# NTSB investigations: 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.

Page 7 of 9 · 410 cases

## Cases, newest first

- [NTSB WPR12FA332](https://openairdocs.org/ntsb/WPR12FA332.md): Piaggio P180 · Henderson, NV · Accident · No injuries · Field investigation · Final report · Jul 28, 2012 · N146SL · Substantial damage
  > The failure of maintenance personnel to properly torque the elevator attachment hardware in accordance with the maintenance manual, which led to the detachment of the elevator. Contributing to the accident were maintenance personnel's failure to identify the…
- [NTSB WPR12CA293](https://openairdocs.org/ntsb/WPR12CA293.md): Piper PA-12 · Stevensville, MT · Accident · No injuries · Data collection · Final report · Jul 4, 2012 · N2870M · Substantial damage
  > The separation of the left rudder control cable from the rudder bellcrank, which resulted in a loss of directional control during landing roll.
- [NTSB ERA12FA395](https://openairdocs.org/ntsb/ERA12FA395.md): Remos Acft Gmbh Flugzeugbau Remos GX · Westminster, MD · Accident · 1 fatal · Field investigation · Final report · Jun 15, 2012 · N206GX · Substantial damage
  > The pilot's inadequate preflight inspection, which failed to ensure that the elevator quick-fastener was properly secured, resulting in an inflight elevator control disconnect and subsequent loss of control during the ensuing emergency landing. Contributing…
- [NTSB ERA12LA379](https://openairdocs.org/ntsb/ERA12LA379.md): Bell 427 · Indiantown, FL · Accident · Minor injuries · Limited investigation · Final report · Jun 4, 2012 · N427AL · Substantial damage
  > The inflight collision with birds, resulting in damage to the rotor head assembly and a subsequent forced landing and rollover.
- [NTSB ERA12LA368](https://openairdocs.org/ntsb/ERA12LA368.md): Schweizer 269C · Piney Flats, TN · Accident · No injuries · Limited investigation · Final report · May 24, 2012 · N760DA · Substantial damage
  > The mechanic’s improper maintenance of the main transmission aft pinion nut and belt drive system, which resulted in the uncoupling of the tail rotor driveshaft and the subsequent loss of helicopter control.
- [NTSB WPR12IA248](https://openairdocs.org/ntsb/WPR12IA248.md): Eurocopter AS 350 B2 · Seattle, WA · Incident · No injuries · Incident investigation · Final report · May 22, 2012 · N105TV · Minor damage
  > Failure of maintenance personnel to ensure that the tail rotor pitch change link bolt was properly secured, which resulted in an in-flight separation of the bolt and subsequent vibration.
- [NTSB ERA12LA307](https://openairdocs.org/ntsb/ERA12LA307.md): Rice Leo B Kitfox Series 5 · Port Canaveral, FL · Accident · No injuries · Limited investigation · Final report · Apr 28, 2012 · N77LR · Substantial damage
  > Impingement of the elevator control by foreign objects (clamp, glove) left in the flight control path by the pilot/owner or maintenance personnel.
- [NTSB WPR12FA155](https://openairdocs.org/ntsb/WPR12FA155.md): Extra Flugzeugbau EA-300 · Salinas, CA · Accident · 2 fatal · Field investigation · Final report · Apr 8, 2012 · N45R · Substantial damage
  > A loose portable XM-GPS antenna that migrated to the tail section of the airplane and jammed the elevator bell crank. Contributing to the accident was the pilot’s failure to account for the cockpit portable GPS antenna during preflight or postflight…
- [NTSB WPR12WA167](https://openairdocs.org/ntsb/WPR12WA167.md): Saab 2000 · Copenhagen, Denmark · Incident · No injuries · Foreign investigation · Mar 20, 2012 · SE-LOM · No damage
  > On March 20, 2012, about 0610 UTC, a Saab 2000, registered in Sweden as SE-LOM, experienced an elevator flight control malfunction during landing at Copenhagen Airport (EKCH), Denmark. None of the three flight crew or 47 passengers were injured. The airplane…
- [NTSB ERA12IA237](https://openairdocs.org/ntsb/ERA12IA237.md): Piper PA-32R-300 · Warrenton, VA · Incident · No injuries · Incident investigation · Final report · Mar 14, 2012 · N1358H · No damage
  > Maintenance personnel's failure to identify stress corrosion cracking in the stabilator control cable during the most recent inspection, and the subsequent failure of the cable on the flight after the inspection.
