# CG/weight distribution - Type: NTSB finding subsection - Path: [Aircraft](https://openairdocs.org/ntsb-findings/01) › [Aircraft oper/perf/capability](https://openairdocs.org/ntsb-findings/0106) › [Aircraft capability](https://openairdocs.org/ntsb-findings/010610) › CG/weight distribution - NTSB code: 01061040 - Cases: 66 - In the probable cause: 54 - Fatal cases: 32 - All cases: https://openairdocs.org/ntsb-findings/01061040/cases.md - Cases with it in the probable cause: https://openairdocs.org/ntsb-findings/01061040/cases.md?cause=1 - Page: https://openairdocs.org/ntsb-findings/01061040 ## Cases per year (in the probable cause / all) - 2008: 3 / 3 - 2009: 2 / 5 - 2010: 3 / 3 - 2011: 1 / 3 - 2012: 1 / 1 - 2013: 4 / 4 - 2014: 7 / 7 - 2015: 8 / 9 - 2016: 5 / 5 - 2017: 3 / 4 - 2018: 6 / 6 - 2019: 4 / 7 - 2020: 2 / 2 - 2021: 2 / 2 - 2022: 0 / 1 - 2023: 3 / 3 - 2024: 0 / 1 ## Defining events in these cases - [Loss of control in flight](https://openairdocs.org/ntsb-events/240): 28 cases - [Aerodynamic stall/spin](https://openairdocs.org/ntsb-events/241): 12 cases - [Aircraft loading event](https://openairdocs.org/ntsb-events/010): 5 cases - [Controlled flight into terr/obj (CFIT)](https://openairdocs.org/ntsb-events/120): 3 cases - [Loss of lift](https://openairdocs.org/ntsb-events/500): 2 cases - [Runway excursion](https://openairdocs.org/ntsb-events/300): 2 cases - [Loss of control on ground](https://openairdocs.org/ntsb-events/230): 2 cases - [Nose over/nose down](https://openairdocs.org/ntsb-events/096): 2 cases - [Collision during takeoff/land](https://openairdocs.org/ntsb-events/490): 1 cases - [Powerplant sys/comp malf/fail](https://openairdocs.org/ntsb-events/340): 1 cases ## Aircraft models (registry) - [Piper PA 46-350P](https://openairdocs.org/model/piper-pa-46-350p): 3 cases - [Dehavilland DHC-3](https://openairdocs.org/model/dehavilland-dhc-3): 3 cases - [Robinson Helicopter R44](https://openairdocs.org/model/robinson-helicopter-r44): 2 cases - [Pilatus PC-12/47E](https://openairdocs.org/model/pilatus-pc-12-47e): 2 cases - [Beech 65-A90](https://openairdocs.org/model/beech-65-a90): 2 cases - [Beech C23](https://openairdocs.org/model/beech-c23): 2 cases - [Socata TBM 700](https://openairdocs.org/model/socata-tbm-700): 1 cases - [Robinson Helicopter R22 BETA](https://openairdocs.org/model/robinson-helicopter-r22-beta): 1 cases - [Raytheon G36](https://openairdocs.org/model/raytheon-g36): 1 cases - [Piper PA-32R-301T](https://openairdocs.org/model/piper-pa-32r-301t): 1 cases ## Other findings in the same cases - [Aircraft control](https://openairdocs.org/ntsb-findings/02063040) (Personnel issues): 37 cases - [Weight/balance calculations](https://openairdocs.org/ntsb-findings/02061015) (Personnel issues): 33 cases - [Decision making/judgment](https://openairdocs.org/ntsb-findings/02041520) (Personnel issues): 28 cases - [Maximum weight](https://openairdocs.org/ntsb-findings/01061035) (Aircraft): 27 cases - [Angle of attack](https://openairdocs.org/ntsb-findings/01062042) (Aircraft): 16 cases - [Airspeed](https://openairdocs.org/ntsb-findings/01062010) (Aircraft): 14 cases - [Pitch control](https://openairdocs.org/ntsb-findings/01062022) (Aircraft): 8 cases - [Tree(s)](https://openairdocs.org/ntsb-findings/03022020) (Environmental issues): 5 cases - [Total experience w/ equipment](https://openairdocs.org/ntsb-findings/02031025) (Personnel issues): 5 cases - [Climb rate](https://openairdocs.org/ntsb-findings/01062035) (Aircraft): 5 cases ## Newest cases - [NTSB ERA24LA230](https://openairdocs.org/ntsb/ERA24LA230), May 26, 2024: Piper PA-28-151 (N33563), Hope Mills, NC, substantial damage. Probable cause: A loss of engine performance due to carbon fouling of three spark plugs that, when combined with the airplane’s high gross weight condition, resulted in a collision with trees and terrain. - [NTSB CEN24FA028](https://openairdocs.org/ntsb/CEN24FA028), Oct 30, 2023: Piper PA46 (N510KC), McCook, NE, substantial damage, 1 fatal. Probable cause: The pilot