# NTSB investigations: Continental TSIO-520 series: 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 2 · 62 cases

## Latest cases

- [NTSB DEN08IA044](https://openairdocs.org/ntsb/DEN08IA044.md): Piper PA-46-310P · Aspen, CO · Incident · No injuries · Incident investigation · Final report · Dec 26, 2007 · N47BC · Minor damage
  > The failure of the crankshaft due to fatigue. The fatigue crack initiation was not determined.
- [NTSB ANC06LA144](https://openairdocs.org/ntsb/ANC06LA144.md): Cessna TU206A · Juneau, AK · Accident · No injuries · Limited investigation · Final report · Oct 1, 2006 · N206AK · Substantial damage
  > The separation of the number 6 cylinder assembly from the engine during cruise flight, which resulted in a hard forced landing in rough ocean swells. A factor contributing to the accident was the rough ocean swells.
- [NTSB MIA06LA121](https://openairdocs.org/ntsb/MIA06LA121.md): Cessna T210 · Crestview, FL · Accident · No injuries · Limited investigation · Final report · Jul 15, 2006 · N5266Y · Substantial damage
  > Spinning of the crankshaft No. 2 main bearing for undetermined reasons resulting in damage to the aft cheek of the No. 2 main bearing journal and fatigue failure of the crankshaft.
- [NTSB LAX06LA094](https://openairdocs.org/ntsb/LAX06LA094.md): Cessna T210N · Mariposa, CA · Accident · Minor injuries · Limited investigation · Final report · Jan 24, 2006 · N4791C · Substantial damage
  > The failure of the maintenance personnel to follow the procedures in the TCM maintenance manual and adequately torque the engine through-bolts, which led to the separation of the No. 6 cylinder and the catastrophic failure of the engine.
- [NTSB DFW06CA050](https://openairdocs.org/ntsb/DFW06CA050.md): Cessna T210 · Midland, TX · Accident · No injuries · Data collection · Final report · Jan 5, 2006 · N5279A · Substantial damage
  > The loss of engine power due to a connecting rod failure. Contributing factors were the dark night conditions and the lack of suitable terrain for the forced landing.
- [NTSB NYC05LA074](https://openairdocs.org/ntsb/NYC05LA074.md): Beech A36TC · Southbury, CT · Accident · Minor injuries · Limited investigation · Final report · Apr 20, 2005 · N3810X · Substantial damage
  > The failure of the counter weight aft snap ring to hold the associated plate and pin in place, which resulted in a total loss of engine power.
- [NTSB LAX05LA136](https://openairdocs.org/ntsb/LAX05LA136.md): Cessna T210M · Phoenix, AZ · Accident · Serious injuries · Limited investigation · Final report · Apr 13, 2005 · N732SY · Substantial damage
  > a loss of power for undetermined reasons.
- [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 MIA05LA016](https://openairdocs.org/ntsb/MIA05LA016.md): Cessna T210N · Raymond, MS · Accident · Minor injuries · Limited investigation · Final report · Oct 27, 2004 · N6108Y · Destroyed
  > The total loss of engine power which was initiated by fretting of the crankcase halves for undetermined reasons, causing rotation of several of the main bearings, oil starvation, and subsequent failure of several of the connecting rods. A contributing factor…
- [NTSB DEN04LA107](https://openairdocs.org/ntsb/DEN04LA107.md): Cessna P210N · Douglas, WY · Accident · No injuries · Limited investigation · Final report · Jul 20, 2004 · N7736K · Substantial damage
  > the failure of the engine's crankshaft due to the rotation of the engine's number two bearing, which resulted in the oil starvation of the crankshaft's number 2 main journal. Contributing factors include the engine's improper maintenance, and the in-flight…
- [NTSB DEN04LA098](https://openairdocs.org/ntsb/DEN04LA098.md): Cessna T210N · Spanish Fork, UT · Accident · No injuries · Limited investigation · Final report · Jul 5, 2004 · N5408A · Substantial damage
  > the improper reassembly of the engine following major overhaul (application of Permatex over entire crankcase surfaces). Contributing factors included the number 2 main bearing and crankshaft shifting forward, causing the alternator drive shaft and other…
- [NTSB NYC04LA105](https://openairdocs.org/ntsb/NYC04LA105.md): Piper PA-46-310P · Taylor, PA · Accident · No injuries · Limited investigation · Final report · Apr 13, 2004 · N861DD · Substantial damage
  > The failure of the number 2 connecting rod, after a main bearing shift, which resulted in a catastrophic engine failure.