- [NTSB ERA12CA215](https://openairdocs.org/ntsb/ERA12CA215.md): Cessna 140A · Mooresville, NC · Accident · No injuries · Data collection · Final report · Mar 6, 2012 · N5693C · Substantial damage
  > The separation of the left rudder cable turnbuckle and the pilot’s subsequent loss of directional control during landing.
- [NTSB WPR12LA107](https://openairdocs.org/ntsb/WPR12LA107.md): Bell AH-1F · Coolidge, AZ · Accident · Minor injuries · Limited investigation · Final report · Mar 1, 2012 · N197LE · Substantial damage
  > A flight control malfunction while maneuvering for reasons that could not be determined because postaccident examination revealed no evidence of a mechanical malfunction or failure that would have precluded normal operation.
- [NTSB DCA12CA042](https://openairdocs.org/ntsb/DCA12CA042.md): Embraer EMB120 · Iliamna, AK · Accident · No injuries · Data collection · Final report · Feb 16, 2012 · N1110J · Substantial damage
  > the maintenance personnel's failure to install the cotter pins that secured castellated nuts on the left elevator vertical hinge bolts, which resulted in the left elevator partially detaching in flight. Contributing to the accident was the failure of…
- [NTSB ERA12LA150](https://openairdocs.org/ntsb/ERA12LA150.md): M-Squared Breese 2 · Bayou La Batre, AL · Accident · No injuries · Limited investigation · Final report · Jan 19, 2012 · N582MS · Substantial damage
  > The pilot's inability to maintain control of the airplane for reasons that could not be determined because postaccident examination of the rudder control system did not reveal any anomalies that would have precluded control of the airplane.
- [NTSB DCA12FA024](https://openairdocs.org/ntsb/DCA12FA024.md): Bell 214 · Camp Bastion, Afghanistan · Accident · 3 fatal · Field investigation · Final report · Jan 16, 2012 · N5748M · Destroyed
  > the overtravel of the collective sleeve, which led to a severe and sudden reduction in main rotor blade collective pitch, resulting in a loss of control of the helicopter. The reason for the collective sleeve overtravel could not be determined since much of…
- [NTSB CEN12LA120](https://openairdocs.org/ntsb/CEN12LA120.md): Continental Copters 47G2 · Lohn, TX · Accident · Serious injuries · Limited investigation · Final report · Jan 1, 2012 · N9021R · Substantial damage
  > The improper installation of the tail rotor gearbox by maintenance personnel, which led to accelerated wear of the ring and pinion gears, resulting in the loss of tail rotor effectiveness and subsequent forced landing.
- [NTSB ERA12FA127](https://openairdocs.org/ntsb/ERA12FA127.md): Cessna 650 · Ft. Lauderdale, FL · Accident · No injuries · Field investigation · Final report · Dec 28, 2011 · N877G · Substantial damage
  > The crew's failure to use proper emergency procedures during an uncommanded right roll after takeoff, which led to a forced landing with a quartering tailwind. Contributing to the accident was a faulty right roll spoiler actuator, which allowed the right roll…
- [NTSB CEN12LA114](https://openairdocs.org/ntsb/CEN12LA114.md): Southern Powered Parachute Condor · Rogersville, MO · Accident · Serious injuries · Limited investigation · Final report · Dec 25, 2011 · UNREG · Substantial damage
  > The pilot's inadequate preflight inspection of the takeoff area, which resulted in a loss of control due to the binding of the parachute's lines.
