# NTSB investigations: Lycoming TI0-540 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 · 69 cases

## Latest cases

- [NTSB CHI07LA071](https://openairdocs.org/ntsb/CHI07LA071.md): Piper PA-32-300 · Pellston, MI · Accident · Serious injuries · Limited investigation · Final report · Feb 11, 2007 · N4258R · Substantial damage
  > The fatigue failure of the engine cylinder which resulted in a complete loss of engine power, and the unsuitable terrain encountered by the pilot during the subsequent forced landing. Contributing to the accident were the night lighting condition, and trees.
- [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 DEN06LA112](https://openairdocs.org/ntsb/DEN06LA112.md): Piper PA-24-260 · Harrisburg, NE · Accident · No injuries · Limited investigation · Final report · Aug 10, 2006 · N8741P · Substantial damage
  > The loss of engine power resulting from mechanical failure of a connecting rod for undetermined reasons. A contributing factor was the lack of suitable terrain for the forced landing.
- [NTSB SEA06LA141](https://openairdocs.org/ntsb/SEA06LA141.md): Piper PA-32-300 · Grantsville, UT · Accident · No injuries · Limited investigation · Final report · Jul 7, 2006 · N56824 · Substantial damage
  > A lack of lubrication for undetermined reasons, which resulted in the failure of the Nos. 2, 3, 4, 5 and 6 connecting rods, a subsequent total loss of engine power during descent, which resulted in a forced landing. A factor in the accident was the soft sand.
- [NTSB MIA06LA063](https://openairdocs.org/ntsb/MIA06LA063.md): Piper PA-32RT-300T · Baker, FL · Accident · Minor injuries · Limited investigation · Final report · Mar 12, 2006 · N321GS · Substantial damage
  > A loss of engine power due to an oil line leak and oil exhaustion. A contributing factor was the unsuitable terrain on which to make a forced landing.
- [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 ATL05LA101](https://openairdocs.org/ntsb/ATL05LA101.md): Piper PA-32-300 · Fort Myers, FL · Accident · Minor injuries · Limited investigation · Final report · Jun 17, 2005 · N646RM · Substantial damage
  > A loss of engine power due to the connecting rod cap separation for undetermined reasons. Related factors were trees and the swampy terrain condition.
- [NTSB ATL05LA007](https://openairdocs.org/ntsb/ATL05LA007.md): Piper PA-32RT-300T · Guntersville, AL · Accident · Serious injuries · Limited investigation · Final report · Oct 21, 2004 · N19TL · Substantial damage
  > Total loss of engine power due to engine oil contamination, engine oil starvation, and multiple connecting rod bearing failures.
- [NTSB FTW04LA238](https://openairdocs.org/ntsb/FTW04LA238.md): Piper PA-31-350 · Sweeny, TX · Accident · No injuries · Limited investigation · Final report · Sep 14, 2004 · N555MC · Substantial damage
  > The fracture failure of the left engine crankshaft for undetermined reasons.
- [NTSB LAX04LA232](https://openairdocs.org/ntsb/LAX04LA232.md): Beech S35 · Flagstaff, AZ · Accident · No injuries · Limited investigation · Final report · Jun 5, 2004 · N6127Q · Substantial damage
  > oil exhaustion due to a leak from the bottom oil drain line gasket and o-ring for the turbo charger.
- [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 LAX04LA084](https://openairdocs.org/ntsb/LAX04LA084.md): Piper PA-32R-300 · Riverside, CA · Accident · No injuries · Limited investigation · Final report · Jan 1, 2004 · N589Q · Substantial damage
  > engine oil exhaustion due to the extrusion of an oil filter converter plate gasket and the failure of the aircraft owner to comply with a mandatory Service Bulletin and a Federal Aviation Administration emergency Airworthiness Directive.
