# Fatal 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 1 of 6 · 286 cases

## Latest cases

- [NTSB NYC08FA053](https://openairdocs.org/ntsb/NYC08FA053.md): Piper PA-28R-200 · Augusta, GA · Accident · 1 fatal · Field investigation · Final report · Dec 5, 2007 · N43274 · Substantial damage
  > A loss of engine power due to the fatigue fracture of the number 2 cylinder attach studs, and the subsequent separation of the number 2 cylinder.
- [NTSB MIA07LA155](https://openairdocs.org/ntsb/MIA07LA155.md): Grumman AA-5A · Worthington, KY · Accident · 1 fatal · Limited investigation · Final report · Sep 22, 2007 · N26442 · Substantial damage
  > The separation of the engine's No. 4 piston from the crankshaft for unidentified reasons and the pilot's continued operation with known equipment deficiencies.
- [NTSB SEA07FA195](https://openairdocs.org/ntsb/SEA07FA195.md): Yakovlev YAK-55M · Everett, WA · Accident · 1 fatal · Field investigation · Final report · Jul 14, 2007 · N55NH · Destroyed
  > The pilot's inadequate preflight planning and inspection that led to oil exhaustion and a catastrophic engine failure. Also causal was the pilot's attempted operation of an aircraft with known deficiencies, and the lack of a current airworthiness inspection.…
- [NTSB NYC07FA119](https://openairdocs.org/ntsb/NYC07FA119.md): Beech BE-A55 · Dunkirk, NY · Accident · 3 fatal · Field investigation · Final report · May 17, 2007 · C-FDJP · Substantial damage
  > The pilot's failure to maintain aircraft control during a single-engine missed approach, after the failure of the airplane's left engine aft-top counterweight assembly. Contributing to the accident were instrument meteorological conditions due to clouds.
- [NTSB ANC07FA013](https://openairdocs.org/ntsb/ANC07FA013.md): Cessna 207A · Kenai, AK · Accident · 1 fatal · Field investigation · Final report · Jan 9, 2007 · N9941M · Substantial damage
  > The total loss of engine power during cruise flight due to the disintegration of engine bearings and the fracture of a connecting rod, which resulted in a ditching into ice covered ocean water. Factors contributing to the survivability of the accident were…
- [NTSB NYC07LA026](https://openairdocs.org/ntsb/NYC07LA026.md): Vogel Glastar 41 · Snow Shoe, PA · Accident · 1 fatal · Limited investigation · Final report · Nov 11, 2006 · N441AV · Substantial damage
  > The builder's improper installation of an additional alternator. Contributing to the accident were the night lighting conditions.
- [NTSB DFW07FA020](https://openairdocs.org/ntsb/DFW07FA020.md): Piper PA-32-300 · Danville, AR · Accident · 3 fatal · Field investigation · Final report · Nov 5, 2006 · N15852 · Destroyed
  > Failure of the number 5 cylinder which resulted in oil starvation and the subsequent loss of engine power, and the pilot's inability to see the transmission line during the forced landing. Factors Contributing to the accident were the dark night and the…
- [NTSB DFW07FA007](https://openairdocs.org/ntsb/DFW07FA007.md): Piper PA-32R-300 · Dry Prong, LA · Accident · 1 fatal · Field investigation · Final report · Oct 22, 2006 · N64GK · Substantial damage
  > The loss of engine power during cruise flight due to oil starvation, resulting in an emergency off-airport forced landing. A factor associated with the accident was the instructor's improper in-flight decision in delaying to seek an emergency landing site…
- [NTSB SEA06LA162](https://openairdocs.org/ntsb/SEA06LA162.md): Kaman HH-43F · Metaline Falls, WA · Accident · 1 fatal · Limited investigation · Final report · Aug 18, 2006 · N559D · Destroyed
  > The failure of the left-hand cross-shaft input internal spline while the helicopter was in a hover, which resulted in the loss of gear box timing, in-flight blade contact and separation, and the subsequent loss of control and impact with a log deck.
