NTSB CAROL · Event
Event CHI74FEC14
Aircraft involved
Historical record (pre-1982)
NTSB recorded this accident in the pre-1982 coded-field schema — structured fields rather than free-text narrative. Decoded codes use established NTSB single-letter taxonomies; cause factors remain verbatim pending the Form 6120.4 codebook lookup.
Aircraft
BRANTLY B2 · N2111U
Damage
Substantial
Craft type
Balloon
Classification
Accident
Light condition
Dawn
Weather
VMC
Phase of flight
D1
Operator type
D
Airport
BERZ-MACOMB
Kind of flying
B2
Weather at impact
Sky
CLEAR
Wind
315° / 5 kt
Aircraft history
Serial number
000000000157
Total time
363 hrs
Pilot
Certificate
Commercial
Total hours
3,222
Age
52
Probable cause (from PRE1982.MDB)
IN SIDEWARD FLT TO L.
Investigator remarks
TAIL ROTOR HORIZ SHAFT BEARING.SHAFT SHEARED.T/D
Cause factors
- 78/C/C9 C ROTORCRAFT OTHER Cause
- 88/C/CP C MISCELLANEOUS ACTS,CONDITIONS SHEARED Cause
Decoded against the NTSB Form 6120.4 cause-factor codebook (ct_Pre1982 table). Each row shows the raw triplet, modifier (Cause / Factor / etc.), category, and specific code.
Source: NTSB pre-1982 historical archive. Docket
3 2352.
Source file
NTSB_1973_3_2352.txt.
Modern CAROL record on
data.ntsb.gov ↗.
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Related research
What the literature says.
Academic papers and agency reports matching this event's aircraft type. Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.
- arXiv 2020 · arXiv preprint
Continuation Method with the Trusty Time-stepping Scheme for Linearly Constrained Optimization with Noisy Data
The nonlinear optimization problem with linear constraints has many applications in engineering fields such as the visual-inertial navigation and localization of an unmanned aerial vehicle maintaining…
- NASA NTRS 2019 · Abstract
Certification of a Modified Research Public Aircraft
NASA Ames Research Center has several aircraft that have been modified to conduct aeronautical and scientific research. NASA's purpose is to provide research to improve safety of flight and support sc…
- NASA NTRS 2011 · Reprint (Version printed in journal)
Predicted airframe noise levels for certification flights
A correction is presented for a previously published inconsistency in predicted airframe noise values, which were based on approach velocities lower than those required for FAA certification.
Browse the full corpus — academia portal ↗