# NTSB investigations: Continental TSIO-520 series: Airframe/component/system failure/malfunction

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 · 65 cases

## Latest cases

- [NTSB ANC07LA021](https://openairdocs.org/ntsb/ANC07LA021.md): Cessna 402C · Cordova, AK · Accident · No injuries · Limited investigation · Final report · Feb 20, 2007 · N402ET · Substantial damage
  > The failure of the right main landing gear linkage during the landing roll, which resulted in a loss of directional control and the collapse of the right main landing gear. A factor associated with the accident was the failure of company maintenance personnel…
- [NTSB CHI07LA064](https://openairdocs.org/ntsb/CHI07LA064.md): Cessna 414A · Dickinson, ND · Accident · No injuries · Limited investigation · Final report · Feb 1, 2007 · N6631C · Substantial damage
  > The undetermined failure of the emergency landing gear system and the retraction of the right main landing gear during landing.
- [NTSB DEN07CA039](https://openairdocs.org/ntsb/DEN07CA039.md): Cessna T210M · Broomfield, CO · Accident · No injuries · Data collection · Final report · Dec 25, 2006 · N6051N · Substantial damage
  > the failure of the mechanic to comply with the required replacement schedule resulting in the failure of the hydraulic line and the resulting gear up landing.
- [NTSB SEA07LA002](https://openairdocs.org/ntsb/SEA07LA002.md): Cessna 340A · Kalispell, MT · Accident · No injuries · Limited investigation · Final report · Oct 2, 2006 · N1920E · Substantial damage
  > The fracture of the adjusting bellcrank in overstress due to binding in a linkage forward of the bell crank.
- [NTSB DFW06CA175](https://openairdocs.org/ntsb/DFW06CA175.md): Cessna C340A · San Antonio, TX · Accident · No injuries · Data collection · Final report · Jul 5, 2006 · N2745F · Substantial damage
  > The collapse of the left main landing gear as result of the failure of the gear pivot bolt for undetermined reasons.
- [NTSB CHI06LA080](https://openairdocs.org/ntsb/CHI06LA080.md): Cessna 421C · Indianapolis, IN · Accident · No injuries · Limited investigation · Final report · Feb 18, 2006 · N98507 · Substantial damage
  > The main landing gear malfunctioned and failed to extend during the landing approach for an undetermined reason, which resulted in a main gear up landing.
- [NTSB SEA05LA084](https://openairdocs.org/ntsb/SEA05LA084.md): Cessna T210N · Kalispell, MT · Accident · Minor injuries · Limited investigation · Final report · Apr 20, 2005 · N2AK · Destroyed
  > An airborne fire which was fueled by leaking hydraulic fluid (the ignition source for the fire was undetermined) from the landing gear hydraulic system located under the cockpit instrument panel due to inadequate maintenance from other maintenance personnel.…
- [NTSB NYC05IA052](https://openairdocs.org/ntsb/NYC05IA052.md): Cessna 402C · Hyannis, MA · Incident · No injuries · Incident investigation · Final report · Feb 11, 2005 · N403BK · Minor damage
  > The mechanic's inadequate inspection, which failed to discover cracks in the left wing spar around wing station 114.
- [NTSB LAX05LA065](https://openairdocs.org/ntsb/LAX05LA065.md): Cessna T210M · Mesa, AZ · Accident · No injuries · Limited investigation · Final report · Jan 14, 2005 · N761YH · Substantial damage
  > the pilot's failure to use the emergency gear extension procedure to manually extend the landing gear to the down and locked position.
- [NTSB LAX05FA046](https://openairdocs.org/ntsb/LAX05FA046.md): Cessna T207A · Meadview, AZ · Accident · 1 fatal · Field investigation · Final report · Dec 8, 2004 · N1783U · Destroyed
  > a loss of control due to the in-flight separation of the right elevator and elevator trim tab control surfaces. The precipitating reason for the elevator separation could not be resolved as related to the tab foam core issue with the available evidence.