- [NTSB DCA13WA052](https://openairdocs.org/ntsb/DCA13WA052.md): Beech 1900 · Goose Bay, Canada · Incident · No injuries · Foreign investigation · Dec 10, 2011 · C-GLHO · No damage
  > On 10 December 2011, at 1028 Newfoundland Standard Time, an Exploits Valley Air Services Hawker Beechcraft 1900D aircraft (registration C-GLHO, serial number UE-266), operating as Air Canada Express flight EV7645, was conducting a scheduled passenger flight…
- [NTSB ERA12IA097](https://openairdocs.org/ntsb/ERA12IA097.md): Cessna 560XL · Ocoee, FL · Incident · No injuries · Incident investigation · Final report · Dec 2, 2011 · N576CS · No damage
  > Water contamination in the pitch trim actuators.
- [NTSB DCA12WA007](https://openairdocs.org/ntsb/DCA12WA007.md): Boeing 737 - 800 · Faro, Portugal · Accident · No injuries · Foreign investigation · Oct 24, 2011 · EI-DPA · Substantial damage
  > TheAir AccidentInvestigation Unit (AAIU) ofIrelandhas notified the NTSB of an accidentinvolving a B737-8AS that occurred on October 20, 2011. The NTSBhas appointed a U.S. Accredited Representative to assist the AAIU investigationunder the provisions of ICAO…
- [NTSB CEN11CA679](https://openairdocs.org/ntsb/CEN11CA679.md): Waltman Theodore J Moose · Hays, KS · Accident · No injuries · Data collection · Final report · Sep 30, 2011 · N384JP · Substantial damage
  > Rudder flutter due to the design changes to the airplane's horizontal stabilizer.
- [NTSB CEN11LA558](https://openairdocs.org/ntsb/CEN11LA558.md): Piper Aerostar 601P · Alpine, TX · Accident · No injuries · Limited investigation · Final report · Aug 22, 2011 · N8076J · Substantial damage
  > The pilot’s improper flare which resulted in a hard landing. Contributing to the accident was the pilot’s improper decision to fly the airplane with a known mechanical deficiency.
- [NTSB CEN11LA588](https://openairdocs.org/ntsb/CEN11LA588.md): Hendryx Steve/Wiley Ross Super Rebel · La Porte City, IA · Accident · Minor injuries · Limited investigation · Final report · Aug 21, 2011 · N540AF · Substantial damage
  > The improper assembly of the aileron cable by the airplane builder.
- [NTSB CEN11LA542](https://openairdocs.org/ntsb/CEN11LA542.md): T&T Falcon LS · Lee's Summit, MO · Accident · No injuries · Limited investigation · Final report · Aug 1, 2011 · N785TT · Substantial damage
  > A binding condition in the left rudder cable which resulted in a loss of directional control during landing.
- [NTSB ERA11CA375](https://openairdocs.org/ntsb/ERA11CA375.md): Temco GC-1B · Sparta, TN · Accident · No injuries · Data collection · Final report · Jul 2, 2011 · N106S · Substantial damage
  > The improper installation of the right rudder control cable by maintenance personnel, which resulted in the pilot's inability to maintain directional control during takeoff.
- [NTSB CEN11CA438](https://openairdocs.org/ntsb/CEN11CA438.md): Cessna A188 · Castroville, TX · Accident · No injuries · Data collection · Final report · Jun 24, 2011 · N731ST · Substantial damage
  > The pilot's failure to maintain obstacle clearance during the agricultural spraying flight.
- [NTSB CEN11LA414](https://openairdocs.org/ntsb/CEN11LA414.md): Enstrom F-28C-2 · Blair, NE · Accident · No injuries · Limited investigation · Final report · Jun 23, 2011 · N5694A · Substantial damage
  > The failure of a tail rotor pitch change link due to the retaining bolt becoming separated in flight. Contributing to the accident was the pilot’s inadequate preflight inspection.
- [NTSB WPR11LA275](https://openairdocs.org/ntsb/WPR11LA275.md): Buckeye Breeze LX · Montague, CA · Accident · Serious injuries · Limited investigation · Final report · Jun 10, 2011 · N300DN · Minor damage
  > The unintended capture of the parachute bridle on a portion of the airframe during the takeoff roll, which resulted in a misinflated or misaligned parachute and an in-flight loss of control.
- [NTSB ANC11LA041](https://openairdocs.org/ntsb/ANC11LA041.md): Eclipse EA500 · Nome, AK · Accident · No injuries · Limited investigation · Final report · Jun 2, 2011 · N168TT · Substantial damage
  > The pilot landed without lowering the landing gear. Contributing to the accident was the pilot's decision to fly the airplane with an inoperative wing flap system.