- [NTSB MIA02LA147](https://openairdocs.org/ntsb/MIA02LA147.md): Bellanca 17-31A · Gainesboro, TN · Accident · Minor injuries · Limited investigation · Final report · Aug 10, 2002 · N39835 · Substantial damage
  > a total loss of engine power due to the failure of the main bearing, a loss of oil pressure and the seizure of a connecting rod, resulting in damage to the airplane during the subsequent forced landing.
- [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 DEN02LA028](https://openairdocs.org/ntsb/DEN02LA028.md): Piper PA-32R-300 · Ferron, UT · Accident · Minor injuries · Limited investigation · Final report · Feb 24, 2002 · N47465 · Destroyed
  > a loss of engine power due to the ingestion of foreign object(s) into the meshing of the gears, causing a malfunction of the magneto idler gear and failure of maintenance personnel to detect the signs of imminent failure during a mandatory oil filter…
- [NTSB IAD01LA107](https://openairdocs.org/ntsb/IAD01LA107.md): Piper PA-32RT-300T · Medina, OH · Accident · Serious injuries · Limited investigation · Final report · Sep 25, 2001 · N39945 · Substantial damage
  > fatigue failure of the dual magneto mounting flanges that resulted from undetected contact damage sustained during a previous installation, which resulted in its separation from the engine during take-off.
- [NTSB LAX01LA179](https://openairdocs.org/ntsb/LAX01LA179.md): Piper PA-32RT-300T · Paulden, AZ · Accident · No injuries · Limited investigation · Final report · May 17, 2001 · N22467 · Substantial damage
  > Catastropic engine failure due to oil depletetion caused by an oil filter gasket failure.
- [NTSB LAX01FA113](https://openairdocs.org/ntsb/LAX01FA113.md): Piper PA-32R-300 · Essex, CA · Accident · 2 fatal · Field investigation · Final report · Mar 9, 2001 · N1965H · Destroyed
  > Rupture of the fuel injection flow divider diaphragm due to improper manufacture of the raw material stock from which the diaphragm was fabricated. The diaphragm tear resulted in complete engine power loss, which required the pilot to descend into an…
- [NTSB FTW01LA068](https://openairdocs.org/ntsb/FTW01LA068.md): Piper PA32-R-301T · Haslet, TX · Accident · Serious injuries · Limited investigation · Final report · Feb 17, 2001 · N8355L · Substantial damage
  > the improper installation of the oil filter bypass valve by an unknown person, which resulted in the loss of engine oil and subsequent loss of total power during a normal descent. A contributing factor to the accident was the lack of suitable terrain for the…
- [NTSB LAX00LA277](https://openairdocs.org/ntsb/LAX00LA277.md): Piper PA-31-350 · Boulder City, NV · Accident · No injuries · Limited investigation · Final report · Jul 23, 2000 · N600EE · Substantial damage
  > The fatigue fracture and separation of the No. 6 cylinder fuel injector line due to the company maintenance personnel's failure to comply with an Airworthiness Directive. A factor in the accident was the company's decision to operate the aircraft in…
- [NTSB DEN00IA093](https://openairdocs.org/ntsb/DEN00IA093.md): Piper PA-32R-300 · Erie, CO · Incident · No injuries · Incident investigation · Final report · May 22, 2000 · N424TP · Minor damage
  > Improper installation of cylinders by unknown maintenance personnel who failed to torque the cylinder stud nuts sufficiently.
- [NTSB ANC99LA043](https://openairdocs.org/ntsb/ANC99LA043.md): Piper PA-32R · Fairbanks, AK · Accident · Minor injuries · Limited investigation · Final report · Apr 5, 1999 · N1942H · Substantial damage
  > The loss of engine power due to the failure of maintenance personnel to properly torque a connecting rod bolt during an engine overhaul, and the subsequent disconnection of the connecting rod bolt and connecting rod.