- [NTSB CHI06FA210](https://openairdocs.org/ntsb/CHI06FA210.md): de Havilland DHC-6-100 · Sullivan, MO · Accident · 6 fatal · Class 1 · Field · Final report · Jul 29, 2006 · N203E · Substantial damage
  > the pilot's failure to maintain airspeed following a loss of power in the right engine due to the fracturing of compressor turbine blades for undetermined reasons. Contributing to some parachutists' injuries was the lack of a more effective restraint system…
- [NTSB LAX06FA129](https://openairdocs.org/ntsb/LAX06FA129.md): Beech A36 · Santa Monica, CA · Accident · 2 fatal · Field investigation · Final report · Mar 13, 2006 · N16JR · Substantial damage
  > The failure of an aviation maintenance technician to properly torque and cotter pin the number 2 connecting rod bolts at their attach point to the crankshaft, which resulted in the separation of the connecting rod in flight, and complete power loss.
- [NTSB MIA06FA024](https://openairdocs.org/ntsb/MIA06FA024.md): Piper PA-32-300 · Mims, FL · Accident · 2 fatal · Field investigation · Final report · Nov 23, 2005 · N666DE · Substantial damage
  > The loss of engine power due to improper installation of the #2 cylinder by maintenance personnel, which resulted in the separation of the cylinder as a result of fatigue cracking of the cylinder to crankcase fasteners. A contributing factor was the lack of…
- [NTSB DFW06LA027](https://openairdocs.org/ntsb/DFW06LA027.md): Arrow Falcon Exporters Arrow F OH-58A · West Memphis, AR · Accident · 1 fatal · Limited investigation · Final report · Nov 5, 2005 · N331TA · Destroyed
  > The loss of engine power due to a disconnected pneumatic (Pc) line. A contributing factor was the ravine.
- [NTSB NYC06FA015](https://openairdocs.org/ntsb/NYC06FA015.md): Cessna 411 · East Hampton, NY · Accident · 1 fatal · Field investigation · Final report · Oct 23, 2005 · N7345U · Destroyed
  > The pilot's failure to maintain airspeed, while maneuvering with the left engine inoperative. Contributing to the accident were the failure of the left engine, and the pilot's lack of multiengine certification.
- [NTSB LAX05FA264](https://openairdocs.org/ntsb/LAX05FA264.md): San Joaquin Helicopters OH-58A+ · Lancaster, CA · Accident · 1 fatal · Field investigation · Final report · Aug 10, 2005 · N177SJ · Substantial damage
  > The pinion to turbine shaft coupling failed in fatigue due to a misaligned turbine shaft, which resulted in a loss of engine power.
- [NTSB CHI05LA226](https://openairdocs.org/ntsb/CHI05LA226.md): Piper PA-28-161 · Culver, IN · Accident · 2 fatal · Limited investigation · Final report · Aug 10, 2005 · N4512Q · Substantial damage
  > The loss of engine power while maneuvering due to partial failure of the left magneto, and the flight instructor's failure to maintain sufficient airspeed to avoid a stall. An additional cause was improper maintenance by company maintenance personnel,…
- [NTSB LAX05GA231](https://openairdocs.org/ntsb/LAX05GA231.md): Eurocopter France EC120B · Fair Oaks, CA · Accident · 2 fatal · Final report · Jul 14, 2005 · N266SD · Destroyed
  > The failure of the constant delta P diaphragm in the fuel control unit, which resulted in an increased fuel flow and subsequent catastrophic failure of the engine. The diaphragm's failure was the result of improper installation by the engine manufacturer. A…
- [NTSB ATL05LA103](https://openairdocs.org/ntsb/ATL05LA103.md): Rutherford Seawind 3000 · Sarasota, FL · Accident · 1 fatal · Limited investigation · Final report · Jun 18, 2005 · N7117 · Substantial damage
  > Maintenance personnel failure to secure throttle linkage on the carburetor which resulted in loss of engine power and a collision with a building.
- [NTSB IAD05FA068](https://openairdocs.org/ntsb/IAD05FA068.md): Cessna R182 · New Fairfield, CT · Accident · 2 fatal · Field investigation · Final report · May 24, 2005 · N756PN · Destroyed
  > Failure of the aluminum-clad, number two connecting rod bearings, which resulted in a total loss of engine power. A factor was the relatively short forced landing area.
