# NTSB investigations: Sys/Comp malf/fail (non-power)

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 18 of 20 · 996 cases

## Cases, newest first

- [NTSB WPR09LA372](https://openairdocs.org/ntsb/WPR09LA372.md): Piper PA-30 · Walla Walla, WA · Accident · No injuries · Limited investigation · Final report · Jul 22, 2009 · N7504Y · Substantial damage
  > A tripped landing gear motor circuit breaker, which prevented the gear from fully locking in the down position, and subsequent collapse during landing. Contributing to the accident was the disabled landing gear warning horn.
- [NTSB WPR09LA350](https://openairdocs.org/ntsb/WPR09LA350.md): Bielawa Rotorway E · Sequim, WA · Accident · Minor injuries · Limited investigation · Final report · Jul 16, 2009 · N3213K · Substantial damage
  > The failure (disbonding) of a composite main rotor blade for undetermined reasons, leading to an immediate loss of control in flight during hover.
- [NTSB WPR09CA349](https://openairdocs.org/ntsb/WPR09CA349.md): Evektor-Aerotechnik Sportstar · Snohomish, WA · Accident · No injuries · Data collection · Final report · Jul 15, 2009 · N827EV · Substantial damage
  > A complete loss of engine power due to the failure of the airplane's engine-driven fuel pump.
- [NTSB WPR09LA341](https://openairdocs.org/ntsb/WPR09LA341.md): Piper PA-46-310P · Westley, CA · Accident · No injuries · Limited investigation · Final report · Jul 14, 2009 · N330HT · Substantial damage
  > The failure of the landing gear hydraulic line socket, which resulted in a hydraulic leak and in-flight fire. Contributing to the accident was the failure of the owner and/or maintenance facility to comply with the maintenance manual hose replacement schedule.
- [NTSB CEN09CA493](https://openairdocs.org/ntsb/CEN09CA493.md): Diamond Aircraft Ind DA 40 · Cape Girardeau, MO · Accident · Minor injuries · Data collection · Final report · Jul 14, 2009 · N544DS · Substantial damage
  > The airplane's inoperative brakes while taxiing. Contributing to the accident was the pilot's inadequate preflight.
- [NTSB CEN09CA510](https://openairdocs.org/ntsb/CEN09CA510.md): Wohnoutka Steven M Team Z MAX · Iowa, LA · Accident · No injuries · Data collection · Final report · Jul 4, 2009 · N301SS · Substantial damage
  > A total loss of engine thrust during initial climb due to the failure of the airplane's propeller as a result of preexisting damage.
- [NTSB CEN09LA415](https://openairdocs.org/ntsb/CEN09LA415.md): Cessna 441 · Albuquerque, NM · Accident · No injuries · Limited investigation · Final report · Jul 3, 2009 · N988AE · Substantial damage
  > A malfunction of the landing gear selector switch and a loose fitting on the emergency extension system which rendered the landing gear system inoperable.
- [NTSB CEN09LA417](https://openairdocs.org/ntsb/CEN09LA417.md): Cessna T210L · Santa Teresa, NM · Accident · No injuries · Limited investigation · Final report · Jul 1, 2009 · N2118S · Substantial damage
  > The failure of the landing gear accumulator seal for undetermined reasons. Contributing to the accident was the pilot’s failure to confirm the status of the landing gear.
- [NTSB CEN09IA618](https://openairdocs.org/ntsb/CEN09IA618.md): Bell 230 · Peoria, IL · Incident · No injuries · Incident investigation · Final report · Jul 1, 2009 · N880SF · No damage
  > The loss of the number one hydraulic system fluid and hydraulic pressure during cruise due to the failure of the bolts that secure the hydraulic pump's cover.
- [NTSB CEN09CA382](https://openairdocs.org/ntsb/CEN09CA382.md): Bakeng Deuce · Beach City, TX · Accident · Serious injuries · Data collection · Final report · Jun 24, 2009 · N26MR · Substantial damage
  > The loss of engine power due to fuel starvation resulting from a partially crimped fuel tank vent tube.
