately inspect the no. 1 rocker arm prior to its installation on the engine. This resulted in fatigue cracking of the rocker arm and a subsequent loss of engine power.
- [NTSB NYC94LA170](https://openairdocs.org/ntsb/NYC94LA170.md): Eagle DW-1 · Houlton, ME · Accident · No injuries · Limited investigation · Final report · Sep 7, 1994 · N8810Z · Substantial damage
  > Inadequate maintenance inspection which failed to detect internal corrosion of the magneto, resulting in ignition arcing and the loss of engine power.
- [NTSB CHI94LA314](https://openairdocs.org/ntsb/CHI94LA314.md): Cessna 188B · Oakdale, IL · Accident · No injuries · Limited investigation · Final report · Sep 7, 1994 · N731SV · Substantial damage
  > misalignment of the number one connecting rod during major overhaul. Factors were the subsequent scoring and fatigue failure of the crankshaft.
- [NTSB FTW94LA281](https://openairdocs.org/ntsb/FTW94LA281.md): WSK PZL Mielec M-18A Dromader · Wheatley, AR · Accident · No injuries · Limited investigation · Final report · Aug 27, 1994 · N148RA · Substantial damage
  > Total loss of engine power due to a cracked cylinder. A factor was the lack of suitable terrain for the forced landing.
- [NTSB CHI94LA302](https://openairdocs.org/ntsb/CHI94LA302.md): Frith Challenger II · Fairfield, IA · Accident · Minor injuries · Limited investigation · Final report · Aug 27, 1994 · N7051P · Substantial damage
  > the total failure and separation of the propeller system drive belt. Obstacles (powerlines and pole) were a factor in the accident.
- [NTSB ATL94LA165](https://openairdocs.org/ntsb/ATL94LA165.md): Cessna 150J · Spruce Pine, NC · Accident · Minor injuries · Limited investigation · Final report · Aug 26, 1994 · N50446 · Substantial damage
  > A seized cylinder exhaust valve because of deposits on the valve and an oversized valve stem. The lack of suitable terrain for a forced landing was a factor.
- [NTSB BFO94LA143](https://openairdocs.org/ntsb/BFO94LA143.md): Cessna 172M · Vestal, NY · Accident · No injuries · Limited investigation · Final report · Aug 23, 1994 · N61774 · Substantial damage
  > Loss of engine power during an aborted landing due to the throttle cable separating from the carburetor.
- [NTSB ATL94LA159](https://openairdocs.org/ntsb/ATL94LA159.md): Piper PA-25 · Columbia, NC · Accident · Minor injuries · Limited investigation · Final report · Aug 21, 1994 · N8819L · Substantial damage
  > The failure of the aircraft carburetor that resulted in a total loss of engine power.
- [NTSB ATL94LA161](https://openairdocs.org/ntsb/ATL94LA161.md): Cessna 207 · Nags Head, NC · Accident · No injuries · Limited investigation · Final report · Aug 20, 1994 · N1670U · Substantial damage
  > The failure of the mixture control cable which resulted in a loss of engine power.
- [NTSB LAX94LA327](https://openairdocs.org/ntsb/LAX94LA327.md): Aero Commander S2R · Firebaugh, CA · Accident · No injuries · Limited investigation · Final report · Aug 19, 1994 · N8843Q · Substantial damage
  > the loss of engine power due to the failure of the number 2 cylinder head. A factor was the dark night conditions which inhibited the pilot's ability to visually detect ground obstructions in the landing area.
- [NTSB BFO94FA140](https://openairdocs.org/ntsb/BFO94FA140.md): Piper PA-32R-300 · Roanoke, VA · Accident · 2 fatal · Field investigation · Final report · Aug 19, 1994 · N4316X · Destroyed
  > The disconnection of the throttle cable from the throttle arm on the fuel injector servo.
- [NTSB ATL94LA158](https://openairdocs.org/ntsb/ATL94LA158.md): Cessna 172XP · Clarksburg, TN · Accident · No injuries · Limited investigation · Final report · Aug 19, 1994 · N9797V · Substantial damage
  > The failure of the alternator drive coupling, and debris from the failed coupling that lodged in the engine oil pump, resulting in a sheared oil pump drive shaft. The engine subsequently failed because of oil starvation.
- [NTSB FTW94FA273](https://openairdocs.org/ntsb/FTW94FA273.md): Cessna 310 · Pryor, OK · Accident · 3 fatal · Field investigation · Final report · Aug 18, 1994 · N5319A · Destroyed
  > Failure of the pilot to maintain minimum control airspeed (VMC), which resulted in a loss of aircraft control. Factors related to the accident were: an oil leak from a fatigue crack in the engine crankcase, and inadequate maintenance.
