# Final NTSB investigations: AiResearch TPE331-5&6SER

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 ERA24LA360](https://openairdocs.org/ntsb/ERA24LA360.md): Beech B100 · Jesup, GA · Accident · No injuries · Class 4 · Limited · Final report · Aug 26, 2024 · N686AC · Substantial damage
  > A hard landing short of the runway threshold, which resulted in a collapse of the left main landing gear and subsequent runway excursion during landing.
- [NTSB ERA24FA209](https://openairdocs.org/ntsb/ERA24FA209.md): Rockwell International 690A · Palmyra, VA · Accident · 2 fatal · Class 3 · Field · Final report · May 5, 2024 · N690BM · Destroyed
  > The pilot’s loss of control following an encounter with structural icing, which resulted in an inflight breakup of the airplane.
- [NTSB CEN23LA303](https://openairdocs.org/ntsb/CEN23LA303.md): Ayres S2R-G6 · Ulysses, KS · Accident · No injuries · Class 4 · Limited · Final report · May 27, 2023 · N4182G · Substantial damage
  > The pilot’s failure to maintain clearance from a cable during spray operations.
- [NTSB CEN18FA107](https://openairdocs.org/ntsb/CEN18FA107.md): Cessna 441 · Rossville, IN · Accident · 3 fatal · Field investigation · Final report · Feb 23, 2018 · N771XW · Destroyed
  > An in-flight loss of control for reasons that could not be determined based on the available evidence.
- [NTSB WPR17LA078](https://openairdocs.org/ntsb/WPR17LA078.md): Swearingen SA226 · Boise, ID · Accident · No injuries · Limited investigation · Final report · Mar 20, 2017 · N158WA · Substantial damage
  > Company maintenance personnel's failure to remove a screwdriver that was left lodged in the windshield wiper area of the forward fuselage during maintenance and subsequently became dislodged on takeoff/initial climb and collided with a left propeller blade.
- [NTSB CEN16LA187](https://openairdocs.org/ntsb/CEN16LA187.md): Beech B100 · Dexter, MO · Accident · No injuries · Limited investigation · Final report · May 10, 2016 · N86TR · Substantial damage
  > A collapse of the right main landing gear for reasons that could not be determined because of the damage to the landing gear system.
- [NTSB CEN16FA146](https://openairdocs.org/ntsb/CEN16FA146.md): Rockwell 690B · Taylor, TX · Accident · 2 fatal · Field investigation · Final report · Apr 9, 2016 · N690TH · Destroyed
  > A loss of control while maneuvering for reasons that could not be determined because postaccident examination did not reveal any mechanical malfunctions or anomalies with the airplane.
- [NTSB GAA15CA303](https://openairdocs.org/ntsb/GAA15CA303.md): Mitsubishi MU 2B-25 · Arvin, CA · Accident · No injuries · Data collection · Final report · Aug 22, 2015 · N553T · Substantial damage
  > The pilot's failure to maintain clearance from trees while taxiing into position for takeoff on a narrow private airstrip, resulting in the left wing striking a tree.
- [NTSB CEN15LA239](https://openairdocs.org/ntsb/CEN15LA239.md): Ayres S2R G6 · Tivoli, TX · Accident · Minor injuries · Limited investigation · Final report · May 20, 2015 · N3300U · Substantial damage
  > The failure of the fuel control unit due to the worn stub shaft spline, which resulted in an engine overspeed. Contributing to the accident was maintenance personnel's inadequate inspection of the fuel control unit.
- [NTSB WPR15CA026](https://openairdocs.org/ntsb/WPR15CA026.md): Rockwell 690B · Mesa, AZ · Accident · No injuries · Data collection · Final report · Oct 23, 2014 · N130TT · Substantial damage
  > The failure of the nose gear tire, which resulted in the vibration of the nose landing gear and subsequent fire to the tire and forward section of the fuselage structure.
- [NTSB WPR15TA002](https://openairdocs.org/ntsb/WPR15TA002.md): Rockwell International 690B · Grass Valley, CA · Accident · No injuries · Final report · Oct 4, 2014 · N700PQ · Substantial damage
  > The pilot’s unstabilized approach and failure to go around and his subsequent failure to maintain directional control during the landing roll.
- [NTSB ERA13FA358](https://openairdocs.org/ntsb/ERA13FA358.md): Rockwell International 690B · East Haven, CT · Accident · 4 fatal · Field investigation · Final report · Aug 9, 2013 · N13622 · Destroyed
  > The pilot's failure to maintain airspeed while banking aggressively in and out of clouds for landing in gusty tailwind conditions, which resulted in an aerodynamic stall and uncontrolled descent.