- [NTSB CHI05FA048](https://openairdocs.org/ntsb/CHI05FA048.md): Beech S35 · Herman, WI · Accident · 2 fatal · Field investigation · Final report · Dec 25, 2004 · N5631K · Substantial damage
  > The installation of the improper cylinder base packing seals by maintenance personnel resulting in the loss of lubriation and subsequent failure of the number four connecting rod/bearing. A factor associated with the accident was the trees that the airplane…
- [NTSB IAD05FA012](https://openairdocs.org/ntsb/IAD05FA012.md): Cessna P210 · Paint Lick, KY · Accident · 1 fatal · Field investigation · Final report · Nov 12, 2004 · N6539P · Destroyed
  > Improper alignment of a turbocharger oil line, which resulted in wear damage through the hose wall and a subsequent loss of engine oil. Contributing to the accident was the low cloud ceiling.
- [NTSB ATL05FA013](https://openairdocs.org/ntsb/ATL05FA013.md): Beech BE-60 · Asheville, NC · Accident · 4 fatal · Field investigation · Final report · Oct 27, 2004 · N611JC · Substantial damage
  > The pilot's failure to follow emergency procedures and to maintain airspeed following a loss of engine power during takeoff, which resulted in an inadvertent stall/spin and subsequent uncontrolled impact with terrain. Contributing to the cause was inadequate…
- [NTSB NYC05FA005](https://openairdocs.org/ntsb/NYC05FA005.md): Piper PA-28-161 · Madison, CT · Accident · 2 fatal · Field investigation · Final report · Oct 11, 2004 · N233PA · Substantial damage
  > A loss of engine power due to separation of the propeller due to under-torqued retention bolts.
- [NTSB CHI04FA203](https://openairdocs.org/ntsb/CHI04FA203.md): Knoepflein Lancair Legacy 2000 · Madison, WI · Accident · 1 fatal · Field investigation · Final report · Aug 1, 2004 · N98SN · Destroyed
  > A loss of engine power due to high engine temperatures which resulted in a failure of the number three piston, the pilot's continued operation of the airplane with known high temperature problems, the pilot's poor inflight planning, and the pilot's failure to…
- [NTSB CHI04LA128](https://openairdocs.org/ntsb/CHI04LA128.md): North American P-51C · Hager City, WI · Accident · 1 fatal · Limited investigation · Final report · May 29, 2004 · N61429 · Substantial damage
  > The improper installation of the camshaft drive gear assembly which resulted in the retaining nut backing off allowing the drive gear to move up the shaft. A factor associated with the accident was the low altitude at which the power loss occurred and the…
- [NTSB ATL04FA090](https://openairdocs.org/ntsb/ATL04FA090.md): Smith Aerostar 601P · Johns Island, SC · Accident · 2 fatal · Field investigation · Final report · Apr 5, 2004 · N869CC · Substantial damage
  > The pilot's failure to maintain airspeed during emergency descent, which resulted in an inadvertent stall/spin and uncontrolled descent into trees and terrain. A factor was the loss of engine power in one engine due to pre-ignition/detonation.
- [NTSB LAX04LA132](https://openairdocs.org/ntsb/LAX04LA132.md): Gillespie Sport Copter Vortex · Yuba City, CA · Accident · 1 fatal · Limited investigation · Final report · Feb 21, 2004 · N96XV · Substantial damage
  > a loss of engine power due to the incorrect installation of the fuel line, which resulted in fuel starvation, and the pilot's failure to maintain rotor RPM, which resulted in an inflight loss of control. A factor to the accident was the pilot's lack of…
- [NTSB FTW04FA057](https://openairdocs.org/ntsb/FTW04FA057.md): Cessna 182RG · El Dorado, AR · Accident · 1 fatal · Field investigation · Final report · Jan 6, 2004 · N9318R · Substantial damage
  > The loss of engine power as a result of loss of engine oil due to the failure of the oil filter converter plate gasket and the noncompliance to an airworthiness directive. Contributing factors were the lack of suitable terrain for the forced landing and the…
- [NTSB FTW04FA029](https://openairdocs.org/ntsb/FTW04FA029.md): Bell 407 · High Island 573 · Accident · 1 fatal · Field investigation · Final report · Dec 1, 2003 · N457PH · Destroyed
  > The loss of engine power due to the failure of the 3rd stage turbine wheel and subsequent catastrophic failure of the turbine assembly.