- [NTSB CHI94LA286](https://openairdocs.org/ntsb/CHI94LA286.md): Snow S2C · Leslie, MO · Accident · No injuries · Limited investigation · Final report · Aug 17, 1994 · N9498R · Substantial damage
  > the separation of the cylinder and subsequent oil leak. A factor to the accident was the pilot's restricted visual outlook.
- [NTSB ANC94FA106](https://openairdocs.org/ntsb/ANC94FA106.md): Piper PA-32-260 · Kenai, AK · Accident · 3 fatal · Field investigation · Final report · Aug 14, 1994 · N4839S · Destroyed
  > Inadequate engine maintenance and/or inspection, and fatigue cracking of the engine case, which resulted in eventual damage to the #3 cylinder studs/engine through-bolts, subsequent separation of the #3 cylinder and piston, and an in-flight fire.
- [NTSB SEA94LA209](https://openairdocs.org/ntsb/SEA94LA209.md): Piper PA-28-140 · Redmond, WA · Accident · No injuries · Limited investigation · Final report · Aug 13, 1994 · N95285 · Substantial damage
  > Failure of an exhaust valve. A factor to the accident was: wet grass.
- [NTSB MIA94LA194](https://openairdocs.org/ntsb/MIA94LA194.md): Aerosport Quail · Waynesboro, MS · Accident · Minor injuries · Limited investigation · Final report · Aug 11, 1994 · N10JB · Substantial damage
  > An engine failure due to improper maintenance [overhaul] of the engine crankshaft.
- [NTSB ATL94LA154](https://openairdocs.org/ntsb/ATL94LA154.md): Ayres S2R · Vienna, GA · Accident · Minor injuries · Limited investigation · Final report · Aug 11, 1994 · N8914Q · Substantial damage
  > The loss of engine power because of a fractured cylinder.
- [NTSB MIA94LA193](https://openairdocs.org/ntsb/MIA94LA193.md): Grumman AA-5 · Ormond Beach, FL · Accident · Serious injuries · Limited investigation · Final report · Aug 10, 1994 · N1392R · Substantial damage
  > The improper maintenance work done on the carburetor by a local mechanic that resulted in loss of engine power over unsuitable terrain. A contributing factor was the dirt and moisture that contaminated the carburetor.
- [NTSB FTW94LA266](https://openairdocs.org/ntsb/FTW94LA266.md): Grumman G-164B · Matagorda, TX · Accident · No injuries · Limited investigation · Final report · Aug 10, 1994 · N8251K · Destroyed
  > A power loss due to cracked engine cylinder. A factor was the lack of suitable terrain for the forced landing.
- [NTSB BFO94LA128](https://openairdocs.org/ntsb/BFO94LA128.md): Hankins/Dickerson Clipped Wings II · Laurel, MD · Accident · Serious injuries · Limited investigation · Final report · Aug 9, 1994 · N4287R · Substantial damage
  > The failure of the engine ignition system capacitor discharge unit which caused loss of total engine power.
- [NTSB LAX94FA308](https://openairdocs.org/ntsb/LAX94FA308.md): Piper PA-28R-200 · San Luis Obispo, CA · Accident · 4 fatal · Field investigation · Final report · Aug 7, 1994 · N6959J · Destroyed
  > the failure of the No. 4 cylinder connecting rod for undetermined reasons. The dark night lighting conditions, which hampered the ability of the pilots to detect the power lines, was a factor in this accident.
- [NTSB LAX94FA309](https://openairdocs.org/ntsb/LAX94FA309.md): Aero Commander 112 · Mohave Valley, AZ · Accident · 3 fatal · Field investigation · Final report · Aug 6, 1994 · N1018J · Destroyed
  > Failure of the certified flight instructor to properly judge the flare to avert a hard landing, and the failure of other maintenance personnel to properly repair the engine case halves during engine overhaul. A factor in the accident was the uneven relief of…
- [NTSB BFO94LA127](https://openairdocs.org/ntsb/BFO94LA127.md): Piper PA-28R-200 · Edgewater, MD · Accident · Serious injuries · Limited investigation · Final report · Aug 6, 1994 · N5242T · Destroyed
  > The pilot's inadequate preflight inspection which failed to detect water contaminated fuel which resulted in fuel starvation.
