# NTSB investigations, 2014: Flight control sys malf/fail

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.

## Latest cases

- [NTSB ANC15IA006](https://openairdocs.org/ntsb/ANC15IA006.md): Cessna 180J · Nome, AK · Incident · No injuries · Incident investigation · Final report · Dec 20, 2014 · N393B · Minor damage
  > The disengagement and subsequent binding of the right tailwheel steering cable, which disabled the rudder system.
- [NTSB CEN15IA085](https://openairdocs.org/ntsb/CEN15IA085.md): Dassault/Sud FAN JET Falcon · Shreveport, LA · Incident · No injuries · Incident investigation · Final report · Dec 12, 2014 · N827AA · No damage
  > A short in the trim system’s wires and connector, which resulted in the elevator trim being in a full nose-down position.
- [NTSB CEN15IA079](https://openairdocs.org/ntsb/CEN15IA079.md): Cessna T182T · Cahokia, IL · Incident · No injuries · Incident investigation · Final report · Dec 12, 2014 · N93CL · No damage
  > The mechanic’s improper installation of the elevator trim actuator, which resulted in reversed elevator trim control, and his subsequent failure to detect the misrigging of the elevator cables during the postmaintenance inspection.
- [NTSB CEN15IA076](https://openairdocs.org/ntsb/CEN15IA076.md): Cessna 182S · Springfield, IL · Incident · No injuries · Incident investigation · Final report · Dec 10, 2014 · N661SP · Minor damage
  > The improper installation of a doubler patch, which prevented the right flap from actuating and moving properly and led to the subsequent interference with the aileron.
- [NTSB WPR15FA051](https://openairdocs.org/ntsb/WPR15FA051.md): Robinson Helicopter R44 · Bountiful, UT · Accident · 2 fatal · Field investigation · Final report · Dec 2, 2014 · N3234U · Substantial damage
  > The pilot/mechanic's failure to properly secure the pitch link hardware of one main rotor blade to the rotating swash plate, which resulted in the pitch link separating in flight and a subsequent loss of control.
- [NTSB WPR15LA024](https://openairdocs.org/ntsb/WPR15LA024.md): Extra Flugzeugproduktions-Und EA 300/L · Las Vegas, NV · Accident · No injuries · Limited investigation · Final report · Oct 26, 2014 · N763DT · Substantial damage
  > The failure of the rudder cable due to tension overstress as a result of the cable’s strength being compromised by wear damage, which resulted in the flight instructor’s inability to maintain directional control during the landing roll.
- [NTSB ERA15IA008](https://openairdocs.org/ntsb/ERA15IA008.md): Cessna S550 · Tampa, FL · Incident · No injuries · Incident investigation · Final report · Oct 4, 2014 · N550AJ · No damage
  > The lack of flat roller bearings in the two elevator trim tab actuators and maintenance personnel’s inadequate lubrication of the left elevator trim tab actuator, both of which resulted in the overstress fracture of the left internal screw and subsequent…
- [NTSB CEN15WA115](https://openairdocs.org/ntsb/CEN15WA115.md): Rans S7 · Cambaie, Reunion Island, France · Accident · No injuries · Foreign investigation · Aug 12, 2014 · N974GL · Substantial damage
- [NTSB ERA14CA385](https://openairdocs.org/ntsb/ERA14CA385.md): Cote James Rans S 6S · New Berlin, PA · Accident · No injuries · Data collection · Final report · Aug 4, 2014 · N502CW · Substantial damage
  > The passenger's inadvertent interference with the rudder controls during the takeoff.
- [NTSB ERA14CA335](https://openairdocs.org/ntsb/ERA14CA335.md): Alexander Schleicher K 7 · Mocksville, NC · Accident · No injuries · Data collection · Final report · Jul 6, 2014 · N9156 · Substantial damage
  > The pilot's decision to install an additional cushion to elevate his passenger and his failure to insure the cushion would not interfere with the control stick movement resulting in limited movement of the elevator in flight and collision with a fence during…
- [NTSB ANC14FA050](https://openairdocs.org/ntsb/ANC14FA050.md): Piper PA 12 · Anchorage, AK · Accident · 1 fatal · Field investigation · Final report · Jul 2, 2014 · N3512M · Substantial damage
  > The incorrect (reverse) rigging of the elevator control cables, and the pilot’s inadequate preflight inspection, which failed to detect the misrigging.
- [NTSB WPR14LA225](https://openairdocs.org/ntsb/WPR14LA225.md): Emery Mark Rotorway 162F · Merced, CA · Accident · No injuries · Limited investigation · Final report · Jun 4, 2014 · N78291 · Destroyed
  > The helicopter pilot/owner's decision to install a belt type not recommended by the kit manufacturer in the tail rotor drive system using the incorrect tension values, which led to the belt’s in-flight failure and the subsequent loss of tail rotor drive…
- [NTSB ANC14LA035](https://openairdocs.org/ntsb/ANC14LA035.md): Dehavilland DHC-3T · Homer, AK · Accident · No injuries · Limited investigation · Final report · May 30, 2014 · N3125N · Substantial damage
  > The flutter failure of the right elevator servo tab due to the improper fabrication of the servo tab and maintenance personnel’s subsequent failure to detect anomalies with the servo tab.
- [NTSB CEN14IA172](https://openairdocs.org/ntsb/CEN14IA172.md): Cessna 560XL · Traverse City, MI · Incident · No injuries · Incident investigation · Final report · Mar 26, 2014 · N580QS · No damage
  > The inoperative galley drain tube heater, which allowed water within the tube to freeze and led to its failure; the tube’s failure allowed water to drain onto the rudder cables and freeze and resulted in the rudder binding during landing.
- [NTSB WPR14CA136](https://openairdocs.org/ntsb/WPR14CA136.md): Norman Quad City Challenger · Monroe, WA · Accident · No injuries · Data collection · Final report · Mar 13, 2014 · N345MN · Substantial damage
  > The pilot's inadequate construction of the propeller bracket, which resulted in its failure during the initial climb and the propeller subsequently departing the airplane.
- [NTSB CEN14IA121](https://openairdocs.org/ntsb/CEN14IA121.md): Cessna 680 · Wheeling, IL · Incident · No injuries · Incident investigation · Final report · Jan 12, 2014 · N531RC · No damage
  > The disconnection of the left elevator trim driveshaft from the trim actuator due to the elevator trim tab drive pin becoming dislodged, which resulted in full nose-down elevator trim.

## 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") = 2014
  AND c."mKey" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '333' 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/333/sequence?year=2014

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