- [NTSB LAX04FA042](https://openairdocs.org/ntsb/LAX04FA042.md): Cessna 177RG · Blk Canyon City, AZ · Accident · 1 fatal · Field investigation · Final report · Nov 13, 2003 · N431DL · Destroyed
  > a loss of engine power due to the failure of the single-drive dual magneto that resulted from inadequate lubrication of the breaker cam. Also causal was the improper maintenance by other maintenance personnel during a recent inspection, which should have…
- [NTSB LAX04LA029](https://openairdocs.org/ntsb/LAX04LA029.md): North American T-28B · Hornbrook, CA · Accident · 1 fatal · Limited investigation · Final report · Oct 28, 2003 · N28AF · Destroyed
  > a catastrophic engine failure from oil exhaustion due to inadequate maintenance installation of the lubricating system hoses.
- [NTSB LAX03LA300](https://openairdocs.org/ntsb/LAX03LA300.md): McClanahan Stits Playmate SA-11 · Fontana, CA · Accident · 2 fatal · Limited investigation · Final report · Sep 27, 2003 · N9YC · Destroyed
  > a loss of engine power due to oil starvation that was the result of misaligned main bearing halves that obstructed the oil galley passages. Since the history of the engine could not be reconstructed, the person or entity responsible for the bearing…
- [NTSB MIA03FA141](https://openairdocs.org/ntsb/MIA03FA141.md): Cessna 402C · Treasure Cay, Bahamas · Accident · 2 fatal · Class 1 · Field · Final report · Jul 13, 2003 · N314AB · Substantial damage
  > the in-flight failure of the right engine and the pilot’s failure to adequately manage the airplane’s performance after the engine failed. The right engine failure resulted from inadequate maintenance that was performed by Air Sunshine’s maintenance personnel…
- [NTSB CHI03LA201](https://openairdocs.org/ntsb/CHI03LA201.md): McIlraith Sea Rey · Tomah, WI · Accident · 2 fatal · Limited investigation · Final report · Jul 5, 2003 · N216ST · Destroyed
  > The loss of engine power for an undetermined reason, and the pilot's failure to maintain airspeed resulting in a stall/spin during the forced landing.
- [NTSB LAX03FA200](https://openairdocs.org/ntsb/LAX03FA200.md): McDonnell Douglas 369D · Volcano, HI · Accident · 4 fatal · Field investigation · Final report · Jun 15, 2003 · N4493M · Destroyed
  > a loss of engine power due to the fatigue fracture and separation of the compressor coupling adapter. The fatigue fracture was initiated by fretting on the pilot diameter due to both the inadequate design of the coupling and the coaxial misalignment of the…
- [NTSB FTW03FA120](https://openairdocs.org/ntsb/FTW03FA120.md): Piper PA-32-300 · Broken Arrow, OK · Accident · 3 fatal · Field investigation · Final report · Mar 31, 2003 · N70NZ · Destroyed
  > Failure of the engine due to the blow-by condition in the number six cylinder for undetermined reasons, which resulted in oil starvation and eventual failure of the associated connecting rod end cap. Also causal was the pilot's failure to maintain airspeed…
- [NTSB FTW03FA097](https://openairdocs.org/ntsb/FTW03FA097.md): Bell 407 · Mi 700 · Accident · 2 fatal · Field investigation · Final report · Feb 16, 2003 · N407HH · Destroyed
  > The catastrophic failure of the engine resulting from 1st stage turbine wheel blade failure due to type 1 hot corrosion (sulfidation). Contributing factors were the pilot's failure to brief the passengers on emergency safety equipment (life raft), the pilot's…
- [NTSB NYC03FA043](https://openairdocs.org/ntsb/NYC03FA043.md): Beech V35B · Delaware City, DE · Accident · 2 fatal · Field investigation · Final report · Jan 26, 2003 · N6432X · Substantial damage
  > The mechanic's improper engine overhaul. A factor was the night condition.
- [NTSB CHI03LA052](https://openairdocs.org/ntsb/CHI03LA052.md): Havir Avid Flyer · Cambridge, NE · Accident · 1 fatal · Limited investigation · Final report · Jan 13, 2003 · N248H · Destroyed
  > The inadvertent stall by the pilot following a total loss of engine power and the seizure of the engine. A factor to the accident was the engine overhaul not performed in accordance with the manufacturer's recommendations.
- [NTSB DEN03FA025](https://openairdocs.org/ntsb/DEN03FA025.md): Cessna 421 · Akron, CO · Accident · 2 fatal · Field investigation · Final report · Dec 25, 2002 · N421D · Destroyed
  > The fractured connecting rods and the pilot not maintaining aircraft control following the engine failure. Factors contributing to the accident were the low altitude, the pilot not maintaining minimum controllable airspeed following the engine failure, the…
- [NTSB ATL03FA025](https://openairdocs.org/ntsb/ATL03FA025.md): Piper PA-32-300 · Macon, GA · Accident · 4 fatal · Field investigation · Final report · Dec 21, 2002 · N47420 · Destroyed
  > The loss of engine power due to oil starvation.