- [NTSB FTW94LA261](https://openairdocs.org/ntsb/FTW94LA261.md): Cessna 150J · Dallas, TX · Accident · Minor injuries · Limited investigation · Final report · Aug 5, 1994 · N60124 · Substantial damage
  > The loss of engine power due to failure of the starter gear and shaft assembly needle bearing. Factors were the dark night conditions and the lack of suitable terrain for a forced landing.
- [NTSB ANC94LA097](https://openairdocs.org/ntsb/ANC94LA097.md): Cessna 206 · Mosquito Flats, AK · Accident · No injuries · Limited investigation · Final report · Aug 5, 1994 · N5200X · Substantial damage
  > The missing number 6 cylinder piston pin cap and the subsequent failure of the number 6 cylinder connecting rod cap. Also, the lack of suitable landing area for the forced landing.
- [NTSB FTW94LA256](https://openairdocs.org/ntsb/FTW94LA256.md): Air Tractor AT-401 · Mcgehee, AR · Accident · No injuries · Limited investigation · Final report · Aug 2, 1994 · N45297 · Substantial damage
  > Total loss of engine power as the engine seized due to a blower bearing failure. A factor was the lack of suitable terrain for the forced landing.
- [NTSB FTW94LA253](https://openairdocs.org/ntsb/FTW94LA253.md): Hughes 269A · Leander, LA · Accident · No injuries · Limited investigation · Final report · Aug 1, 1994 · N9062G · Substantial damage
  > Inadequate maintenance and a fatigue failure of a #1 cylinder connecting rod bolt. A factor was the lack of suitable terrain available to the pilot for a forced landing.
- [NTSB CHI94LA256](https://openairdocs.org/ntsb/CHI94LA256.md): Piper PA-28-200 · Fort Wayne, IN · Accident · Minor injuries · Limited investigation · Final report · Jul 31, 1994 · N32736 · Destroyed
  > the loss of engine power due to the failure of the number one cylinder.
- [NTSB ANC94LA095](https://openairdocs.org/ntsb/ANC94LA095.md): Starman Teirra II · North Pole, AK · Accident · No injuries · Limited investigation · Final report · Jul 31, 1994 · N43111 · Substantial damage
  > The seizure of the no. 2 cylinder as a result of an inadequate cooling system for the high ambient temperature.
- [NTSB SEA94LA196](https://openairdocs.org/ntsb/SEA94LA196.md): Cessna T210M · Rathdrum, ID · Accident · No injuries · Limited investigation · Final report · Jul 26, 1994 · N761TK · Substantial damage
  > The fatigue failure of the crankshaft and a slipped bearing.
- [NTSB MIA94FA181](https://openairdocs.org/ntsb/MIA94FA181.md): Bellanca 14-9 · Lakeland, FL · Accident · Serious injuries · Field investigation · Final report · Jul 20, 1994 · N25310 · Destroyed
  > The improper modification of the engine driven fuel pump mechanical arm by an unknown person, restricting the fuel systems ability to supply fuel to the engine at full power.
- [NTSB SEA94LA179](https://openairdocs.org/ntsb/SEA94LA179.md): Kaman HH43F · John Day, OR · Accident · Serious injuries · Limited investigation · Final report · Jul 19, 1994 · N324WN · Substantial damage
  > Failure of a turbine compressor wheel. The lack of suitable terrain for an autorotation/forced landing was a factor.
- [NTSB NYC94LA131](https://openairdocs.org/ntsb/NYC94LA131.md): Donovan DER Kricket 17K-1 · Brockport, NY · Accident · No injuries · Limited investigation · Final report · Jul 19, 1994 · N41MD · Substantial damage
  > The loss of engine power as a result of a sticking valve in the carburetor due to dirt contamination.
- [NTSB NYC94LA129](https://openairdocs.org/ntsb/NYC94LA129.md): Pitts S-1S · Stevensville, MD · Accident · Minor injuries · Limited investigation · Final report · Jul 15, 1994 · N515TN · Substantial damage
  > Inadequate maintenance by which undertorquing of the accessory gear retaining bolt resulted in fatigue failure of the bolt and the subsequent loss of engine power.
- [NTSB FTW94MA235](https://openairdocs.org/ntsb/FTW94MA235.md): Aerospatiale AS350D · Hanalei, HI · Accident · 3 fatal · Major investigation · Final report · Jul 15, 1994 · N151BH · Substantial damage
  > Failure of the engine-driven fuel pump, which resulted in the loss of power, and the lack of aircraft flotation equipment. Factors related to the accident were: flight over water adjacent to terrain that afforded no suitable forced landing site, and the lack…
- [NTSB FTW94LA230](https://openairdocs.org/ntsb/FTW94LA230.md): North American Navion 4 · Dupont, LA · Accident · Serious injuries · Limited investigation · Final report · Jul 12, 1994 · N8648H · Substantial damage
  > The loss of engine power due to inadequate maintenance adjustment of accessory drive starter gear screws which disengaged in flight. Factors were the lack of suitable terrain for the forced landing and non compliance with the applicable service letter.