- [NTSB LAX05CA030](https://openairdocs.org/ntsb/LAX05CA030.md): Cessna P210N · Rancho Cordova, CA · Accident · No injuries · Data collection · Final report · Nov 11, 2004 · N6416W · Substantial damage
  > The pilot's failure to refuel the airplane prior to fuel exhaustion, which resulted in a loss of engine power. Contributing factors were the pilot's improper in-flight decision to continue the flight at night after experiencing the total failure of the…
- [NTSB CHI04LA183](https://openairdocs.org/ntsb/CHI04LA183.md): Cessna 340A · Mason City, IA · Accident · No injuries · Limited investigation · Final report · Jul 9, 2004 · N60PP · Substantial damage
  > The proper touchdown point not obtain/maintained by the pilot following a single-engine approach to landing. Contributing factors were the vacuum pump oil leak, the low oil pressure of the propeller control system, and the unfeathered propeller.
- [NTSB LAX04LA230](https://openairdocs.org/ntsb/LAX04LA230.md): Cessna T210M · Santa Rosa, CA · Accident · No injuries · Limited investigation · Final report · May 30, 2004 · N121JR · Substantial damage
  > Maintenance personnel's improper installation and servicing of a retaining ring, which resulted in the failure of the landing gear door actuator and failure of the landing gear extension system during landing.
- [NTSB SEA04FA022](https://openairdocs.org/ntsb/SEA04FA022.md): Beech S35 · Warren, OR · Accident · 4 fatal · Field investigation · Final report · Nov 25, 2003 · N10BX · Destroyed
  > The vacuum pump failure and the pilot's failure to maintain control of the airplane. Factors contributing to the accident included the instrument meteorological weather conditions and the pilot's improper recovery from the descent.
- [NTSB ANC04LA011](https://openairdocs.org/ntsb/ANC04LA011.md): Cessna 402 · Galena, AK · Accident · No injuries · Limited investigation · Final report · Nov 13, 2003 · N402ET · Substantial damage
  > Water contamination and freezing of the landing gear actuator that prevented the extension of the right main landing gear, resulting in a gear-up landing. Factors contributing to the accident were freezing temperatures at the accident location, and inadequate…
- [NTSB CHI03LA159](https://openairdocs.org/ntsb/CHI03LA159.md): Cessna T210N · Tribune, KS · Accident · No injuries · Limited investigation · Final report · Jun 13, 2003 · N210MP · Substantial damage
  > The in-flight separation of the turbocharger exhaust band clamp resulting in an in-flight fire and uncommanded landing gear extension. Also causal was the improper maintenance by unknown personnel.
- [NTSB MIA03IA110](https://openairdocs.org/ntsb/MIA03IA110.md): Cessna 402C · Miami, FL · Incident · No injuries · Incident investigation · Final report · May 22, 2003 · N402DD · No damage
  > The inadequate annual inspection of the airplane by other maintenance personnel for failure to note an incorrect washer was installed securing the upper and lower torque links, resulting in separation of the upper and lower links and subsequent rotation of…
- [NTSB FTW03FA093](https://openairdocs.org/ntsb/FTW03FA093.md): Cessna T210N · Mission, TX · Accident · 3 fatal · Field investigation · Final report · Feb 5, 2003 · N4945Y · Destroyed
  > The pilot's failure to maintain aircraft control, which resulted in his exceeding the airplane's design limitation. Contributing factors were the pilot's decision to fly the airplane with known deficiencies with the attitude indicator, and the failure of the…
- [NTSB LAX03LA075](https://openairdocs.org/ntsb/LAX03LA075.md): Cessna T210L · El Monte, CA · Accident · No injuries · Limited investigation · Final report · Jan 25, 2003 · N732DK · Substantial damage
  > the alternator switch contact failure, which resulted in a complete electrical failure.
- [NTSB LAX03TA048](https://openairdocs.org/ntsb/LAX03TA048.md): Cessna T210L · Agua Caliente, CA · Accident · No injuries · Final report · Dec 9, 2002 · N732HJ · Substantial damage
  > The failure of the right main landing gear actuator during the landing roll, which resulted in a collapse of the right main land gear, and loss of directional control.