- [NTSB WPR09LA307](https://openairdocs.org/ntsb/WPR09LA307.md): Gunnoe Velocity · Livermore, CA · Accident · No injuries · Limited investigation · Final report · Jun 19, 2009 · N92VA · Substantial damage
  > The failure of the right brake due to a restricted brake rotor and subsequent brake fluid line failure as a result of inadequate maintenance.
- [NTSB WPR09LA297](https://openairdocs.org/ntsb/WPR09LA297.md): Bellanca 17-31ATC · Roosevelt, UT · Accident · No injuries · Limited investigation · Final report · Jun 19, 2009 · N14797 · Substantial damage
  > The retraction of the left main landing gear due to the failure of the extension and retraction actuator arm attach bolt. Contributing to the accident was the failure of maintenance personnel to discover the extensive elongation of the actuator attach fitting…
- [NTSB DCA09WA062](https://openairdocs.org/ntsb/DCA09WA062.md): Boeing 767 · North Bay, Canada · Incident · No injuries · Foreign investigation · Jun 19, 2009 · SP-LPA · No damage
  > On June 19, 2009, a Boeing 767-300, registration SP-LPA, operated by LOT Polish Airlines (flight number LOT 2) departed O'Hare International Airport, Chicago, Illinois (ORD) destined for Warsaw, Poland. In the vicinity of North Bay, Ontario, Canada, while…
- [NTSB WPR09LA287](https://openairdocs.org/ntsb/WPR09LA287.md): Howard Long EZ · Placerville, CA · Accident · No injuries · Limited investigation · Final report · Jun 14, 2009 · N7999H · Substantial damage
  > The pilot's inability to maintain directional control during the landing roll due to a jammed brake cable.
- [NTSB WPR09LA290](https://openairdocs.org/ntsb/WPR09LA290.md): Bellanca 14-19 · Columbia, CA · Accident · No injuries · Limited investigation · Final report · Jun 11, 2009 · N6561N · Substantial damage
  > The failure of the left main landing gear drag link as a result of overstress fracture. Contributing to the accident was maintenance personnel's failure to detect a small crack in the left main landing gear drag link during the most recent annual inspection.
- [NTSB ERA09CA327](https://openairdocs.org/ntsb/ERA09CA327.md): Meuer Mark SA900 V ST · Winchester, TN · Accident · No injuries · Data collection · Final report · Jun 6, 2009 · N675MM · Substantial damage
  > The malfunction of the right brake during landing rollout.
- [NTSB CEN09CA343](https://openairdocs.org/ntsb/CEN09CA343.md): Cessna 404 · Englewood, CO · Accident · No injuries · Data collection · Final report · Jun 6, 2009 · N37127 · Substantial damage
  > The failure of the landing gear to extend due to the failure of a hydraulic line.
- [NTSB CEN09LA335](https://openairdocs.org/ntsb/CEN09LA335.md): Cessna 140 · St. Louis, MO · Accident · No injuries · Limited investigation · Final report · Jun 2, 2009 · N76456 · Substantial damage
  > The improper installation of the wing fairing during recent maintenance, which resulted in the partial separation of the fairing shortly after takeoff.
- [NTSB ERA09FA304](https://openairdocs.org/ntsb/ERA09FA304.md): Beech C90A · Yeehaw Junction, FL · Accident · No injuries · Field investigation · Final report · May 25, 2009 · N8001V · Substantial damage
  > The failure of the flightcrew to recognize that both engines were being supplied fuel only from the right wing fuel tanks resulting in loss of power in both engine due to fuel starvation. Contributing to the accident were the inoperative the left auxiliary…
- [NTSB CEN09LA319](https://openairdocs.org/ntsb/CEN09LA319.md): Mileski Zenair · New Hudson, MI · Accident · No injuries · Limited investigation · Final report · May 24, 2009 · N701MW · Substantial damage
  > The pilot's improper flare which resulted in a hard landing and subsequent failure of the nose landing gear.