- [NTSB FTW03FA044](https://openairdocs.org/ntsb/FTW03FA044.md): Cessna 210L · Kentwood, LA · Accident · 1 fatal · Field investigation · Final report · Nov 20, 2002 · N93770 · Destroyed
  > The failure of the #1 and #2 connecting rods during climb to cruise due to overheating, resulting from oil starvation. A contributing factor was the low cloud conditions limiting the pilot's visibility during the ensuing emergency landing.
- [NTSB LAX03FA005](https://openairdocs.org/ntsb/LAX03FA005.md): Grumman AA-5A · Phoenix, AZ · Accident · 1 fatal · Field investigation · Final report · Oct 12, 2002 · N9566U · Destroyed
  > failure of the lubricating system resulting in a total loss of engine power and an off airport forced landing.
- [NTSB ATL02FA175](https://openairdocs.org/ntsb/ATL02FA175.md): Piper PA-28-140 · Milton, FL · Accident · 1 fatal · Field investigation · Final report · Sep 23, 2002 · N8828N · Substantial damage
  > A sheared mixture cable which resulted in a loss of engine power.
- [NTSB IAD02FA091](https://openairdocs.org/ntsb/IAD02FA091.md): Piper PA 32R-301T · Byram Township, NJ · Accident · 2 fatal · Field investigation · Final report · Sep 8, 2002 · C-GKLY · Destroyed
  > the improper manufacturing of the crankshaft gear bolt, which resulted in the failure of the bolt due to hydrogen embrittlement, and the subsequent loss of engine power. Also causal was the engine manufacturer's failure to remove the affected bolts from fixed…
- [NTSB CHI02FA231](https://openairdocs.org/ntsb/CHI02FA231.md): Piper PA-46-350P · Benton Harbor, MI · Accident · 3 fatal · Field investigation · Final report · Aug 4, 2002 · N316PM · Substantial damage
  > The pilot's failure to maintain airspeed above stall speed resulting in a stall/spin. Additional causes were the pilot not maintaining best glide airspeed and optimal glidepath following the loss of engine power. A factor to the accident was the engine…
- [NTSB MIA02FA131](https://openairdocs.org/ntsb/MIA02FA131.md): American General AA-5 · Boca Raton, FL · Accident · 2 fatal · Field investigation · Final report · Jul 12, 2002 · N6024L · Minor damage
  > The owner/operator's failure to perform an overhaul or comply with a service bulletin 240 which would have probably precluded the continued installation of the number four cylinder exhaust valve and its subsequent failure.
- [NTSB LAX02LA197](https://openairdocs.org/ntsb/LAX02LA197.md): Piper PA-22-135 · Brownsville, CA · Accident · 1 fatal · Limited investigation · Final report · Jun 14, 2002 · N3329B · Destroyed
  > a loss of engine power for undetermined reasons. Also causal was the pilot's failure to maintain an adequate airspeed during a turn to reverse course back to the runway, resulting in a stall and collision with terrain.
- [NTSB LAX02FA163](https://openairdocs.org/ntsb/LAX02FA163.md): Cessna T210M · Groveland, CA · Accident · 2 fatal · Field investigation · Final report · May 13, 2002 · N761LX · Destroyed
  > a catastrophic engine failure due to the fatigue fracture and failure of the crankshaft. A factor contributing to the accident was the unsuitable nature of the mountainous terrain for a successful forced landing. The precipitating cause of the fatigue…
- [NTSB FTW02FA106](https://openairdocs.org/ntsb/FTW02FA106.md): Beech D35 · Nacogdoches, TX · Accident · 1 fatal · Field investigation · Final report · Mar 29, 2002 · N2966B · Substantial damage
  > The failure of the engine driven fuel pump drive pin resulted in a total loss of engine power. Contributing factors were inadequate maintenance, the pilot's inadequate use of the manual auxillary fuel pump (wobble pump), and the night conditions.

Next page: https://openairdocs.org/ntsb.md?fatal=1&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 c."highestInjuryLevel" = 'Fatal'
  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?fatal=1&occurrence=351

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OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.