- [NTSB MIA97LA243](https://openairdocs.org/ntsb/MIA97LA243.md): Piper PA-32RT-300 · Oxford, NC · Accident · No injuries · Limited investigation · Final report · Sep 13, 1997 · N9385C · Substantial damage
  > fatigue failure of the No.4 connecting rod in an area where galling had occurred, which resulted in loss of engine power and a forced landing. Related factors were: the pilot's lack of communication by failing to select the proper UNICOM frequency; and his…
- [NTSB ANC97FA097](https://openairdocs.org/ntsb/ANC97FA097.md): Piper PA-32 · Skagway, AK · Accident · 4 fatal · Field investigation · Final report · Jul 4, 1997 · N15199 · Destroyed
  > jamming/failure of the left magneto impulse coupling, which stopped rotation of the magneto gear, and resulted in subsequent shearing of the accessory intermediate idler gear. Factors relating to the accident were: the lack of suitable terrain for a forced…
- [NTSB MIA97FA031](https://openairdocs.org/ntsb/MIA97FA031.md): Piper PA32-300D · Reform, AL · Accident · 1 fatal · Field investigation · Final report · Dec 6, 1996 · N8603N · Destroyed
  > a complete loss of engine power due to a total failure of both magnetos, and the failure of the pilot-in-command to insure that the airplane was airworthy. The dark night and unsuitable terrain were factors.
- [NTSB ATL96LA128](https://openairdocs.org/ntsb/ATL96LA128.md): Piper PA-32-300 · Georgetown, SC · Accident · Minor injuries · Limited investigation · Final report · Sep 19, 1996 · N9VM · Substantial damage
  > failure of maintenance personnel to comply with an airworthiness directive, requiring periodic magneto inspections; inadequate annual inspection of the airplane by (other) maintenance personnel; and subsequent failure of the impulse coupling in the left…
- [NTSB NYC96LA118](https://openairdocs.org/ntsb/NYC96LA118.md): Piper PA-32R · Williamstown, NJ · Accident · No injuries · Limited investigation · Final report · Jun 1, 1996 · N8186G · Substantial damage
  > inadequate maintenance, which resulted in a failure of the magneto housing hold-down flange, a disconnect of the magneto from the engine, and loss of engine power. The obstruction (fence post) in the emergency landing area was a related factor.
- [NTSB ATL96TA047](https://openairdocs.org/ntsb/ATL96TA047.md): Piper PA-32-300 · Windermere, FL · Accident · Minor injuries · Final report · Feb 13, 1996 · N8951N · Substantial damage
  > the use of improper connecting rod bolts, failure of the overhaul facility to record the correct overhaul date on the work orders for the stored connecting rod assemblies, and subsequent failure of the connecting rod bolts.
- [NTSB CHI96FA113](https://openairdocs.org/ntsb/CHI96FA113.md): Piper PA-32 · Milwaukee, WI · Accident · 1 fatal · Field investigation · Final report · Jan 17, 1996 · N3326Q · Destroyed
  > Inadequate maintenance and inspection in that the Airworthiness Directive which applied to the fuel pump had not been complied with. A factor was the pilot was unable to reach land.
- [NTSB NYC96FA012](https://openairdocs.org/ntsb/NYC96FA012.md): Piper PA-31-350 · Atlantic Ocean (Atlantic Ocean) · Accident · 1 fatal · Field investigation · Final report · Oct 19, 1995 · N711EX · Substantial damage
  > a total loss of left engine power as a result of an in-flight separation of the #2 cylinder. The cylinder separated due to high stress fatigue cracking of the cylinder hold down studs and the #3 main bearing thru-studs. Factors in this accident were: improper…
- [NTSB CHI95LA196](https://openairdocs.org/ntsb/CHI95LA196.md): Piper PA-32R · Columbia, MO · Accident · No injuries · Limited investigation · Final report · Jun 23, 1995 · N39620 · Substantial damage
  > A loose (or missing) nut and clip for the bottom magneto stud, due to inadequate maintenance, and fatigue failure of the magneto housing flange, which restulted in an oil leak, engine compartment fire, and a forced landing. A factor relating to the accident…
- [NTSB CHI94LA121](https://openairdocs.org/ntsb/CHI94LA121.md): Piper PA-32-300 · Ellsworth, NE · Accident · No injuries · Limited investigation · Final report · Mar 21, 1994 · N5251S · Substantial damage
  > the jammed impulse coupling on the left magneto which caused the crankshaft drive gear to shear from the crankshaft.