- [NTSB WPR09LA253](https://openairdocs.org/ntsb/WPR09LA253.md): Gauchat Safari · Rock Springs, AZ · Accident · 2 fatal · Limited investigation · Final report · May 22, 2009 · N147MD · Substantial damage
  > The separation of the main rotor head during cruise flight as a result of cyclic fatigue of the main rotor head spindle. The fatigue crack was due to an inadequate manufacturing process.
- [NTSB WPR09LA245](https://openairdocs.org/ntsb/WPR09LA245.md): Cessna 172N · Desert Center, CA · Accident · No injuries · Limited investigation · Final report · May 16, 2009 · N738LF · Substantial damage
  > A partial loss of engine power due to low compression from an obstructed intake valve. Contributing to the accident was the pilot’s decision to shut down the engine while in flight.
- [NTSB ANC09GA040](https://openairdocs.org/ntsb/ANC09GA040.md): Robinson Helicopter R44 · Iliamna, AK · Accident · No injuries · Final report · May 12, 2009 · N7196H · Substantial damage
  > The main rotor transmission mount design, which resulted in an in-flight vibration/oscillation, and damage to the helicopter during an emergency descent and hard landing. Contributing to the accident was the lack of information from the manufacturer regarding…
- [NTSB WPR09LA236](https://openairdocs.org/ntsb/WPR09LA236.md): Cessna 140 · Mesquite, NV · Accident · No injuries · Limited investigation · Final report · May 10, 2009 · N73017 · Substantial damage
  > The pilot's loss of directional control during landing resulting from binding of the left wheel's brake actuating system for an undetermined reason.
- [NTSB ERA09IA267](https://openairdocs.org/ntsb/ERA09IA267.md): Cessna 402C · Nantucket, MA · Incident · No injuries · Incident investigation · Final report · Apr 27, 2009 · N769EA · Minor damage
  > Installation of an improper bearing in the landing gear actuator.
- [NTSB WPR09LA197](https://openairdocs.org/ntsb/WPR09LA197.md): Raytheon A36 · Lopez Island, WA · Accident · No injuries · Limited investigation · Final report · Apr 16, 2009 · N464TJ · Substantial damage
  > A loss of engine power during cruise flight due to oil starvation. The oil starvation event was due to the failure of maintenance personnel to tighten the aft mounting nuts for the newly installed propeller governor and the pilot’s failure to secure the oil…
- [NTSB ANC09LA032](https://openairdocs.org/ntsb/ANC09LA032.md): Piper PA-14 · Anchorage, AK · Accident · No injuries · Limited investigation · Final report · Apr 15, 2009 · N4246H · Substantial damage
  > The pilot's inability to maintain directional control due to the pilot's seat sliding back during takeoff as a result of maintenance personnel's incorrect installation of the seat's forward track stop.
- [NTSB WPR09LA179](https://openairdocs.org/ntsb/WPR09LA179.md): Cessna 182 · Kalispell, MT · Accident · No injuries · Limited investigation · Final report · Apr 4, 2009 · N6433A · Substantial damage
  > A partial loss of engine power during a go-around for undetermined reasons. Contributing to the accident was a fatigue failure of the right main landing gear spring.
- [NTSB ERA09CA227](https://openairdocs.org/ntsb/ERA09CA227.md): Piper PA-31-325 · Newark, NJ · Accident · No injuries · Data collection · Final report · Apr 2, 2009 · N707AG · Substantial damage
  > The pilot's decision to continue to operate the airplane with inoperative brakes on the airplane's right side.