- [NTSB DEN02TA011](https://openairdocs.org/ntsb/DEN02TA011.md): Cessna 206 · Casper, WY · Accident · No injuries · Final report · Nov 9, 2001 · N9582G · Substantial damage
  > failure to maintain aircraft control during landing. Contributing factors were the crosswind and gusting wind conditions.
- [NTSB SEA01LA165](https://openairdocs.org/ntsb/SEA01LA165.md): Cessna T210L · Olympia, WA · Accident · No injuries · Limited investigation · Final report · Sep 3, 2001 · N6721M · Substantial damage
  > The inability of the landing gear to fully extend due to the failure of a hydraulic hose in the nose gear extension system.
- [NTSB SEA01LA105](https://openairdocs.org/ntsb/SEA01LA105.md): Cessna T210M · Portland, OR · Accident · No injuries · Limited investigation · Final report · May 27, 2001 · N761DL · Substantial damage
  > A burst hydraulic line and consequent total loss of hydraulic fluid from the landing gear, which disabled landing gear operation.
- [NTSB NYC01FA109](https://openairdocs.org/ntsb/NYC01FA109.md): Beech A-36 · Middletown, RI · Accident · 2 fatal · Field investigation · Final report · Apr 28, 2001 · N55588 · Destroyed
  > The pilot's failure to maintain airspeed while landing.
- [NTSB DEN01LA087](https://openairdocs.org/ntsb/DEN01LA087.md): Mooney M20K · Bountiful, UT · Accident · No injuries · Limited investigation · Final report · Apr 17, 2001 · N921Z · Substantial damage
  > the failure of the airplane's electrical system for an undetermined reason, which resulted in the collapse of the left main gear on landing.
- [NTSB SEA00FA142](https://openairdocs.org/ntsb/SEA00FA142.md): Cessna TU-206G · Pistol Creek, ID · Accident · 1 fatal · Field investigation · Final report · Jul 25, 2000 · N206RA · Destroyed
  > A loss of engine power due to the fracture of the #2 cylinder intake valve stem and the puncturing of the #2 piston dome by the intake valve head. Factors include no suitable landing site within the maneuvering abilities of the aircraft, and coniferous trees…
- [NTSB SEA00LA090](https://openairdocs.org/ntsb/SEA00LA090.md): Cessna T210M · Boise, ID · Accident · No injuries · Limited investigation · Final report · May 25, 2000 · N761VZ · Substantial damage
  > The deterioration and subsequent leakage of a hydraulic line which resulted in the total loss of hydraulic fluid and the inability of the pilot to extend the landing gear into the locked position.
- [NTSB MIA00LA109](https://openairdocs.org/ntsb/MIA00LA109.md): Cessna 402C · Fort Lauderdale, FL · Accident · Minor injuries · Limited investigation · Final report · Mar 16, 2000 · N251RS · Substantial damage
  > Separation of the right main landing gear tire recap during takeoff resulting in the pilot's loss of directional control, the aircraft departing the runway, collapse of the landing gear, and collision with the airport fence.
- [NTSB NYC99IA175](https://openairdocs.org/ntsb/NYC99IA175.md): Piper PA-46-310P · Belmar, NJ · Incident · No injuries · Incident investigation · Final report · Jul 15, 1999 · N121GP · Minor damage
  > The failure of the turbocharger clamp, resulting from improper welding settings during manufacture.
- [NTSB CHI99FA177](https://openairdocs.org/ntsb/CHI99FA177.md): Cessna 340A · Phillipsburg, KS · Accident · 2 fatal · Field investigation · Final report · Jun 8, 1999 · N1372G · Destroyed
  > the pilot not maintaining flying speed. Factors to the accident were the fuel transfer problem of unknown origin.
- [NTSB FTW99FA123](https://openairdocs.org/ntsb/FTW99FA123.md): Cessna 402C · Goldsby, OK · Accident · 1 fatal · Field investigation · Final report · Apr 27, 1999 · N819BW · Destroyed
  > The fatigue failure of the right wing spar as a result of inadequate quality control during manufacture of the spar. A factor was the inadequate inspection of the right wing by maintenance personnel, which failed to detect the crack.
