# NTSB investigations, 2012: 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 1 of 2 · 58 cases

## Latest cases

- [NTSB ERA13FA088](https://openairdocs.org/ntsb/ERA13FA088.md): Piper PA-28-160 · Parkton, NC · Accident · 1 fatal · Field investigation · Final report · Dec 16, 2012 · N5714W · Substantial damage
  > The failure of the instrument-rated pilot to maintain control of the airplane while in instrument meteorological conditions after reporting a gyro malfunction. Contributing to the accident was the loss of primary gyro flight instruments due to the failure of…
- [NTSB CEN13FA075](https://openairdocs.org/ntsb/CEN13FA075.md): Hughes 369 · Childress, TX · Accident · 1 fatal · Field investigation · Final report · Nov 27, 2012 · N28MP · Substantial damage
  > The improper maintenance of the helicopter fuel system that resulted in erroneous fuel gauge indications and the pilot’s inadequate fuel management, both of which resulted in fuel exhaustion during a long-line hover. Also causal was the lack of company…
- [NTSB ERA13LA065](https://openairdocs.org/ntsb/ERA13LA065.md): Beech C90A · Roanoke, VA · Accident · No injuries · Limited investigation · Final report · Nov 20, 2012 · N702DK · Substantial damage
  > The failure of the right main landing gear bearing actuator support brackets. Contributing to the accident was the owner's and operator's failure to comply with the airplane manufacturer's mandatory service bulletin and the Federal Aviation Administration's…
- [NTSB ERA13LA058](https://openairdocs.org/ntsb/ERA13LA058.md): Cessna 172RG · Lexington, KY · Accident · No injuries · Limited investigation · Final report · Nov 15, 2012 · N9985B · Substantial damage
  > The rupture of the landing gear’s hydraulic pressure hose, which resulted in the depletion of all of the hydraulic fluid, and the inability of the landing gear to raise or lower. Contributing to the accident was the installation of an unapproved hydraulic…
- [NTSB CEN13WA173](https://openairdocs.org/ntsb/CEN13WA173.md): Swearingen SA226 · Murcia, Spain · Accident · No injuries · Foreign investigation · Nov 13, 2012 · EC-JYC · Minor damage
  > On November 13, 2012, at 1205 coordinated universal time, a Swearingen Fairchild SA-226-TC, Spanish registered EC-JYC, operated by Zorex.org, sustained minor damage during the takeoff roll from the Murcia-San Javier Airport (LELC), Murcia, Spain. Visual…
- [NTSB ERA12IA582](https://openairdocs.org/ntsb/ERA12IA582.md): Learjet 60 · Teterboro, NJ · Incident · No injuries · Incident investigation · Final report · Sep 28, 2012 · N862PA · No damage
  > Failure of the nosewheel steering computer strut servo for reasons that could not be determined or replicated during postincident testing.
- [NTSB CEN12LA659](https://openairdocs.org/ntsb/CEN12LA659.md): Lindstrand Balloons 210S · Albuquerque, NM · Accident · Serious injuries · Limited investigation · Final report · Sep 22, 2012 · N608RR · Minor damage
  > The failure of the balloon envelope parachute vent to properly seat, which resulted in the uncontrolled descent of the balloon. The reason the vent did not properly seat during the accident flight could not be determined because the vent operated properly…
- [NTSB CEN12IA662](https://openairdocs.org/ntsb/CEN12IA662.md): Canadair CL-600 Challenger · Denver, CO · Incident · No injuries · Incident investigation · Final report · Sep 21, 2012 · N125PS · No damage
  > The internal failure of the galley heater mat’s thermostat, which resulted in an overheat condition.
- [NTSB WPR12LA430](https://openairdocs.org/ntsb/WPR12LA430.md): Cessna 150F · Snohomish, WA · Accident · Minor injuries · Limited investigation · Final report · Sep 17, 2012 · N8130F · Substantial damage
  > The failure of the right wheel brake hydraulic line during the landing roll, which rendered the brake system inoperative.