- [NTSB WPR12LA428](https://openairdocs.org/ntsb/WPR12LA428.md): Rockwell International 690A · Ellensburg, WA · Accident · Minor injuries · Limited investigation · Final report · Sep 16, 2012 · N57112 · Substantial damage
  > The pilot’s failure to avoid a turbulent smoke column, which resulted in an overstress failure of the left aileron control rod.
- [NTSB WPR12MA046](https://openairdocs.org/ntsb/WPR12MA046.md): Rockwell 690 · Apache Junction, AZ · Accident · 6 fatal · Major investigation · Final report · Nov 24, 2011 · N690SM · Destroyed
  > The pilot's failure to maintain a safe ground track and altitude combination for the moonless night visual flight rules flight, which resulted in controlled flight into terrain. Contributing to the accident were the pilot's complacency and lack of situational…
- [NTSB ERA11LA507](https://openairdocs.org/ntsb/ERA11LA507.md): Mitsubishi MU-2B-25 · Atlanta, GA · Accident · No injuries · Limited investigation · Final report · Sep 28, 2011 · N344KL · Substantial damage
  > The improper installation of the nose landing gear strut and subsequent collapse of the nose landing gear during landing.
- [NTSB CEN11CA545](https://openairdocs.org/ntsb/CEN11CA545.md): Ayres S2R-G6 · Forest City, IA · Accident · No injuries · Data collection · Final report · Jul 28, 2011 · N331BF · Substantial damage
  > The pilot's inadequate visual lookout during an aerial application run, which resulted in an in-flight collision with a windmill.
- [NTSB CEN11LA460](https://openairdocs.org/ntsb/CEN11LA460.md): Ayres S2R600 · Pine Bluff, AR · Accident · No injuries · Limited investigation · Final report · Jul 6, 2011 · N3101S · Substantial damage
  > The use of an incorrect mounting bolt by maintenance persons to attach the engine torque sensor, which resulted in an internal failure of the torque sensor and subsequent loss of engine power due to fuel starvation.
- [NTSB WPR09CA403](https://openairdocs.org/ntsb/WPR09CA403.md): Rockwell 690 · Wenatchee, WA · Accident · No injuries · Data collection · Final report · Aug 17, 2009 · N90AT · Substantial damage
  > The pilot’s failure to maintain situational awareness, and thus clearance from objects, while operating at low altitude.
- [NTSB ERA09FA078](https://openairdocs.org/ntsb/ERA09FA078.md): Rockwell International 690B · Rio Grande, PR · Accident · 3 fatal · Field investigation · Final report · Dec 3, 2008 · N318WA · Destroyed
  > The pilot's continued visual flight into instrument meteorological conditions, which resulted in an in-flight collision with terrain.
- [NTSB CHI08CA193](https://openairdocs.org/ntsb/CHI08CA193.md): Ayres S2R-G6 · Kilbourne, IL · Accident · No injuries · Data collection · Final report · Jul 15, 2008 · N3105U · Substantial damage
  > The inadequate preflight planning and preparation and the aborted takeoff not performed by the pilot. Contributing to the accident were the trees and transmission wire.
- [NTSB DFW07CA189](https://openairdocs.org/ntsb/DFW07CA189.md): Mitsubishi MU-2B-36 · Hobby Airport, TX · Accident · Serious injuries · Data collection · Final report · Aug 22, 2007 · N6KF · No damage
  > The failure of the ramp employee to maintain clearance from the rotating propeller. A contributing factor was the prevailing night conditions.
- [NTSB ENG07IA009](https://openairdocs.org/ntsb/ENG07IA009.md): Mitsubishi MU-2B-36 · Chicago, IL · Incident · No injuries · Incident investigation · Final report · Jan 12, 2007 · N950MA · Minor damage
  > Complete loss of No. 2 engine power due to a partial rim failure of the 2nd stage turbine wheel, resulting in No. 2 engine shutdown and turbine debris exiting the side of the engine. The wheel failure mechanism could not be determined due to missing turbine…
- [NTSB CHI05CA072](https://openairdocs.org/ntsb/CHI05CA072.md): Gulfstream American 690C · Indianapolis, IN · Accident · No injuries · Data collection · Final report · Feb 10, 2005 · N840JK · Substantial damage
  > The pilot's failure to maintain directional control during landing touchdown and rollout. Contributing factors were the pilot's inadequate compensation for the crosswind condition, the runway light which the aircraft struck and the muddy grass area…
- [NTSB NYC04FA093](https://openairdocs.org/ntsb/NYC04FA093.md): Mitsubishi MU-2B-36 · Pittsfield, MA · Accident · 1 fatal · Field investigation · Final report · Mar 25, 2004 · N201UV · Substantial damage
  > The pilot's loss of aircraft control for undetermined reasons, which resulted in an inadvertent stall/spin and subsequent impact with the ground.