- [NTSB ATL94FA011](https://openairdocs.org/ntsb/ATL94FA011.md): Piper PA-32RT-300T · Wrens, GA · Accident · 5 fatal · Field investigation · Final report · Nov 2, 1993 · N964ST · Destroyed
  > Was the fatique failure of the idler gear which resulted in the complete loss of engine power. A factor was the dark night.
- [NTSB NYC92LA107](https://openairdocs.org/ntsb/NYC92LA107.md): Piper PA-32R-300 · Denton, MD · Accident · No injuries · Limited investigation · Final report · Jun 10, 1992 · N4552X · Substantial damage
  > The failure of the pilot to detect the automobile gasoline in the tanks prior to departure, and intentional refueling with improper fuel by the pilot's brother which resulted in a lose of engine power due to detonation and loss of oil pressure.
- [NTSB FTW92LA008](https://openairdocs.org/ntsb/FTW92LA008.md): Bellanca 17-31 · Big Spring, TX · Accident · Serious injuries · Limited investigation · Final report · Oct 14, 1991 · N9755E · Substantial damage
  > The complete loss of engine power due to a failed piston rod. A factor was the lack of suitable terrain for the forced landing.
- [NTSB ANC92IA001](https://openairdocs.org/ntsb/ANC92IA001.md): Piper PA-31-350 · Fairbanks, AK · Incident · No injuries · Incident investigation · Final report · Oct 2, 1991 · N200AK · Minor damage
  > Incorrect installation of crankshaft counterwweight rollers by the manufacturer during remanufacture of the engine. Factor was the inadequate surveillance of the engine assembly process by the manufacturer.
- [NTSB NYC91LA185](https://openairdocs.org/ntsb/NYC91LA185.md): Piper PA-23-250 · Templeton, MA · Accident · No injuries · Limited investigation · Final report · Jul 22, 1991 · N54819 · Substantial damage
  > Fuel starvation induced power loss on first the left engine due to a failed fuel fitting and then the right engine due to a worn fuel fitting. A factor was the lack of suitable terrain for the forced landing.
- [NTSB LAX91LA315](https://openairdocs.org/ntsb/LAX91LA315.md): Piper PA32-300 · Corona, CA · Accident · 2 fatal · Limited investigation · Final report · Jul 17, 1991 · N5233S · Substantial damage
  > The pilot's failure to maintain an airspeed above the aircraft's stall speed after the engine failed. Factors contributing to the accident were: the failure of the engine, magneto and accessory drive gear, the rough terrain conditions over which the engine…
- [NTSB MIA91LA138](https://openairdocs.org/ntsb/MIA91LA138.md): Piper PA-32-300 · Clearwater, FL · Accident · Minor injuries · Limited investigation · Final report · May 9, 1991 · N55653 · Substantial damage
  > Inadequate annual inspection of the airplane by maintenance personnel who failed to detect a deteriorated oil line. This resulted in oil exhaustion causing the total loss of engine power due to failure of one of the connecting rods. Also inadvertent…
- [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 MIA90FA090](https://openairdocs.org/ntsb/MIA90FA090.md): Butler Aerostar 601 · Lake Butler, FL · Accident · Minor injuries · Field investigation · Final report · Mar 16, 1990 · N7443S · Destroyed
  > Inflight failure of the left engine which was caused by inadequate maintenance and inspection by company maintenance personnel resulting in heat damaged magneto leads as a result of a missing exhaust flange-to-turbocharger seal. In addition, the inflight…
- [NTSB FTW90LA055](https://openairdocs.org/ntsb/FTW90LA055.md): Piper PA-32R-301T · Liberty, TX · Accident · No injuries · Limited investigation · Final report · Jan 14, 1990 · N8128B · Substantial damage
  > Loss of engine power due to failure of the tappet faces. A factor in the accident was the unsuitable terrain in which the forced landing was made.