- [NTSB ERA12FA563](https://openairdocs.org/ntsb/ERA12FA563.md): Aerospatiale AS 355F1 · West Windsor, NJ · Accident · 1 fatal · Field investigation · Final report · Sep 15, 2012 · N58020 · Substantial damage
  > Disconnection of the upper rod end from the fore/aft servo due to severely worn threads, which resulted in a loss of control and separation of a main rotor blade during cruise flight. Contributing to the accident were incorrect maintenance procedures and…
- [NTSB ANC12LA106](https://openairdocs.org/ntsb/ANC12LA106.md): Cessna A185F · Denali Park, AK · Accident · No injuries · Limited investigation · Final report · Sep 13, 2012 · N4786Q · Substantial damage
  > The pilot’s failure to maintain clearance from an electric transmission line during the approach to land because he was distracted by the airplane’s broken and deflected landing ski. Contributing to the accident was the in-flight failure of the right ski…
- [NTSB WPR12LA422](https://openairdocs.org/ntsb/WPR12LA422.md): Hawker MK 11 SEA Fury · Reno, NV · Accident · No injuries · Limited investigation · Final report · Sep 11, 2012 · N4434P · Substantial damage
  > The collapse of the right main landing gear due to failure of the landing gear rotary selector valve seal.
- [NTSB DCA12RA143](https://openairdocs.org/ntsb/DCA12RA143.md): Boeing 737 · Mexico City, Mexico · Incident · No injuries · Foreign investigation · Sep 5, 2012 · XA-JOY · Minor damage
  > On September 5, 2012, an Aeromexico Boeing 737-800, registration XA-JOY, experienced heavy vibration during the landing roll and multiple ceiling panels and passenger service units fell down in the aft cabin at Benito Juárez Mexico City International Airport…
- [NTSB ERA12IA550](https://openairdocs.org/ntsb/ERA12IA550.md): Cessna 402C · Nantucket, MA · Incident · No injuries · Incident investigation · Final report · Aug 31, 2012 · N769EA · Minor damage
  > Company maintenance personnel’s failure to comply with the airplane manufacturer’s service instructions by not removing the cracked drag brace from service nor inspecting the repaired drag brace at the appropriate interval, which resulted in the failure of…
- [NTSB DCA12WA131](https://openairdocs.org/ntsb/DCA12WA131.md): Boeing 767 · London, United Kingdom · Incident · No injuries · Foreign investigation · Aug 27, 2012 · N642UA · No damage
  > The United Kingdom Air Accident Investigation Branch (AAIB) has notified the NTSB of an accident involving a Boeing 767 airplane that occurred on August 27, 2012. The NTSB has appointed a U.S. Accredited Representative to assist the AAIB investigation under…
- [NTSB WPR12LA366](https://openairdocs.org/ntsb/WPR12LA366.md): Piper PA-30 B · Scappoose, OR · Accident · No injuries · Limited investigation · Final report · Aug 23, 2012 · N222BP · Substantial damage
  > The failure of the landing gear to fully extend as a result of a failure of the landing gear transmission assembly for reasons that could not be determined based on the available evidence.
- [NTSB CEN12WA646](https://openairdocs.org/ntsb/CEN12WA646.md): Beech A60 · Hyères, France · Accident · No injuries · Foreign investigation · Aug 18, 2012 · N48GC · Substantial damage
- [NTSB CEN12CA567](https://openairdocs.org/ntsb/CEN12CA567.md): Fantasy Air Allegro 2000 · Bear Creek, WI · Accident · No injuries · Data collection · Final report · Aug 17, 2012 · N5064E · Substantial damage
  > A malfunction of the right brake for reasons that could not be determined because of the perishable evidence, which resulted in the pilot’s inability to maintain directional control of the airplane during landing.
- [NTSB CEN12LA557](https://openairdocs.org/ntsb/CEN12LA557.md): Bell 47G-2 · Flandreau, SD · Accident · No injuries · Limited investigation · Final report · Aug 14, 2012 · N444EH · Substantial damage
  > A malfunction of the helicopter’s throttle system, which resulted in a loss of engine power during cruise flight.