- [NTSB FTW98TA051](https://openairdocs.org/ntsb/FTW98TA051.md): Cessna P210N · Bryce Canyon, UT · Incident · No injuries · Final report · Oct 15, 1997 · N731NX · Minor damage
  > The failure of the resistor (inverter) in the door seal pressurization air pump due to continuous operation. Factors were a failure in the door seal pressurization system, its inadequate design by the manufacturer, its inadequate written instructions for…
- [NTSB LAX97FA143](https://openairdocs.org/ntsb/LAX97FA143.md): Cessna T210N · Grand Canyon, AZ · Accident · 2 fatal · Field investigation · Final report · Apr 3, 1997 · N6172C · Destroyed
  > The pilot's failure to maintain aircraft control due to spatial disorientation and his lack of proficiency in conducting instrument flight. Contributing were the inoperative alternator, cockpit lighting, and vacuum system.
- [NTSB IAD96LA153](https://openairdocs.org/ntsb/IAD96LA153.md): Cessna 188 · Pataskala, OH · Accident · No injuries · Limited investigation · Final report · Sep 25, 1996 · N3619J · Substantial damage
  > deterioration and fuel leakage from an engine fuel hose (with a service life that had been exceed, due to inadequate maintenance), which resulted in an engine compartment fire and subsequent damage to the airplane.
- [NTSB FTW96LA295](https://openairdocs.org/ntsb/FTW96LA295.md): Cessna T210L · Terrell, TX · Accident · No injuries · Limited investigation · Final report · Jul 7, 1996 · N761YL · Substantial damage
  > the mechanic's improper installation of the left main landing gear brake line, which resulted in chaffing and failure of the brake line, loss of hydraulic fluid, and inoperative brake(s).
- [NTSB CHI96FA171](https://openairdocs.org/ntsb/CHI96FA171.md): Cessna 401 · Great Bend, KS · Accident · No injuries · Field investigation · Final report · May 20, 1996 · N701CJ · Substantial damage
  > the failure of the exhaust header. Additional factors include the visual restrictions which prevented a detailed examination of the exhaust system, and the inadequate inspection procedures required in AD 75-23-08 R5.
- [NTSB SEA95LA200](https://openairdocs.org/ntsb/SEA95LA200.md): Cessna 210 · Sunriver, OR · Accident · No injuries · Limited investigation · Final report · Aug 30, 1995 · N5349A · Substantial damage
  > The failure of the landing gear hydraulic drive motor.
- [NTSB CHI95LA096](https://openairdocs.org/ntsb/CHI95LA096.md): Cessna T210N · Rockford, IL · Accident · No injuries · Limited investigation · Final report · Mar 7, 1995 · N6622N · Substantial damage
  > A disconnect of the alternator belt, and failure of the pilot to attain a down and locked condition of the gear with the emergency extension system.
- [NTSB FTW95LA120](https://openairdocs.org/ntsb/FTW95LA120.md): Cessna T210M · Montrose, CO · Accident · No injuries · Limited investigation · Final report · Feb 17, 1995 · N6094B · Substantial damage
  > The bent landing gear emergency extension assembly and the accumulation of airframe ice which interfered with landing gear activation. A factor was the alternator failure for unknown reasons.
- [NTSB CHI95IA052](https://openairdocs.org/ntsb/CHI95IA052.md): Cessna 402 · Saint Louis, MO · Incident · No injuries · Incident investigation · Final report · Dec 6, 1994 · N412RW · Minor damage
  > improper maintenance installation (fuel line fitting)by other maintenance personnel. A factor was the cross threaded fuel line fitting.
- [NTSB FTW92GA227](https://openairdocs.org/ntsb/FTW92GA227.md): Cessna T210L · Spring, TX · Accident · No injuries · Final report · Sep 19, 1992 · N732JF · Substantial damage
  > The pilot under instruction failure to follow the landing checklist and the instructor pilot's inadequate supervision. A factor was the overheated landing gear motor.