- [NTSB MIA03LA160](https://openairdocs.org/ntsb/MIA03LA160.md): Cessna T210M · Hialeah, FL · Accident · No injuries · Limited investigation · Final report · Aug 10, 2003 · N86PH · Substantial damage
  > Spinning of the crankshaft No. 2 main bearing for undetermined reasons resulting in damage to the aft cheek of the No. 2 main bearing journal, fatigue failure of the crankshaft cheek, failure of the engine in cruise flight, and damage to the airplane during…
- [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 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 FTW02FA054](https://openairdocs.org/ntsb/FTW02FA054.md): Cessna T210-M · Monticello, AR · Accident · 2 fatal · Field investigation · Final report · Dec 9, 2001 · N317RG · Destroyed
  > The separation of the #2 connecting rod and subsequent catastrophic failure of the engine. A factor was the in-flight collision with a vehicle while maneuvering to a emergency landing area.
- [NTSB FTW01LA210](https://openairdocs.org/ntsb/FTW01LA210.md): Cessna T188C · Aiken, TX · Accident · No injuries · Limited investigation · Final report · Sep 27, 2001 · N4629J · Substantial damage
  > the application of silicon sealant to the crankcase mating surfaces by maintenance personnel, which resulted in improper torque on the bolts which mate the crankcase halves, vibration, and the subsequent failure of the #2 main crankshaft bearing. A factor was…
- [NTSB NYC01FA141](https://openairdocs.org/ntsb/NYC01FA141.md): Cessna P210N · Honesdale, PA · Accident · 3 fatal · Field investigation · Final report · Jun 11, 2001 · N450M · Destroyed
  > An improperly manufactured torquemeter gearshaft assembly, which resulted in gearshaft assembly failure, an N2 overspeed, and a subsequent uncontained engine failure.
- [NTSB CHI01LA037](https://openairdocs.org/ntsb/CHI01LA037.md): Cessna T210N · Kankakee, IL · Accident · Serious injuries · Limited investigation · Final report · Nov 11, 2000 · N9528Y · Substantial damage
  > The unsuitable terrain encountered by the pilot during the emergency landing. Factors to the accident were the loss of engine power due to the failure of the crankshaft, the pilot misjudging the descent glide path, and the presence of the highway embankment…
- [NTSB NYC00LA200](https://openairdocs.org/ntsb/NYC00LA200.md): Cessna P210N · Richfield Sprng, NY · Accident · Serious injuries · Limited investigation · Final report · Jul 17, 2000 · N5256W · Substantial damage
  > Failure of the number two cylinder main bearing for undetermined reasons.
- [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 SEA98FA092](https://openairdocs.org/ntsb/SEA98FA092.md): Cessna T210N · Hillsboro, OR · Accident · 2 fatal · Field investigation · Final report · Jun 9, 1998 · N199JM · Destroyed
  > Improper installation (bushing), mechanical binding (bushing), mechanical binding (connecting rod), and fatigue within the crankshaft. Contributing factors were inadequate major (engine) overhaul and trees.
- [NTSB FTW98LA173](https://openairdocs.org/ntsb/FTW98LA173.md): Cessna T210L · Santa Teresa, NM · Accident · Minor injuries · Limited investigation · Final report · Apr 5, 1998 · N591DC · Substantial damage
  > failure of the number 1 piston, which resulted in loss of engine power and a subsequent forced landing. The lack of suitable terrain for a forced landing was a related factor.
- [NTSB LAX97LA307](https://openairdocs.org/ntsb/LAX97LA307.md): Cessna T210M · San Martin, CA · Accident · No injuries · Limited investigation · Final report · Aug 29, 1997 · N761HQ · Substantial damage
  > Installation of improper connecting hardware by maintenance personnel, and, the inadequate inspection of the installed hardware by inspection personnel resulting in separation of the engine throttle linkage.
- [NTSB ATL97LA124](https://openairdocs.org/ntsb/ATL97LA124.md): Cessna 414A · Anderson, SC · Accident · Minor injuries · Limited investigation · Final report · Aug 24, 1997 · N4668N · Substantial damage
  > the pilot misjudged distance and speed on final approach to land and failed to attain a proper touchdown point during the landing, which resulted in an overrun of the runway and collision with a fence. A related factor was the loss of engine power during…
- [NTSB CHI97IA127](https://openairdocs.org/ntsb/CHI97IA127.md): Cessna T210 · Winona, MN · Incident · No injuries · Incident investigation · Final report · May 8, 1997 · N7398M · No damage
  > Loss of engine power due to improper maintenance installation.