- [NTSB WPR09LA168](https://openairdocs.org/ntsb/WPR09LA168.md): Cessna 182Q · Sedona, AZ · Accident · No injuries · Limited investigation · Final report · Mar 28, 2009 · N97467 · Substantial damage
  > The pilot's failure to achieve the proper touchdown point during a full-stop landing attempt. Contributing to the accident were the pilot's failure to ensure that the aircraft was properly configured for landing, his not initiating a go-around, and a…
- [NTSB WPR09LA167](https://openairdocs.org/ntsb/WPR09LA167.md): Cessna 180G · Wendover, UT · Accident · No injuries · Limited investigation · Final report · Mar 27, 2009 · N98FC · Substantial damage
  > A loss of directional control during landing as a result of the binding in one main landing gear brake assembly due to incorrect maintenance procedures. Contributing to the accident was the pilot's failure to correctly reconfigure the airplane during an…
- [NTSB CEN09CA232](https://openairdocs.org/ntsb/CEN09CA232.md): Cessna 150D · Madison, IN · Accident · No injuries · Data collection · Final report · Mar 22, 2009 · N5920T · Substantial damage
  > The loss of engine power due to the failure of the engine's muffler which melted and grounded the ignition P-lead wire.
- [NTSB ERA09LA210](https://openairdocs.org/ntsb/ERA09LA210.md): Cessna 310K · Ocala, FL · Accident · No injuries · Limited investigation · Final report · Mar 18, 2009 · N6901L · Substantial damage
  > The right main landing gear collapse as a result of the pilot's improper flare during a previous landing. Contributing to the accident was the flight instructor's inadequate supervision.
- [NTSB WPR09CA134](https://openairdocs.org/ntsb/WPR09CA134.md): Kreps Thorp T-18-C · Palm Springs, CA · Accident · No injuries · Data collection · Final report · Mar 1, 2009 · N118CK · Substantial damage
  > A loss of directional control due to the fatigue failure of a tubular steel gear leg along a corroded weld line.
- [NTSB WPR09CA136](https://openairdocs.org/ntsb/WPR09CA136.md): Piper PA-22-160 · Ogden, UT · Accident · No injuries · Data collection · Final report · Feb 21, 2009 · N8637D · Substantial damage
  > The loss of directional control during the landing roll due to the separation of the tailwheel spring retaining clip for unknown reasons.
- [NTSB CEN09LA170](https://openairdocs.org/ntsb/CEN09LA170.md): Beech B35 · La Luz, NM · Accident · No injuries · Limited investigation · Final report · Feb 21, 2009 · N8799A · Substantial damage
  > A loss of engine power due to fuel starvation as a result of a blockage in the right fuel tank vent.
- [NTSB CEN09LA167](https://openairdocs.org/ntsb/CEN09LA167.md): Beech H35 · Grain Valley, MO · Accident · No injuries · Limited investigation · Final report · Feb 17, 2009 · N7942D · Substantial damage
  > The loss of engine power due to fuel starvation (mechanical). Contributing to the accident was the forced landing on unsuitable terrain.
- [NTSB CEN09CA169](https://openairdocs.org/ntsb/CEN09CA169.md): Piper PA-24-250 · Mineral Wells, TX · Accident · No injuries · Data collection · Final report · Feb 3, 2009 · N5451P · Substantial damage
  > The failure of the airframe and power plant mechanic to ensure proper lubrication of wire cables in the landing gear system during the annual inspection which precluded safe operation of the landing gear system.
- [NTSB WPR09LA100](https://openairdocs.org/ntsb/WPR09LA100.md): Cessna 210A · Henderson, NV · Accident · No injuries · Limited investigation · Final report · Jan 27, 2009 · N210TF · Substantial damage
  > An undetermined failure of the hydraulic power pack to fully extend the main landing gear through both the normal and emergency systems.
- [NTSB WPR09LA098](https://openairdocs.org/ntsb/WPR09LA098.md): Cessna 172S · Oceanside, CA · Accident · Serious injuries · Limited investigation · Final report · Jan 24, 2009 · N562AD · Substantial damage
  > A defective alternator wire splice that resulted in an intermittent electrical system malfunction and erroneous fuel gauge readings, and, a loss of engine power for an undetermined reason.
- [NTSB CEN09LA137](https://openairdocs.org/ntsb/CEN09LA137.md): Beech A36 · Farmington, NM · Accident · No injuries · Limited investigation · Final report · Jan 18, 2009 · N8074P · Substantial damage
  > Collapse of the landing gear during landing due to the incorrect installation of the landing gear actuator. Contributing to the accident was the pilot's failure to initiate the abnormal procedures checklist prior to landing.