- [NTSB MKC89LA152](https://openairdocs.org/ntsb/MKC89LA152.md): Piper PA-32-300 · Excelsor Sprgs, MO · Accident · No injuries · Limited investigation · Final report · Jul 4, 1989 · N4175R · Substantial damage
  > The catastrophic failure of the aircraft engine and the pilots failure to maintain directional control of the aircraft during the landing roll. Improper maintenance, the dark night conditions, and restricted visibility due to oil on the windscreen were…
- [NTSB ANC89LA102](https://openairdocs.org/ntsb/ANC89LA102.md): Piper PA-32-300 · Tuntutuliak, AK · Accident · No injuries · Limited investigation · Final report · Jun 23, 1989 · N15306 · Substantial damage
  > Failure of the engine crankshaft. A contributing factor to aircraft damage was a mud (dirt) bank which the aircraft hit during the emergency landing.
- [NTSB MKC89LA080](https://openairdocs.org/ntsb/MKC89LA080.md): Callair A9-B · Fisher, AR · Accident · No injuries · Limited investigation · Final report · Mar 13, 1989 · N7701V · Substantial damage
  > Failure of the engine magneto resulting in engine failure.
- [NTSB LAX89FA014](https://openairdocs.org/ntsb/LAX89FA014.md): Piper PA-32-300 · Sedona, AZ · Accident · 5 fatal · Field investigation · Final report · Oct 16, 1988 · N4113R · Destroyed
  > Total failure of the magneto's impulse coupling which resulted in a shearing of the crankshaft's idler gear teeth and the crankshaft dowel pin.
- [NTSB MIA88LA210](https://openairdocs.org/ntsb/MIA88LA210.md): Piper PA-32R-300 · Atlantic Ocean (Atlantic Ocean) · Accident · No injuries · Limited investigation · Final report · Jun 30, 1988 · N75033 · Destroyed
  > The plt stated that the eng started running rough. He decided to divert to alt aprt 15 miles away. While enroute, the plt stated that he heard a 'clanking' noise and oil sprayed the windsheild. The eng lost all power. The a/c was ditched in the Atlantic Ocean…
- [NTSB MIA88FA178](https://openairdocs.org/ntsb/MIA88FA178.md): Rockwell A9B · Marianna, FL · Accident · Serious injuries · Field investigation · Final report · May 25, 1988 · N7787V · Substantial damage
  > The acft sustained a complete & sudden power loss while engaged in ag operations at low alt. The prop, fwd portion of the crankshaft, cyl head & other eng parts separated from the acft. The acft struck a row of 40 ft trees & crashed to the grnd. An exam of…
- [NTSB ATL88FA110](https://openairdocs.org/ntsb/ATL88FA110.md): Piper PA-32R-300 · Rock Hill, SC · Accident · Serious injuries · Field investigation · Final report · Mar 12, 1988 · N8727E · Destroyed
  > The plt and a certificated pilot/pax departed the Rock Hill apt for a local maint test flt following an engine overhaul and installation. About 10 minutes into the flt, the engine oil pressure dropped to zero and a complete loss of power followed. The plt…
- [NTSB DEN88LA046](https://openairdocs.org/ntsb/DEN88LA046.md): Hiller UH-12E · Vernal, UT · Accident · No injuries · Limited investigation · Final report · Jan 2, 1988 · N400AH · Substantial damage
  > The commercial plt and two passengers were surveying a road route in mountainous terrain. At cruise, the pilot noticed a drop in manifold pressure, followed by a loss of oil pressure. The plt reported that the engine quit. An autorotation to a snow covered…

Next page: https://openairdocs.org/ntsb.md?engine=41533&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 ('41533')
    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=41533&occurrence=351

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