- [NTSB NYC97LA035](https://openairdocs.org/ntsb/NYC97LA035.md): Cessna T210M · Lexington, KY · Accident · Minor injuries · Limited investigation · Final report · Dec 21, 1996 · N732UH · Substantial damage
  > failure of #5 exhaust valve and/or #5 exhaust valve guide, which resulted in a progressive engine failure (debris puncturing the #5 piston crown, exhaust gasses entering the crankcase, loss of oil through the breather system, oil exhaustion, and subsequent…
- [NTSB IAD96LA046](https://openairdocs.org/ntsb/IAD96LA046.md): Cessna P210N · Hazard, KY · Accident · Minor injuries · Limited investigation · Final report · Feb 23, 1996 · N90AD · Substantial damage
  > failure of the engine crankshaft, which resulted in loss of engine power, a forced landing, and subsequent damage to the airplane. A factor relating to the accident was: lack of suitable terrain for a forced landing.
- [NTSB CHI95LA137](https://openairdocs.org/ntsb/CHI95LA137.md): Cessna P210N · Dodge City, KS · Accident · Serious injuries · Limited investigation · Final report · Apr 26, 1995 · N4614K · Minor damage
  > fatigue and subsequent catastrophic failure of the connecting rod originating from the decarburized area on the shank of the rod. Factors were the low cloud weather condition and the ditch.
- [NTSB CHI95LA047](https://openairdocs.org/ntsb/CHI95LA047.md): Cessna P210N · Aurora, MO · Accident · Minor injuries · Limited investigation · Final report · Nov 24, 1994 · N4872P · Substantial damage
  > An undetermined failure of the engine crankshaft resulting in total loss of engine power. The terrain at the emergency landing site and nighttime darkness were contributing factors.
- [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 ATL94LA053](https://openairdocs.org/ntsb/ATL94LA053.md): Cessna T210R · Baxley, GA · Accident · No injuries · Limited investigation · Final report · Feb 23, 1994 · N7793U · Substantial damage
  > Damage to the crankshaft internal oil tube by other maintenance persons during the engine overhaul that resulted in oil starvation.
- [NTSB MIA94FA064](https://openairdocs.org/ntsb/MIA94FA064.md): Cessna T210M · Prentiss, MS · Accident · 2 fatal · Field investigation · Final report · Feb 3, 1994 · N6572M · Destroyed
  > A total loss of engine power due to the number five piston crown structure sustaining detonation/pre-ignition damage for undetermined reasons. The number two connecting rod and rod bolts failed due to an oil distress event. This resulted in a subsequent…
- [NTSB BFO93LA164](https://openairdocs.org/ntsb/BFO93LA164.md): Cessna 402B · Eau Claire, PA · Accident · No injuries · Limited investigation · Final report · Sep 8, 1993 · N4504B · Substantial damage
  > The separation of the number four cylinder on the airplane's left engine for undetermined reasons. A factor in the accident was the rough/uneven terrain.
- [NTSB LAX93LA194](https://openairdocs.org/ntsb/LAX93LA194.md): Cessna P210N · Oakland, CA · Accident · Serious injuries · Limited investigation · Final report · May 1, 1993 · N731HP · Destroyed
  > the pilot's poor decision to continue flying the airplane with a known deficiency and the poorly performed major overhaul of the engine. The failed crankshaft due to fatigue are factors in this accident.
- [NTSB DEN93LA030](https://openairdocs.org/ntsb/DEN93LA030.md): Cessna T210N · Walsh, CO · Accident · No injuries · Limited investigation · Final report · Mar 3, 1993 · N5367A · Substantial damage
  > A complete power loss from mechanical failure. A factor was: a pond, which the aircraft entered during landing roll.
- [NTSB SEA92LA082](https://openairdocs.org/ntsb/SEA92LA082.md): Beech B36TC · Mona, UT · Accident · No injuries · Limited investigation · Final report · Apr 22, 1992 · N7252X · Substantial damage
  > A fatigue failure to the crankshaft and a manufacturing material defect.
- [NTSB BFO92LA028](https://openairdocs.org/ntsb/BFO92LA028.md): Piper PA-46 · Baltimore, MD · Accident · No injuries · Limited investigation · Final report · Jan 30, 1992 · N9103Q · Substantial damage
  > The failure of the fuel line, for undetermined reasons, resulting in a fuel leak causing an engine fire and total power loss.