- [NTSB ATL92LA133](https://openairdocs.org/ntsb/ATL92LA133.md): Cessna 402B · Tuscaloosa, AL · Accident · No injuries · Limited investigation · Final report · Jun 29, 1992 · N910WT · Substantial damage
  > The improper installation of the emergency exit, by an unknown person, which resulted in its separation, in flight.
- [NTSB MKC89LA163](https://openairdocs.org/ntsb/MKC89LA163.md): Beech 58 · Cedar Rapids, IA · Accident · No injuries · Limited investigation · Final report · Jul 30, 1989 · N1846L · Substantial damage
  > The failure of the pilot in command to maintain alignment with the runway and excessive aircraft control in close proximity to the ground. Contributing to the accident was the pilot's diverted attention which resulted from having to shut down the left engine.
- [NTSB CHI89LA136](https://openairdocs.org/ntsb/CHI89LA136.md): Cessna 335 · Pontiac, MI · Accident · No injuries · Limited investigation · Final report · Jul 14, 1989 · N2706T · Substantial damage
  > Failure of the right main landing gear extension/retraction component resulting from unacceptable loads incurred due to improper adjustment.
- [NTSB LAX89LA233](https://openairdocs.org/ntsb/LAX89LA233.md): Cessna P210N · Los Angeles, CA · Accident · Serious injuries · Limited investigation · Final report · Jul 9, 1989 · N609AC · Destroyed
  > An undertorqued oil line fitting, due to its improper installation by maintenance personnel, which resulted in a loose oil line fitting, an oil line leak, oil exhaustion, and subsequent failure of the engine.
- [NTSB LAX89LA223](https://openairdocs.org/ntsb/LAX89LA223.md): Cessna T210N · Herlong, CA · Accident · Serious injuries · Limited investigation · Final report · Jun 16, 1989 · N4857C · Substantial damage
  > Fuel starvation, after the pilot diverted his attention to an electrical problem, and his failure to reposition the fuel selector switch, either before the engine lost power or during emergency procedures. Factors related to the accident were: the tripped…
- [NTSB BFO88IA065](https://openairdocs.org/ntsb/BFO88IA065.md): Cessna T210R · Washington, DC · Incident · No injuries · Incident investigation · Final report · Jul 2, 1988 · N6286U · Minor damage
  > Improper maintenance resulting in the routing of wire which caused an electrical short and inflight smoke.
- [NTSB ATL88LA105](https://openairdocs.org/ntsb/ATL88LA105.md): Cessna 340A · Lincolnton, NC · Accident · Minor injuries · Limited investigation · Final report · Mar 5, 1988 · N4329C · Substantial damage
  > Just after lift off for a LCL flt, the plt-in-cmd, who was in the right seat, noted the front edge of the nose baggage compt to 'pop open'. He assumed control of the acft and attempted to 'tear drop' a return to the opposite runway. During the maneuver, the…
- [NTSB MIA88LA030](https://openairdocs.org/ntsb/MIA88LA030.md): Cessna T-210N · Tallahassee, FL · Accident · No injuries · Limited investigation · Final report · Nov 10, 1987 · N4612C · Substantial damage
  > During ldg gear extension plt did not get safe down indication. Attempts to use emergency extension pump were unsuccessful. Acft was landed nose gear extended main gear retracted. Post accident inspection of the acft revealed the left main gear down lock…
- [NTSB SEA88LA005](https://openairdocs.org/ntsb/SEA88LA005.md): Cessna 340A · Tacoma, WA · Accident · No injuries · Limited investigation · Final report · Oct 11, 1987 · N37358 · Substantial damage
  > As the plt was taxiing to the active rwy, the acft's right brake became inop due to a loss of hydraulic fluid. Subsequently, the acft went off the side of the taxiway, contd over an embankment & was damaged. The loss of hydraulic fluid was due to a leak in…

Next page: https://openairdocs.org/ntsb.md?engine=17040&occurrence=130&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" = 130))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=17040&occurrence=130

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