- [NTSB CHI03LA215](https://openairdocs.org/ntsb/CHI03LA215.md): Ayres S2R-G6 · Esmond, ND · Accident · No injuries · Limited investigation · Final report · Jul 17, 2003 · N3105U · Substantial damage
  > The obstruction of the windshield by the application chemical restricting the pilot's visual lookout, and the pilot's failure to perform an aborted takeoff. Factors contributing to the accident were the leak in the hopper lid and the drainage ditch.
- [NTSB SEA02LA129](https://openairdocs.org/ntsb/SEA02LA129.md): Rockwell International 690A · Crescent Lake, OR · Accident · No injuries · Limited investigation · Final report · Jul 15, 2002 · N690RE · Substantial damage
  > The pilot's failure to maintain proper rate of descent resulting in a hard landing and subsequent nose gear separation. Contributing factors were the turbulent crosswind conditions the pilot encountered just before touchdown.
- [NTSB MIA02FA084](https://openairdocs.org/ntsb/MIA02FA084.md): Mitsubishi MU-2B-35 · Carolina, PR · Accident · 2 fatal · Field investigation · Final report · Apr 15, 2002 · N45BS · Destroyed
  > The failure of the pilot to maintain airspeed (Vs) while maneuvering following inadvertent encounter with clouds resulting in an inadvertent stall and uncontrolled descent and subsequent in-flight collision with trees, a wall, and a building.
- [NTSB MIA01FA206](https://openairdocs.org/ntsb/MIA01FA206.md): Mitsubishi MU-2B-35 · Hilton Head, SC · Accident · 1 fatal · Field investigation · Final report · Aug 1, 2001 · N1VY · Destroyed
  > Improper maintenance/installation and and inadequate inspection of the airplane's flap torque tube joints during routine maintenance by company maintenance personnel, which resulted in the right flap torque tube assembly coupler becoming detached and the…
- [NTSB FTW00LA242](https://openairdocs.org/ntsb/FTW00LA242.md): Mitsubishi MU-2B-35 · Corsicana, TX · Accident · No injuries · Limited investigation · Final report · Aug 24, 2000 · N770MA · Substantial damage
  > the in-flight separation of the propeller blade, which resulted from intergranular corrosion and fatigue cracking.
- [NTSB LAX99LA241](https://openairdocs.org/ntsb/LAX99LA241.md): Rockwell 690B · Monterey, CA · Accident · No injuries · Limited investigation · Final report · Jun 17, 1999 · N480K · Substantial damage
  > The failure of maintenance personnel to properly adjust the drag brace preload during recent landing gear maintenance, which resulted in the overload failure and separation of the hydraulic cylinder attach boss.
- [NTSB FTW98LA197](https://openairdocs.org/ntsb/FTW98LA197.md): Rockwell 690B · Broomfield, CO · Accident · No injuries · Limited investigation · Final report · Apr 24, 1998 · N690ES · Substantial damage
  > Failure of the flight instructor to maintain adequate supervision, and failure of the pilot receiving instruction to maintain directional control that was lost for reasons undetermined. A factor was the concrete culvert.
- [NTSB LAX98IA096](https://openairdocs.org/ntsb/LAX98IA096.md): Beech 100 · Reno, NV · Incident · No injuries · Incident investigation · Final report · Feb 23, 1998 · N236CP · No damage
  > Ice formation around the elevator control cables due to plugged limbers and a water drain hole.
- [NTSB LAX97LA132](https://openairdocs.org/ntsb/LAX97LA132.md): Beech 100 · San Carlos, CA · Accident · No injuries · Limited investigation · Final report · Mar 27, 1997 · N60TJ · Substantial damage
  > the pilot's improper flare, which resulted in a hard landing; his improper adjustment of the landing gear warning horn squat switch(es); and his decision to attempt flight with known equipment deficiencies.
- [NTSB LAX96LA196](https://openairdocs.org/ntsb/LAX96LA196.md): Ayres S2R-G6 · Williams, CA · Accident · No injuries · Limited investigation · Final report · May 11, 1996 · N447AT · Substantial damage
  > The pilot's failure to maintain directional control during a rejected takeoff, and the catastrophic failure of the engine's turbine section due to an improper overhaul procedure. A factor in the accident was the close proximity of the drainage ditch to the…
- [NTSB FTW94LA159](https://openairdocs.org/ntsb/FTW94LA159.md): Ayres S2R-G6 · De Witt, AR · Accident · No injuries · Limited investigation · Final report · May 16, 1994 · N448AT · Substantial damage
  > A stall/mush into terrain after the pilot inadvertently raised the flaps.