- [NTSB MIA92FA058](https://openairdocs.org/ntsb/MIA92FA058.md): Cessna 402B · Lantana, FL · Accident · 1 fatal · Field investigation · Final report · Jan 11, 1992 · N3767C · Destroyed
  > The pilot in commands failure to maintain airspeed above single engine minimum control speed resulting in an inflight loss of control and collision with terrain. Contributing to the accident was the pilot in command's failure to declare an emergency and…
- [NTSB FTW92FA029](https://openairdocs.org/ntsb/FTW92FA029.md): Cessna 402B · Roanoke, TX · Accident · Serious injuries · Field investigation · Final report · Nov 29, 1991 · N69CR · Destroyed
  > The operation of the airplane with known deficiencies, a missing air cooling baffle, and inadequate maintenance. Factors were the frozen propeller, inability of the pilot to feather the propeller, inoperative landing gear, the inability of the pilot to…
- [NTSB SEA91LA117](https://openairdocs.org/ntsb/SEA91LA117.md): Cessna T-210N · Klamath Falls, OR · Accident · Minor injuries · Limited investigation · Final report · May 27, 1991 · N5375A · Substantial damage
  > The loss of engine power due to failure of the number 5 cylinder rod bearing which resulted from lack of lubrication of the main bearing.
- [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 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 DEN90FA159](https://openairdocs.org/ntsb/DEN90FA159.md): Cessna P210R · Ogden, UT · Accident · 1 fatal · Field investigation · Final report · Jul 12, 1990 · N6203A · Destroyed
  > Failure of the #1 piston due to pre-ignition/detonation in the #1 cylinder, and inadequate visual lookout by the pilot (his failure to see-and-avoid the obstruction). The obstruction (power line) was a related factor.
- [NTSB DEN90LA026](https://openairdocs.org/ntsb/DEN90LA026.md): Cessna T210L · Gillette, WY · Accident · Minor injuries · Limited investigation · Final report · Nov 22, 1989 · N843YT · Substantial damage
  > Forced landing in unsuitable terrain as a result of an engine crankshaft failure at low level cruise flight.
- [NTSB LAX88LA159](https://openairdocs.org/ntsb/LAX88LA159.md): Cessna TU206G · Coarsegold, CA · Accident · Minor injuries · Limited investigation · Final report · Apr 13, 1988 · N735SU · Substantial damage
  > While at cruise flight, the engine surged twice then quit. During the emergency landing, the airplane collided with the terrain. Inspection of the engine revealed that the number three connecting rod broke.
- [NTSB ANC87LA162](https://openairdocs.org/ntsb/ANC87LA162.md): Cessna 206G · 100mi S.Kng Slm, AK · Accident · No injuries · Limited investigation · Final report · Sep 19, 1987 · N756TT · Substantial damage
  > The aircraft experienced an engine power loss while in cruise flight and subsequently undershot a lake during the emergency landing. Examination of the engine revealed the number 2 bearing was found completely disintegrated and missing from its seat. Evidence…
- [NTSB MIA87LA154](https://openairdocs.org/ntsb/MIA87LA154.md): Cessna T210N · Apalachicola, FL · Accident · No injuries · Limited investigation · Final report · May 2, 1987 · N4612C · Substantial damage
  > The plt stated that he departed panama city en route to tampa, FL, when the manifold pressure and oil pressure started to drop. He then turned towards Apalachicola to try to make it to the airport but was unable and made a forced landing in a swampy area aprx…
- [NTSB MKC86LA193](https://openairdocs.org/ntsb/MKC86LA193.md): Cessna T210M · Old Monroe, MO · Accident · No injuries · Limited investigation · Final report · Sep 23, 1986 · N6163N · Substantial damage
  > The PIC had initiated his descent ot his destination arpt when he rptd experiencing eng pblms. The rough running eng finally quit and the PIC made a forced lndg to an open fld. The subsequent lndg encountered a ditch and the nose gear collapsed. Exam of the…
- [NTSB FTW86LA148](https://openairdocs.org/ntsb/FTW86LA148.md): Cessna P210N · Altus, OK · Accident · Serious injuries · Limited investigation · Final report · Aug 13, 1986 · N731RR · Destroyed
  > The engine failed at 10,500 feet MSL and the pilot was vectored to a small private sod strip. However, this strip had been closed and plowed up for about a year and was not listed on the current aeronautical charts. The pilot was then revectored to another…

Next page: https://openairdocs.org/ntsb.md?engine=17040&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."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('17040')
    AND EXISTS (SELECT 1 FROM 'https://openairdocs.org/data/latest/ntsb_occurrences.parquet' o WHERE o.case_mkey = x.case_mkey AND o.aircrafts_position = x.position AND 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?engine=17040&occurrence=351

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