- [NTSB CEN11CA326](https://openairdocs.org/ntsb/CEN11CA326.md): Getten Marvin T Quickie Q2 · Albuquerque, NM · Accident · No injuries · Data collection · Final report · May 6, 2011 · N314JF · Substantial damage
  > The pilot's loss of elevator control, due to control stick's counter-weight binding with the airplane's header tank.
- [NTSB WPR11IA213](https://openairdocs.org/ntsb/WPR11IA213.md): Cessna 421B · Truckee, CA · Incident · No injuries · Incident investigation · Final report · May 2, 2011 · N270CS · No damage
  > Fatigue failure of the right flap extend cable during the landing approach.
- [NTSB CEN11CA282](https://openairdocs.org/ntsb/CEN11CA282.md): Delf Tim Zenith CH-701 · Davenport, IA · Accident · No injuries · Data collection · Final report · Apr 12, 2011 · N701YB · Substantial damage
  > The improper installation of the rudder cable to rudder pedal attachment hardware.
- [NTSB CEN11IA286](https://openairdocs.org/ntsb/CEN11IA286.md): Cessna 560XL · Abbeville, LA · Incident · No injuries · Incident investigation · Final report · Apr 8, 2011 · N547CS · No damage
  > The pitch trim control cable failed due to fatigue, rendering the elevator trim inoperative.
- [NTSB CEN11LA275](https://openairdocs.org/ntsb/CEN11LA275.md): Piper PA-32-300 · Oklahoma City, OK · Accident · No injuries · Limited investigation · Final report · Apr 7, 2011 · N31407 · Substantial damage
  > The loss of aircraft control due to the failure of the stabilator control cable turnbuckle.
- [NTSB ERA11IA184](https://openairdocs.org/ntsb/ERA11IA184.md): Cessna 560XL · Haynesville, VA · Incident · No injuries · Incident investigation · Final report · Mar 10, 2011 · N588QS · No damage
  > The manufacturer's inadequate design fix for previously known tailcone stinger water ingestion and retention.
- [NTSB CEN11LA226](https://openairdocs.org/ntsb/CEN11LA226.md): Robinson Helicopter R22 Beta · Bulverde, TX · Accident · No injuries · Limited investigation · Final report · Mar 9, 2011 · N112HE · Substantial damage
  > The in-flight separation of the fuel cap, which impacted the helicopter’s tail rotor and resulted in the loss of tail rotor thrust. Contributing to the accident was the inadequate preflight inspection by both pilots, who did not ensure that the fuel cap was…
- [NTSB CEN11LA200](https://openairdocs.org/ntsb/CEN11LA200.md): Hughes 369D · Henryetta, OK · Accident · No injuries · Limited investigation · Final report · Feb 23, 2011 · N112AS · Substantial damage
  > Failure of the cyclic control system for reasons undetermined.
- [NTSB ERA11LA154](https://openairdocs.org/ntsb/ERA11LA154.md): Cessna 177B · Reading, PA · Accident · No injuries · Limited investigation · Final report · Feb 18, 2011 · N11625 · Substantial damage
  > Inadequate maintenance inspection of the airplane which resulted in a shift of the shock mounted portion of the pilot's instrument panel, causing an interference of the pitch control during takeoff.
- [NTSB CEN11IA156](https://openairdocs.org/ntsb/CEN11IA156.md): Sikorsky 92 · Galliano, LA · Incident · No injuries · Incident investigation · Final report · Jan 19, 2011 · N920AL · Minor damage
  > The misalignment of the retaining washer during routine maintenance, resulting in the subsequent separation of the washer and nut.
