# NTSB investigations, 2011: Part(s) separation from AC

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 DCA12MA020](https://openairdocs.org/ntsb/DCA12MA020.md): Eurocopter France AS350B2 · Las Vegas, NV · Accident · 5 fatal · Class 1 · Major · Final report · Dec 8, 2011 · N37SH · Destroyed
  > Sundance Helicopters’ inadequate maintenance of the helicopter, including (1) the improper reuse of a degraded self-locking nut, (2) the improper or lack of installation of a split pin, and (3) inadequate postmaintenance inspections, which resulted in the…
- [NTSB CEN12FA098](https://openairdocs.org/ntsb/CEN12FA098.md): Socata TB21 · Silverton, CO · Accident · 4 fatal · Field investigation · Final report · Dec 3, 2011 · N25153 · Substantial damage
  > The non-instrument-rated pilot’s decision to embark on a flight through forecasted instrument meteorological conditions (IMC), and his subsequent flight into IMC, which resulted in the pilot’s spatial disorientation and subsequent maneuvering of the airplane…
- [NTSB WPR12LA030](https://openairdocs.org/ntsb/WPR12LA030.md): Piper PA-31T · Cheyenne, WY · Accident · No injuries · Limited investigation · Final report · Nov 8, 2011 · N39EH · Substantial damage
  > The flight crew’s failure to properly latch the cabin door before takeoff.
- [NTSB ERA12CA024](https://openairdocs.org/ntsb/ERA12CA024.md): Cessna 182A · Warrenton, VA · Accident · No injuries · Data collection · Final report · Oct 10, 2011 · N6324B · Substantial damage
  > The pilot did not ensure that the forward door latch was secured prior to initiating the descent.
- [NTSB CEN12FA001](https://openairdocs.org/ntsb/CEN12FA001.md): Robinson Helicopter R66 · Philip, SD · Accident · 1 fatal · Field investigation · Final report · Oct 1, 2011 · N266CY · Destroyed
  > The in-flight separation of the main rotor mast following a mast bumping event. The reason for the mast bumping event could not be determined due to postaccident damage.
- [NTSB WPR11LA412](https://openairdocs.org/ntsb/WPR11LA412.md): Wheeler Vans RV-6A · Albany, OR · Accident · No injuries · Limited investigation · Final report · Aug 28, 2011 · N642DW · Substantial damage
  > The in-flight separation of a propeller blade due to fatigue.
- [NTSB ERA11WA470](https://openairdocs.org/ntsb/ERA11WA470.md): Piper PA30 · Region del Bio Bio, Chile · Accident · 2 fatal · Foreign investigation · Aug 20, 2011 · CC-CTT · Substantial damage
  > On August 20, 2011, at 1650 universal coordinated time, a Piper PA-30, Chilean registration CC-CTT, was substantially damaged when it impacted terrain, after its right wing separated in-flight while maneuvering, over Region del Bio Bio, Chile. The pilot and…
- [NTSB CEN11LA596](https://openairdocs.org/ntsb/CEN11LA596.md): Suminski Walter M Jabiru SP · Columbia, IL · Accident · No injuries · Limited investigation · Final report · Aug 17, 2011 · N284E · Substantial damage
  > Separation of the right main wheel during landing rollout for undetermined reasons.
- [NTSB CEN11LA555](https://openairdocs.org/ntsb/CEN11LA555.md): Piper PA-28-180 · Millsap, TX · Accident · No injuries · Limited investigation · Final report · Aug 7, 2011 · N7689W · Substantial damage
  > A sudden loss of engine thrust due to the separation of a propeller blade in cruise flight due to high cycle fatigue.
- [NTSB WPR11LA352](https://openairdocs.org/ntsb/WPR11LA352.md): Eurocopter AS 350 B3 · Troutdale, OR · Accident · No injuries · Limited investigation · Final report · Jul 27, 2011 · N808LF · Substantial damage
  > The in-flight separation of the tail rotor drive shaft cover as a result of maintenance personnel not ensuring that it was secured after a maintenance inspection; also causal was the pilot’s inadequate preflight inspection of the helicopter.
- [NTSB ERA11FA406](https://openairdocs.org/ntsb/ERA11FA406.md): Mooney M20K · Augusta, GA · Accident · 1 fatal · Field investigation · Final report · Jul 18, 2011 · N777CV · Substantial damage
  > The pilot’s decision to fly the airplane after maintenance personnel advised him that the airplane should not be flown because the pilot provided an incorrect propeller for installation and the subsequent failure of the propeller attachment bolts and the…
- [NTSB CEN11FA479](https://openairdocs.org/ntsb/CEN11FA479.md): Cessna 150L · Silverton, CO · Accident · 2 fatal · Field investigation · Final report · Jul 14, 2011 · N1539Q · Substantial damage
  > The pilot's failure to maintain control of the airplane while operating it at low levels above mountainous terrain and in excess of its maximum allowable gross weight, which resulted in an aerodynamic stall. The pilot's failure to maintain control resulted…
- [NTSB ERA11RA398](https://openairdocs.org/ntsb/ERA11RA398.md): Robinson R66 · Girardot, Colombia · Accident · 2 fatal · Foreign investigation · Jul 12, 2011 · N810AG · Substantial damage
  > On July 12, 2011, about 2041 UTC, or 1541 local, a Robinson Helicopter Company R66, N810AG, registered to Aircraft Guaranty Corporation Trustee, operated by a private individual, collided with terrain near Girardot, Colombia. Visual meteorological conditions…
- [NTSB ERA11LA392](https://openairdocs.org/ntsb/ERA11LA392.md): Robinson Helicopter R22 Beta · West Palm Beach, FL · Accident · Minor injuries · Limited investigation · Final report · Jul 10, 2011 · N10786 · Substantial damage