- [NTSB CEN12LA531](https://openairdocs.org/ntsb/CEN12LA531.md): Ristine Avid Mark IV · Poplar Grove, IL · Accident · No injuries · Limited investigation · Final report · Aug 9, 2012 · N1328L · Substantial damage
  > The failure of the lower right side longeron tail-spring support area during landing due to excessive corrosion.
- [NTSB ERA12LA494](https://openairdocs.org/ntsb/ERA12LA494.md): Piper PA-44-180 · Titusville, FL · Accident · No injuries · Limited investigation · Final report · Aug 1, 2012 · N740FT · Substantial damage
  > Inadequate maintenance servicing and inspection of the nose landing gear, which resulted in the failure of the nose landing gear to lock and its subsequent collapse during landing.
- [NTSB ERA12LA493](https://openairdocs.org/ntsb/ERA12LA493.md): Sikorsky S-58JT · Middletown, DE · Accident · No injuries · Limited investigation · Final report · Aug 1, 2012 · N126GW · Substantial damage
  > The pilot's failure to recognize that the helicopter was experiencing tail rotor dynamic instability and to take immediate corrective actions during an external load lift, which resulted in the failure of a tail rotor blade.
- [NTSB ANC12IA085](https://openairdocs.org/ntsb/ANC12IA085.md): Bellanca 8KCAB · Homer, AK · Incident · No injuries · Incident investigation · Final report · Jul 29, 2012 · N5026B · Minor damage
  > The failure of the left main landing gear leg due to fatigue. Contributing to the incident was maintenance personnel's failure to completely remove all corrosion before repainting the gear leg.
- [NTSB CEN12IA498](https://openairdocs.org/ntsb/CEN12IA498.md): American Champion 8KCAB · Oshkosh, WI · Incident · No injuries · Incident investigation · Final report · Jul 26, 2012 · N60GK · No damage
  > The failure of the pilot’s seat bottom frame due to the manufacturer’s improper production, installation, and inspection of that seat bottom, which resulted in a temporary loss of control during an air show performance.
- [NTSB ERA12FA484](https://openairdocs.org/ntsb/ERA12FA484.md): Cessna 172M · San Juan, PR · Accident · 1 fatal · Field investigation · Final report · Jul 25, 2012 · N73115 · Substantial damage
  > Maintenance personnel’s improper lubrication of the right direct aileron control cable and failure to detect the severe corrosion of the cable during a maintenance inspection, which resulted in the in-flight failure of the cable, the pilot’s subsequent…
- [NTSB CEN12LA471](https://openairdocs.org/ntsb/CEN12LA471.md): Piper PA-22-150 · Augusta, KS · Accident · Minor injuries · Limited investigation · Final report · Jul 21, 2012 · N4749A · Substantial damage
  > The loss of brake effectiveness on landing roll for reasons that could not be determined because a postaccident brake system examination did not reveal any anomalies, which resulted in a runway excursion.
- [NTSB CEN12LA420](https://openairdocs.org/ntsb/CEN12LA420.md): Cessna T210M · Colorado Springs, CO · Accident · No injuries · Limited investigation · Final report · Jul 20, 2012 · N311TM · Substantial damage
  > The failure of the right hydraulic main gear down-lock actuator hose in flight.
- [NTSB CEN12LA457](https://openairdocs.org/ntsb/CEN12LA457.md): Bombardier CL-600-2C10 · Peoria, IL · Accident · Serious injuries · Limited investigation · Final report · Jul 19, 2012 · N502AE · No damage
  > The emergency ground egress during which a passenger broke her ankle. Contributing to the accident was the failure of the environmental system, which allowed smoke from a nearby house fire to enter the airplane.
- [NTSB CEN12IA451](https://openairdocs.org/ntsb/CEN12IA451.md): Flight Design Ctls · Marysville, OH · Incident · No injuries · Incident investigation · Final report · Jul 16, 2012 · N566FD · Minor damage
  > Fatigue failure of the left main wheel assembly on takeoff, which resulted in a loss of directional control and runway excursion.
- [NTSB CEN12LA492](https://openairdocs.org/ntsb/CEN12LA492.md): Maule M-4 · Springfield, MN · Accident · No injuries · Limited investigation · Final report · Jul 10, 2012 · N12026 · Substantial damage
  > The tailwheel spring's overload failure during landing, resulting in a ground loop and runway excursion.
