# NTSB investigations: Inflight upset 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 2 of 2 · 74 cases ## Cases, newest first - [NTSB WPR13FA070](https://openairdocs.org/ntsb/WPR13FA070.md): Piper PA-31T1 · Ely, NV · Accident · 2 fatal · Field investigation · Final report · Dec 15, 2012 · N93CN · Destroyed > The pilot’s failure to regain airplane control following a sudden rapid descent during cruise flight, which resulted in an exceedance of the design stress limits of the aircraft and led to an in-flight structural failure. - [NTSB CEN13FA101](https://openairdocs.org/ntsb/CEN13FA101.md): Cessna 501 · Detroit Lakes, MN · Accident · No injuries · Field investigation · Final report · Dec 8, 2012 · N212M · Substantial damage > A loss of airplane control due to an undetermined avionics malfunction and the pilots’ inattention, which resulted in excessive airframe forces during the unusual attitude recovery. The reason for the avionics malfunction could not be determined because… - [NTSB ERA12TA538](https://openairdocs.org/ntsb/ERA12TA538.md): Bell 407 · Bath, NY · Accident · Minor injuries · Final report · Aug 31, 2012 · N11SP · Substantial damage > The pilot's improper recovery from an in-flight upset, which resulted in the main rotor striking and separating the tail boom. Contributing to the accident was the helicopter manufacturer's failure to warn pilots of unanticipated and unequal aft cyclic… - [NTSB ERA12CA521](https://openairdocs.org/ntsb/ERA12CA521.md): Cessna 152 · Deland, FL · Accident · Minor injuries · Data collection · Final report · Aug 21, 2012 · N49054 · Substantial damage > The pilot’s failure to maintain airplane control on final approach in gusting wind conditions. Contributing to the accident was the pilot’s decision to operate in an environment of thunderstorms and rapidly deteriorating weather. - [NTSB CEN12FA487](https://openairdocs.org/ntsb/CEN12FA487.md): Mooney M20TN · Adrian, MI · Accident · No injuries · Field investigation · Final report · Jul 27, 2012 · N411JL · Substantial damage > An initial nose-pitch-up event and out-of-trim condition, the reason for which could not be determined because the examinations of the airplane did not reveal any anomalies that would have precluded normal operation. Contributing to the accident was the… - [NTSB ERA12FA433](https://openairdocs.org/ntsb/ERA12FA433.md): Piper PA-32R-300 · New Site, MS · Accident · 3 fatal · Field investigation · Final report · Jul 8, 2012 · N4386F · Substantial damage > The pilot's decision to operate into a known area of adverse weather, which resulted in the inadvertent penetration of a severe thunderstorm, a subsequent loss of control, and in-flight breakup of the airplane. - [NTSB ERA12FA376](https://openairdocs.org/ntsb/ERA12FA376.md): Hawker Beechcraft A36 · Macon, MS · Accident · 1 fatal · Field investigation · Final report · May 31, 2012 · N976S · Substantial damage > The pilot's decision to continue flight into an area of known thunderstorms, which resulted in an in-flight breakup. Contributing to the accident was the pilot's lack of experience in actual instrument meteorological conditions and his reliance on datalink… - [NTSB WPR12FA203](https://openairdocs.org/ntsb/WPR12FA203.md): M Squared Breese · Whitewater, CA · Accident · 1 fatal · Field investigation · Final report · May 13, 2012 · N51336 · Substantial damage > The pilot’s decision to fly at low altitude in mountainous terrain in the presence of strong wind and turbulence, which resulted in an aerodynamic upset at too low an altitude for recovery. - [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 CEN11LA657](https://openairdocs.org/ntsb/CEN11LA657.md): Cessna P210N · Longview, TX · Accident · No injuries · Limited investigation · Final report · Sep 19, 2011 · N4867K · Substantial damage > The flight's inadvertent encounter with a rare and unforecasted mesoscale gravity wave while on base leg, which resulted in a sudden loss of altitude and subsequent collision with trees. - [NTSB ERA11LA344](https://openairdocs.org/ntsb/ERA11LA344.md): Beech A100 · Gray, TN · Accident · No injuries · Limited investigation · Final report · Jun 15, 2011 · N15L · Substantial damage > An encounter with convectively-induced turbulence and icing, which resulted in an in-flight upset and a loss of airplane control. - [NTSB WPR11FA239](https://openairdocs.org/ntsb/WPR11FA239.md): Brantly B-2B · Weaverville, CA · Accident · 1 fatal · Field investigation · Final report · May 27, 2011 · N222DW · Substantial damage > The student pilot's decision to fly in windy conditions that exceeded his