  > Separation of the auxiliary fuel tank cap, which entered the tail rotor system. Contributing to the accident was the lack of a fuel tank cap restraint.
- [NTSB CEN11LA459](https://openairdocs.org/ntsb/CEN11LA459.md): Wingtip To Wingtip Panzl S-330 · Battle Creek, MI · Accident · No injuries · Limited investigation · Final report · Jul 3, 2011 · N330JK · Substantial damage
  > The inadequate aileron hinge design, which resulted in the in-flight separation of the left aileron following a fatigue failure of the center hinge rod-end.
- [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 WPR11LA273](https://openairdocs.org/ntsb/WPR11LA273.md): Schweizer G-164B · Marysville, CA · Accident · No injuries · Limited investigation · Final report · Jun 21, 2011 · N3627G · Substantial damage
  > The separation of the right main landing gear during takeoff, due to fatigue.
- [NTSB CEN11IA369](https://openairdocs.org/ntsb/CEN11IA369.md): Embraer EMB-145 · Chicago, IL · Incident · No injuries · Incident investigation · Final report · Jun 3, 2011 · N607AE · No damage
  > The overheat and failure the brake during landing due to oxidation of the brake rotors, which went undetected by maintenance personnel. Contributing to the accident was maintenance personnel’s lack of familiarity with detailed brake oxidation inspection…
- [NTSB CEN11LA356](https://openairdocs.org/ntsb/CEN11LA356.md): Bell 206 · Walton, KS · Accident · Minor injuries · Limited investigation · Final report · May 26, 2011 · N1815 · Substantial damage
  > A loss of engine power for undetermined reasons because postaccident examination of the airframe and engine revealed no anomalies.
- [NTSB CEN11CA287](https://openairdocs.org/ntsb/CEN11CA287.md): Air Tractor AT503 · Telephone, TX · Accident · Minor injuries · Data collection · Final report · Apr 13, 2011 · N503AD · Substantial damage
  > The pilot's failure to maintain adequate airspeed which resulted in an aerodynamic stall.
- [NTSB CEN11LA283](https://openairdocs.org/ntsb/CEN11LA283.md): Robinson R22 · Lake Charles, LA · Accident · Minor injuries · Limited investigation · Final report · Apr 10, 2011 · N372LE · Substantial damage
  > The pilot's loss of control of the helicopter while in a hover.
- [NTSB DCA11WA042](https://openairdocs.org/ntsb/DCA11WA042.md): Boeing B737 · Hamburg, Germany · Incident · No injuries · Foreign investigation · Apr 7, 2011 · D-ABEH · Minor damage
  > On April 7, 2011, a Boeing 737-800, German registration D-ABEH, operated by Deutsche Lufthansa, experienced a failure of the nosewheel upon landing at Hamburg Airport, Germany. The flight was a regularly scheduled domestic passenger flight from Koln-Bonn,…
- [NTSB CEN11IA264](https://openairdocs.org/ntsb/CEN11IA264.md): Bombardier CL-600-2B19 · Detroit, MI · Incident · No injuries · Incident investigation · Final report · Mar 30, 2011 · N8505Q · No damage
  > The mechanic's incomplete securing of all the wheel well bin's fasteners, which resulted in separation of the bin from the airplane.
- [NTSB CEN11FA253](https://openairdocs.org/ntsb/CEN11FA253.md): Piper PA46-350P · Monroe, MI · Accident · 3 fatal · Field investigation · Final report · Mar 29, 2011 · N619VH · Substantial damage
  > The pilot's demonstration of poor judgment by attempting a high-speed pass several feet above the runway and his subsequent failure to maintain clearance from the runway.
- [NTSB WPR11CA157](https://openairdocs.org/ntsb/WPR11CA157.md): Aeronca 7EC · Big Bear City, CA · Accident · No injuries · Data collection · Final report · Mar 11, 2011 · N2349E · Substantial damage
  > The pilot's improper maintenance, which resulted in a wheel separating from the airplane during takeoff, and the airplane's subsequent nose over during the landing rollout.
- [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 CEN11GA218](https://openairdocs.org/ntsb/CEN11GA218.md): Hughes 369D · Meeker, CO · Accident · Minor injuries · Final report · Mar 8, 2011 · N131AL · Substantial damage
  > Main rotor contact with the tail boom resulting in tail boom separation.
- [NTSB ERA11WA159](https://openairdocs.org/ntsb/ERA11WA159.md): Robinson R44 · Canne della Battaglia, Italy · Accident · 1 fatal · Foreign investigation · Feb 18, 2011 · F-GUJB · Substantial damage
  > On February 18, 2011, about 0706 universal coordinated time, a Robinson R44, French registration F-GUJB, crashed after an in-flight separation of the tail rotor from the fuselage. The pilot was killed. The flight departed Bari, Italy, for Foggia Airport…
- [NTSB CEN11LA192](https://openairdocs.org/ntsb/CEN11LA192.md): Beech E-90 · Des Moines, IA · Accident · No injuries · Limited investigation · Final report · Feb 15, 2011 · N51DN · Substantial damage
  > The improper installation of the right aileron by maintenance personnel.
- [NTSB CEN11IA235](https://openairdocs.org/ntsb/CEN11IA235.md): Schlichtman Stol CH750 · Cassville, MO · Incident · No injuries · Incident investigation · Final report · Feb 6, 2011 · N904MS · Minor damage
  > The fatigue failure of the propeller hub retaining bolts due to insufficient clamping force.
- [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.

## 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") = 2011
  AND c."mKey" IN (SELECT s.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_events.parquet' s WHERE s."tier2Number" = '338' 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/338/sequence?year=2011

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.