- [NTSB FTW92FA099](https://openairdocs.org/ntsb/FTW92FA099.md): Rockwell 690A · Taos, NM · Accident · 1 fatal · Field investigation · Final report · Mar 30, 1992 · N111FL · Destroyed
  > The pilot in command's failure to maintain the climb after departing the runway environment. Factors were the weather conditions and the dark night.
- [NTSB LAX88LA218](https://openairdocs.org/ntsb/LAX88LA218.md): Rockwell 690C · Hayward, CA · Accident · No injuries · Limited investigation · Final report · Jun 8, 1988 · N47TT · Substantial damage
  > At the end of a cross country flight, while on final approach to the runway, the right engine quit. Shortly thereafter, the left engine quit. The pilot made a forced landing in a field short of the runway where during the landing roll the airplane collided…
- [NTSB DEN88LA005](https://openairdocs.org/ntsb/DEN88LA005.md): Rockwell 690B · Albuquerque, NM · Accident · Serious injuries · Limited investigation · Final report · Oct 8, 1987 · N711TT · Destroyed
  > Acft was landing on rwy 17 at coronado airport, 9 NM n of Albuquerque, NM intl arpt. Plt said he brought props into reverse and acft went off right side of rwy. Plt brought props out of reverse, realigned acft on rwy, and reversed props again. Acft went off…
- [NTSB SEA86LA067](https://openairdocs.org/ntsb/SEA86LA067.md): Gulfstream 690C · Ketchikan, AK · Accident · No injuries · Limited investigation · Final report · Feb 27, 1986 · N840SM · Substantial damage
  > While at 4700 ft MSL, on a DME hold awaiting clearance for an ils/dme apch, severe turbulence was encountered. The plt was aware of turbulence in the area.
- [NTSB CHI86FA007](https://openairdocs.org/ntsb/CHI86FA007.md): Gulfstream 690A · Cadillac, MI · Accident · 2 fatal · Field investigation · Final report · Oct 10, 1985 · N254PW · Destroyed
  > The acft was cleared for an NDB approach to Cadillac. The wkwas 300 ft ovcst, 1 mile vis. Shortly after cancelling IFR the acft crashed on the opposite side of the arpt from the approach end of the rwy. The pilot activated rwy lights were never turned on…
- [NTSB MIA85IA203](https://openairdocs.org/ntsb/MIA85IA203.md): Mitsubishi MU-2K · San Juan, PR · Incident · No injuries · Incident investigation · Final report · Jun 24, 1985 · N7DD · Minor damage
  > After departure the nose gear unsafe light remained illuminated peter gear retraction. Attempts to get a safe light on the nose gear in the extended position was unsuccessful and when the aircraft landed it settled onto a partially retracted nose gear.…
- [NTSB FTW85LA042](https://openairdocs.org/ntsb/FTW85LA042.md): Cessna 441 · Grand Chenier, LA · Accident · Minor injuries · Limited investigation · Final report · Nov 10, 1984 · N441ST · Substantial damage
  > The pilot told the cameron parrish sheriff that he was attempting to land the aircraft at a small agricultural landing strip after one of the two engines quit due to fuel starvation. The pilot stated that there was nothing wrong with the aircraft except that…
- [NTSB ANC81DA045](https://openairdocs.org/ntsb/ANC81DA045.md): C.A.S.A. C-212 · Kipnuk, AK · Accident · No injuries · Closed · Apr 18, 1981 · N99TF · Substantial damage
- [NTSB CHI81FET04](https://openairdocs.org/ntsb/CHI81FET04.md): Mitsubishi MU-2B · Wabash, IN · Accident · No injuries · Closed · Jan 21, 1981 · N770MA · Substantial damage
- [NTSB ANC81IA011](https://openairdocs.org/ntsb/ANC81IA011.md): C.A.S.A. C-212 · Deadhorse, AK · Incident · Minor injuries · Closed · Dec 17, 1980 · N99TF · No damage
- [NTSB CHI75FEE09](https://openairdocs.org/ntsb/CHI75FEE09.md): Aero Comdr 690A · Rockford, IL · Accident · No injuries · Closed · Aug 8, 1974 · N690WC · Substantial damage

## 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."completionStatus" = 'Completed'
  AND c."mKey" IN (SELECT x.case_mkey FROM 'https://openairdocs.org/data/latest/ntsb_aircrafts.parquet' x WHERE x.engine_model_code IN ('01515'))
ORDER BY c."eventDate" DESC, c."ntsbNumber" DESC
```

This list as a web page: https://openairdocs.org/ntsb?engine=01515&status=final

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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.