capabilities, which resulted in his subsequent loss of helicopter control. Contributing to the accident was his lack of flight experience in the accident helicopter. - [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 CEN11FA150](https://openairdocs.org/ntsb/CEN11FA150.md): Piper PA 46-350P · Westcliffe, CO · Accident · 2 fatal · Field investigation · Final report · Jan 9, 2011 · N727MC · Substantial damage > The pilot's loss of control following an encounter with moderate to severe weather. - [NTSB WPR11FA059](https://openairdocs.org/ntsb/WPR11FA059.md): Mooney M20R · Hollister, CA · Accident · 1 fatal · Field investigation · Final report · Nov 25, 2010 · VH-PPA · Substantial damage > The pilot did not ensure the airplane was loaded within its weight and balance envelope, which resulted in longitudinal instability and a loss of aircraft control during the initial climb. - [NTSB ERA11LA071](https://openairdocs.org/ntsb/ERA11LA071.md): Cessna 172N · Bluffton, SC · Accident · Minor injuries · Limited investigation · Final report · Nov 21, 2010 · N882AV · Substantial damage > An in-flight upset of undetermined origin resulting in a forced landing. - [NTSB ERA11FA036](https://openairdocs.org/ntsb/ERA11FA036.md): Beech B36TC · Rienzi, MS · Accident · 2 fatal · Field investigation · Final report · Oct 26, 2010 · N8045Y · Substantial damage > The pilot's continued flight into known adverse weather conditions. Contributing to the accident was the air traffic controller's failure to provide precipitation information to the pilot as required. - [NTSB WPR11FA032](https://openairdocs.org/ntsb/WPR11FA032.md): Mooney M20J · Lander, WY · Accident · 4 fatal · Field investigation · Final report · Oct 25, 2010 · N201HF · Substantial damage > The pilot's decision to depart into known adverse weather conditions over mountainous terrain, which required operation near the limits of the airplane's performance capability and which resulted in a loss of airplane control and subsequent ground impact.… - [NTSB CEN10IA453](https://openairdocs.org/ntsb/CEN10IA453.md): Piper PA-32R-301T · Mount Pleasant, TX · Incident · No injuries · Incident investigation · Final report · Aug 1, 2010 · N4184X · No damage > The failure of an aileron control cable due to a seized idler pulley bearing. - [NTSB CEN10LA363](https://openairdocs.org/ntsb/CEN10LA363.md): Embraer EMB-145LR · Pioneer, LA · Accident · Serious injuries · Limited investigation · Final report · Jun 28, 2010 · N601DW · No damage > The inadvertent encounter with convective weather during cruise flight. Contributing to the accident was the flight crew's failure to detect and avoid the thunderstorm cell earlier in the flight, and the failure of air traffic controllers to provide the… - [NTSB WPR10FA133](https://openairdocs.org/ntsb/WPR10FA133.md): Eurocopter EC135 · Cave Creek, AZ · Accident · 5 fatal · Field investigation · Final report · Feb 14, 2010 · N127TS · Substantial damage > The sudden and inadvertent lowering of the collective to near the lower stop, followed by a simultaneous movement of the collective back up and the cyclic control to a nearly full-aft position, which resulted in the main rotor disc diverging from its normal… - [NTSB CEN10CA010](https://openairdocs.org/ntsb/CEN10CA010.md): Aerostar International RX-7 · Albuquerque, NM · Accident · Serious injuries · Data collection · Final report · Oct 5, 2009 · N9126K · Minor damage > The pilot’s failure to maintain adequate clearance from a known obstacle and the pilot’s failure to maintain control of the balloon during the sudden climb following the ejection of the passenger. - [NTSB WPR09CA338](https://openairdocs.org/ntsb/WPR09CA338.md): Bell 206B · Burlington, WA · Accident · No injuries · Data collection · Final report · Jul 11, 2009 · N302PD · Substantial damage > The pilot’s failure to maintain control of the helicopter while attempting to lift off from a trailer. The helicopter subsequently impacted the ground and rolled over. - [NTSB ERA09CA046](https://openairdocs.org/ntsb/ERA09CA046.md): Hilderson Oswald Aventura HP · Weirwood, VA · Accident · No injuries · Data collection · Final report · Oct 31, 2008 · N1932H · Substantial damage > The pilot's failure to maintain control of the airplane following an in-flight encounter with turbulence during approach, which led to a loss of engine power due to fuel starvation, and subsequent forced landing into trees. ## 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" = '271' 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/271/sequence?page=2 --- 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.