- [NTSB CHI94DCQ02](https://openairdocs.org/ntsb/CHI94DCQ02.md): WSK PZL Mielec M-18 Dromader · Colby, KS · Accident · Minor injuries · Final report · Jul 11, 1994 · N4367F · Substantial damage
  > fuel starvation resulting from the fuel shutoff valve closing as a result of improper adjustment.
- [NTSB LAX94LA279](https://openairdocs.org/ntsb/LAX94LA279.md): Frank M. Kopecky Quickie · Camarillo, CA · Accident · Minor injuries · Limited investigation · Final report · Jul 10, 1994 · N8036W · Substantial damage
  > the failure or malfunction of the engine ignition system.
- [NTSB ANC94LA078](https://openairdocs.org/ntsb/ANC94LA078.md): Cessna T207 · Kenai, AK · Accident · Serious injuries · Limited investigation · Final report · Jul 9, 1994 · N91056 · Substantial damage
  > The failure of the engine crankshaft. Factors in the accident were the pilot's inadequate compensation for the wind conditions and not attaining the proper touchdown point at the suitable landing strip.
- [NTSB ATL94LA128](https://openairdocs.org/ntsb/ATL94LA128.md): Air Tractor AT-301 · Smithville, GA · Accident · Minor injuries · Limited investigation · Final report · Jul 2, 1994 · N3649B · Destroyed
  > The failure of # 2 cylinder head.
- [NTSB FTW94FA212](https://openairdocs.org/ntsb/FTW94FA212.md): Piper PA-46-350P · Akron, CO · Accident · Serious injuries · Field investigation · Final report · Jun 25, 1994 · N51CC · Substantial damage
  > The loss of engine power due to oil exhaustion which resulted from a failed oil scraper ring. A factor was unsuitable terrain for a forced landing.
- [NTSB FTW94LA210](https://openairdocs.org/ntsb/FTW94LA210.md): Hiller UH-12L4 · West Helena, AR · Accident · No injuries · Limited investigation · Final report · Jun 22, 1994 · N90453 · Destroyed
  > A total loss of power due to a leak in the main fuel line which occurred as a result of an electrical short which burned a hole in the fuel line. Factors were a failure by the pilot to perform recommended maintenance and the lack of suitable terrain for a…
- [NTSB CHI94DTK02](https://openairdocs.org/ntsb/CHI94DTK02.md): Ayres S2R · Letcher, SD · Accident · No injuries · Final report · Jun 22, 1994 · N3102E · Destroyed
  > the loss of engine power due to the failure of the engine driven fuel pump and shaft.
- [NTSB BFO94LA110](https://openairdocs.org/ntsb/BFO94LA110.md): Ryan Navion B · Amherst, OH · Accident · Minor injuries · Limited investigation · Final report · Jun 22, 1994 · N5360K · Substantial damage
  > Inadequate maintenance by an unqualified person which resulted in the loss of engine ignition due to worn ignition wires.
- [NTSB SEA94FA154](https://openairdocs.org/ntsb/SEA94FA154.md): Cessna 172 · Port Angeles, WA · Accident · 1 fatal · Field investigation · Final report · Jun 21, 1994 · N8025B · Destroyed
  > Lack of oil and connecting rod failure. A factor to the accident was rough/uneven terrain.
- [NTSB NYC94LA101](https://openairdocs.org/ntsb/NYC94LA101.md): Jones Thorp T-18 · East Quogue, NY · Accident · Minor injuries · Limited investigation · Final report · Jun 20, 1994 · N64628 · Substantial damage
  > Inadequate maintenance which resulted in oil-fouled spark plugs and the loss of engine power.
- [NTSB FTW94LA205](https://openairdocs.org/ntsb/FTW94LA205.md): Grumman G-164B · Brinkley, AR · Accident · No injuries · Limited investigation · Final report · Jun 20, 1994 · N112JM · Substantial damage
  > A supercharger impeller bearing failure. A factor was the lack of suitable terrain for the forced landing.

Next page: https://openairdocs.org/ntsb.md?occurrence=351&page=24

## 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=23

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