- [NTSB ERA12LA441](https://openairdocs.org/ntsb/ERA12LA441.md): Piper PA-46-350P · Auburn, AL · Accident · No injuries · Limited investigation · Final report · Jul 6, 2012 · N4133G · Substantial damage
  > The airplane owner’s failure to have maintenance personnel comply with an aircraft manufacturer's service bulletin to require engine mount inspections for fatigue cracks, which resulted in an undetected fatigue crack, the engine mount failing, and the nose…
- [NTSB ERA12LA431](https://openairdocs.org/ntsb/ERA12LA431.md): Leder John A Leder Velocity XL RG · Thomson, GA · Accident · No injuries · Limited investigation · Final report · Jul 2, 2012 · N224SM · Substantial damage
  > Separation of the nose landing gear due to a preexisting fatigue crack caused by an earlier shimmy event and the subsequent incorrect installation of the shimmy dampener.
- [NTSB DCA12IA096](https://openairdocs.org/ntsb/DCA12IA096.md): Airbus A320 · Las Vegas, NV · Incident · No injuries · Incident investigation · Final report · Jun 17, 2012 · N552JB · No damage
  > the failure of the right main landing gear door retraction flexible hydraulic line in the Green hydraulic system, which led to prolonged operation of the power transfer unit and subsequent overheating and loss of pressure in the Yellow hydraulic system,…
- [NTSB CEN12LA349](https://openairdocs.org/ntsb/CEN12LA349.md): Flower Roger P J D · Spring Valley, OH · Accident · 1 fatal · Limited investigation · Final report · Jun 9, 2012 · N9010T · Substantial damage
  > The in-flight failure of the left wing spar, which resulted in the in-flight separation of the left wing.
- [NTSB WPR12LA233](https://openairdocs.org/ntsb/WPR12LA233.md): Grumman Acft ENG Cor-Schweizer G-164A · Wilton, CA · Accident · No injuries · Limited investigation · Final report · May 27, 2012 · N8380 · Substantial damage
  > The failure of the hopper gate mechanism and subsequent sulfur fire during a low-level maneuver.
- [NTSB WPR12LA219](https://openairdocs.org/ntsb/WPR12LA219.md): Enstrom F28 · Twin Falls, ID · Accident · No injuries · Limited investigation · Final report · May 20, 2012 · N63VP · Substantial damage
  > The pilot's inability to maintain helicopter control during cruise flight due to the failure of the No. 2 main rotor Lamiflex bearing. Contributing to the accident was the pilot's decision to operate the helicopter with a known deficiency and the helicopter’s…
- [NTSB ERA12CA350](https://openairdocs.org/ntsb/ERA12CA350.md): Piper PA-22-150 · Norwich, NY · Accident · No injuries · Data collection · Final report · May 19, 2012 · N3956P · Substantial damage
  > The pilot's inability to maintain directional control during a landing with a deflated left main landing gear tire.
- [NTSB CEN12LA298](https://openairdocs.org/ntsb/CEN12LA298.md): Pool Murphy Moose · Steamboat Springs, CO · Accident · Minor injuries · Limited investigation · Final report · May 12, 2012 · N223DH · Substantial damage
  > A locked left brake for reasons that could not be determined because independent observations of the postaccident condition of the airplane could not be performed, and the pilot’s subsequent loss of control.
- [NTSB CEN12LA300](https://openairdocs.org/ntsb/CEN12LA300.md): Cessna T210K · Midland, TX · Accident · No injuries · Limited investigation · Final report · May 9, 2012 · N727FA · Substantial damage
  > The failure of the right main landing gear to fully extend before landing due to a bent downlock adjustment screw.
- [NTSB WPR12FA191](https://openairdocs.org/ntsb/WPR12FA191.md): Hughes 269C · Phoenix, AZ · Accident · Serious injuries · Field investigation · Final report · May 2, 2012 · N380TL · Substantial damage
  > A loss of tail rotor drive due to a fatigue failure of the main transmission pinion, which resulted in a loss of directional control during cruise flight.