exceeded the airplane’s critical angle of attack during the initial climb, resulting in an aerodynamic stall from which he could not recover. Contributing to the accident was the pilot’s… - [NTSB ANC23FA074](https://openairdocs.org/ntsb/ANC23FA074), Sep 13, 2023: Piper PA-18-150 (N109T), St. Mary's, AK, substantial damage, 1 fatal. Probable cause: The pilot’s decision to operate the airplane above its maximum certificated gross weight, and his installation of an unapproved external load that degraded takeoff performance and flight… - [NTSB ERA23FA280](https://openairdocs.org/ntsb/ERA23FA280), Jul 2, 2023: Piper PA-32R-300 (N5524F), North Myrtle Beach, SC, destroyed, 5 fatal. Probable cause: The pilot’s loss of control during initial climb, which resulted in an aerodynamic stall and impact with terrain. Contributing to the accident was the pilot’s operation of the airplane above its… - [NTSB ANC22LA035](https://openairdocs.org/ntsb/ANC22LA035), May 24, 2022: Dehavilland DHC-3 (N703TH), Yakutat, AK, substantial damage. Probable cause: The pilot’s failure to determine the actual weight and balance of the airplane before departure, which resulted in the airplane being operated outside of the aft center of gravity limits and the… - [NTSB ERA21FA377](https://openairdocs.org/ntsb/ERA21FA377), Sep 26, 2021: Beech C23 (N3342L), Lansing, WV, substantial damage, 3 fatal. Probable cause: The pilot’s exceedance of the airplane’s critical angle of attack while maneuvering to avoid trees and terrain after takeoff, which resulted in an aerodynamic stall and loss of control. Also causal… - [NTSB WPR21LA110](https://openairdocs.org/ntsb/WPR21LA110), Feb 13, 2021: Dassault FALCON900EX (N823RC), San Diego, CA, substantial damage. Probable cause: The flight crew’s operation of the airplane outside of the manufacturer’s specified weight and balance limitations and with an improper trim setting, which resulted in the airplane’s inability to… - [NTSB ANC20LA077](https://openairdocs.org/ntsb/ANC20LA077), Aug 5, 2020: Cessna 180 (N9712G), Kenai, AK, substantial damage. Probable cause: The pilot’s improper decision to place a passenger and baggage in the rear baggage compartment, which resulted in an aft center of gravity, an increase in directional instability, and affected the… - [NTSB WPR20CA185](https://openairdocs.org/ntsb/WPR20CA185), Jun 17, 2020: Vans RV 6 (N1407W), Clovis, NM, substantial damage. Probable cause: The pilot's improper landing flare which resulted in a hard, bounced landing, and subsequent runway excursion. Contributing to the accident was the airplane’s aft center of gravity at the time of the… - [NTSB CEN20FA022](https://openairdocs.org/ntsb/CEN20FA022), Nov 30, 2019: Pilatus PC12 (N56KJ), Chamberlain, SD, destroyed, 9 fatal. Probable cause: The pilot’s loss of control shortly after takeoff, which resulted in an inadvertent, low-altitude aerodynamic stall. Contributing to the accident was the pilot’s improper loading of the airplane,… NTSB has coded findings and defining events since 2008; earlier cases used its older occurrence and cause codes and aren't counted. Findings: https://openairdocs.org/ntsb-findings.md. Defining events: https://openairdocs.org/ntsb-events.md. Phases of flight: https://openairdocs.org/ntsb-phases.md. Every investigation, filtered by finding, event, phase, state, year or model: https://openairdocs.org/ntsb.md (for example ?state=MI&fatal=1). NTSB's definitions: Accident and incident, 49 CFR 830.2 (https://www.ecfr.gov/current/title-49/subtitle-B/chapter-VIII/part-830/subpart-A/section-830.2), CICTT occurrence categories (PDF) (https://www.ntsb.gov/safety/data/Documents/datafiles/OccurrenceCategoryDefinitions.pdf), CICTT phases of flight (PDF) (https://www.ntsb.gov/safety/data/Documents/datafiles/PhaseofFlightDefinitions.pdf), and NTSB coding manual, before 2008 (PDF) (https://www.ntsb.gov/GILS/Documents/codman.pdf). NTSB publishes no definitions for its findings, only their names. --- 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.