- [NTSB WPR09CA094](https://openairdocs.org/ntsb/WPR09CA094.md): Jones Rodney V Wittman TA · Yucca Valley, CA · Accident · No injuries · Data collection · Final report · Jan 16, 2009 · N90086 · Substantial damage
  > A loss of directional control due to a weld joint failure of the left rudder pedal.
- [NTSB WPR09LA082](https://openairdocs.org/ntsb/WPR09LA082.md): Stits Flut-R-Bug SA6B · Los Olivos, CA · Accident · Minor injuries · Limited investigation · Final report · Jan 14, 2009 · N3129 · Substantial damage
  > A loss of engine power for undetermined reasons. Contributing to the accident was the pilot's improper decision to depart from a road with a known unresolved engine problem.
- [NTSB WPR09LA083](https://openairdocs.org/ntsb/WPR09LA083.md): Cessna 172RG · Carson City, NV · Accident · No injuries · Limited investigation · Final report · Jan 10, 2009 · N6272R · Substantial damage
  > The overload failure of the landing gear actuator at an undetermined time.
- [NTSB WPR09LA075](https://openairdocs.org/ntsb/WPR09LA075.md): Czech Aircraft Works Sport Cruiser · Casa Grande, AZ · Accident · No injuries · Limited investigation · Final report · Jan 6, 2009 · N797BS · Substantial damage
  > The pilot's failure to ensure that the canopy was latched prior to takeoff. Contributing to the accident was the inadequate guidance in the Pilot Operating Handbook regarding canopy procedures.
- [NTSB CEN09FA098](https://openairdocs.org/ntsb/CEN09FA098.md): Piper PA-46 · Hayden, CO · Accident · 2 fatal · Field investigation · Final report · Dec 22, 2008 · N46SB · Destroyed
  > The pilot's loss of situational awareness while maneuvering in adverse weather conditions, resulting in spatial disorientation.
- [NTSB WPR09CA059](https://openairdocs.org/ntsb/WPR09CA059.md): Cessna 210 · Sheridan, WY · Accident · No injuries · Data collection · Final report · Dec 17, 2008 · N9619T · Substantial damage
  > Maintenance personnel's failure to reinstall the left front pilot's seat correctly, which resulted in the pilot's loss of control and subsequent impact with a taxiway sign.
- [NTSB CEN09FA094](https://openairdocs.org/ntsb/CEN09FA094.md): Bombardier CL-600-2C10 · Chicago, IL · Incident · No injuries · Field investigation · Final report · Dec 16, 2008 · N511MJ · Minor damage
  > The failure of the left landing gear to extend due to improper maintenance when the landing gear door was replaced. Contributing to the incident was the manufacturer's inadequate maintenance manual instructions.
- [NTSB DCA09IA017](https://openairdocs.org/ntsb/DCA09IA017.md): Bombardier CL-600-2B19 · Philadelphia, PA · Incident · No injuries · Incident investigation · Final report · Dec 14, 2008 · N407AW · Minor damage
  > the failure of the maintenance personnel to properly complete the installation, and the inspection personnel to conduct the proper functional test, of the left main landing gear uplock assembly.
- [NTSB ERA09IA115](https://openairdocs.org/ntsb/ERA09IA115.md): Cessna 402C · Fort Lauderdale, FL · Incident · No injuries · Incident investigation · Final report · Dec 11, 2008 · N522FA · Minor damage
  > The airplane manufacturer's inadequate inspection procedure resulting in undetected fatigue cracking of the main landing gear barrel of the upper barrel and trunnion assembly.

Next page: https://openairdocs.org/ntsb-events/330/sequence.md?page=19

## 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 s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '330' AND s.case_mkey IN (SELECT case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' WHERE "isDefiningEvent"))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb-events/330/sequence?page=18

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