- [NTSB CEN12LA265](https://openairdocs.org/ntsb/CEN12LA265.md): Jonker Sailplanes CC JS 1B · Clines Corner, NM · Accident · Minor injuries · Limited investigation · Final report · Apr 29, 2012 · N555AP · Substantial damage
  > The fatigue failure of the rudder cable due to the inadequate design of the rudder pedal system.
- [NTSB ANC12TA035](https://openairdocs.org/ntsb/ANC12TA035.md): Piper PA-18-150 · Paxon, AK · Accident · No injuries · Final report · Apr 28, 2012 · N7059 · Substantial damage
  > A separation of the right main landing gear suspension strut assembly due to overstress, which resulted in the collapse of the main landing gear while landing.
- [NTSB WPR12FA184](https://openairdocs.org/ntsb/WPR12FA184.md): Cessna A185F · Blanding, UT · Accident · 3 fatal · Field investigation · Final report · Apr 25, 2012 · N243W · Substantial damage
  > The pilot's failure to maintain airplane control during low-level maneuvering flight. Contributing to the pilot’s death was the lack of a timely emergency rescue response due to the lack of effective emergency signal transmissions from both the airplane’s…
- [NTSB CEN12LA283](https://openairdocs.org/ntsb/CEN12LA283.md): Beech 58 · Sioux Falls, SD · Accident · No injuries · Limited investigation · Final report · Apr 24, 2012 · N8121R · Substantial damage
  > The failure of the normal and emergency landing gear system to fully retract or extend the landing gear for reasons that could not be determined during postaccident examinations, which resulted in a partial gear-up landing.
- [NTSB ERA12LA299](https://openairdocs.org/ntsb/ERA12LA299.md): Cessna 210 · Gatlinburg, TN · Accident · No injuries · Limited investigation · Final report · Apr 19, 2012 · N96050 · Substantial damage
  > Failure of the nose landing gear down pressure hose, which resulted in the main landing gear being unable to lock and collapse of the main landing gear during the landing roll.
- [NTSB CEN12LA228](https://openairdocs.org/ntsb/CEN12LA228.md): Enstrom 280FX · Corpus Christi, TX · Accident · Minor injuries · Limited investigation · Final report · Apr 3, 2012 · N3042D · Substantial damage
  > The failure of the bolt that retained the clutch drive rod end, which resulted in a loss of main rotor drive and a subsequent hard landing.
- [NTSB ERA12LA273](https://openairdocs.org/ntsb/ERA12LA273.md): Cessna T337B · Dothan, AL · Accident · No injuries · Limited investigation · Final report · Mar 24, 2012 · N2334S · Substantial damage
  > The failure of the landing gear to extend and lock, despite troubleshooting attempts using normal and emergency procedures. The reason for the failure could not be determined because the systems were unavailable for testing.
- [NTSB ENG12IA024](https://openairdocs.org/ntsb/ENG12IA024.md): Beech 1900D · Hays, KS · Incident · No injuries · Incident investigation · Final report · Mar 13, 2012 · N178YV · Minor damage
  > A failure of the nose landing gear end cap due to fatigue. Contributing to the failure were the ineffective inspection and the unknown effect of grain direction on fatigue life.
- [NTSB CEN12CA185](https://openairdocs.org/ntsb/CEN12CA185.md): Cessna 180H · Belle Chase, LA · Accident · No injuries · Data collection · Final report · Mar 11, 2012 · N3424Y · Substantial damage
  > The bent tailwheel spring that allowed the tailwheel to caster when the airplane encountered a wind gust on landing roll.
- [NTSB CEN12LA181](https://openairdocs.org/ntsb/CEN12LA181.md): Sikorsky 269C · Staples, TX · Accident · No injuries · Limited investigation · Final report · Mar 5, 2012 · N1099N · Substantial damage
  > The pilot's failure to attain the proper descent rate during autorotation, which resulted in a hard landing. Contributing to the accident were the inflight vibrations and loss of torque pedal response for undetermined reasons.

Next page: https://openairdocs.org/ntsb-events/330/sequence.md?year=2012&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 year(c."eventDate") = 2012
  AND 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?year=2012

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