- [NTSB ERA11LA117](https://openairdocs.org/ntsb/ERA11LA117.md): Convair 340-71 · Charlotte Amalie · Accident · No injuries · Limited investigation · Final report · Jan 17, 2011 · N8277Q · Substantial damage
  > The captain’s decision to continue the flight with the left engine backfiring, resulting in an engine fire shortly after takeoff. Contributing to the accident were the captain’s decision to continue the flight following a report of black smoke trailing the…
- [NTSB ERA11IA110](https://openairdocs.org/ntsb/ERA11IA110.md): Mooney M20E · St. Petersburg, FL · Incident · No injuries · Incident investigation · Final report · Jan 6, 2011 · N7828V · No damage
  > An inadequately maintained interior cockpit boot, which allowed a flashlight to fall through and subsequently jam the airplane's flight controls. Contributing to the incident was a lack of emphasis by government, industry, and advocacy groups that the…
- [NTSB DCA11IA015](https://openairdocs.org/ntsb/DCA11IA015.md): Boeing 757-223 · Jackson Hole, WY · Incident · No injuries · Class 1 · Incident · Final report · Dec 29, 2010 · N668AA · No damage
  > a manufacturing defect in a clutch mechanism that prevented the speedbrakes from automatically deploying after touchdown, and the captain’s failure to monitor and extend the speedbrakes manually. Also causal was the failure of the thrust reversers to deploy…
- [NTSB WPR11LA081](https://openairdocs.org/ntsb/WPR11LA081.md): Apollo AS-III · Poipu, HI · Accident · No injuries · Limited investigation · Final report · Dec 22, 2010 · N157AP · Substantial damage
  > The pilot's lack of compliance with manufacturer's guidance for care and handling of the aircraft combined with incomplete preflight inspections, which resulted in an undetected material failure of the nose cone.
- [NTSB CEN11IA111](https://openairdocs.org/ntsb/CEN11IA111.md): Cessna 560XL · Birmingham, AL · Incident · No injuries · Incident investigation · Final report · Dec 13, 2010 · N498AB · No damage
  > The manufacturer's inadequate initial design and inadequate subsequent modifications of the tailcone, which allowed moisture to collect and freeze around rudder cables during operations in subfreezing temperatures, resulting in a loss of rudder authority…
- [NTSB CEN11IA108](https://openairdocs.org/ntsb/CEN11IA108.md): Piaggio P180 · Columbus, OH · Incident · No injuries · Incident investigation · Final report · Dec 13, 2010 · N140SL · No damage
  > The failure of water to properly drain through the fuselage drain holes, thus becoming trapped and freezing around the flight control cables, which resulted in the loss of control authority to the airplane's ailerons, elevator, and rudder.
- [NTSB CEN11IA087](https://openairdocs.org/ntsb/CEN11IA087.md): Cessna 560XL · Toledo, OH · Incident · No injuries · Incident investigation · Final report · Dec 1, 2010 · N607QS · No damage
  > The manufacturer's inadequate initial design and subsequent modifications of the tailcone, which allowed moisture to collect and freeze around rudder cables during flight levels above the freezing level and resulted in a loss of rudder authority. Contributing…
- [NTSB CEN11LA048](https://openairdocs.org/ntsb/CEN11LA048.md): Piper PA-32R-301T · Waterloo, IA · Accident · No injuries · Limited investigation · Final report · Oct 29, 2010 · N8370L · Substantial damage
  > The separation of a stabilator control cable turnbuckle due to stress corrosion cracking, which resulted in a loss of airplane control during takeoff.
- [NTSB ERA11LA033](https://openairdocs.org/ntsb/ERA11LA033.md): Rockwell International 112TC · Waynesboro, GA · Accident · No injuries · Limited investigation · Final report · Oct 21, 2010 · N1154J · Substantial damage
  > The pilot’s deliberate exiting of the airplane by parachute while in flight following a reported flight control malfunction that could not be verified.
- [NTSB CEN11WA070](https://openairdocs.org/ntsb/CEN11WA070.md): Bell 212 · Minatitlan Veracruz, Mexico · Accident · 8 fatal · Foreign investigation · Oct 15, 2010 · XA-IUR · Substantial damage
  > The government of Mexico has notified the NTSB of an accident involving a BELL 212 helicopter that occurred on October 15, 2010. The NTSB has appointed a U.S. Accredited Representative to assist the government of Mexico's investigation under the provisions of…

Next page: https://openairdocs.org/ntsb-events/333/sequence.md?page=8

## 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" = '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?page=7

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