NTSB CAROL · Event
Event DEN72AD013
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
BEECH 70 · N1384A
Damage
Destroyed
Craft type
Airplane
Classification
Accident
Light condition
Dawn
Weather
IMC
Phase of flight
D9
Operator type
H
Kind of flying
DQ
Weather at impact
Sky
OVERCAST
Aircraft history
Serial number
0000000LB-18
Total time
1,534 hrs
Pilot
Certificate
Commercial
Total hours
6,000
Age
36
Probable cause (from PRE1982.MDB)
ED,USEAGE UNDET.RECOVERY DATE 9/18/71.
Investigator remarks
LOST CTL DUE AIRFRAME ICING. ACFT DE-ICER EQUIPP
Cause factors
- 82/A/F A WEATHER ICING CONDITIONS-INCLUDES SLEET,FREEZING RAIN,ETC. Cause — pilot/personnel action
- 88/A/74 A MISCELLANEOUS ACTS,CONDITIONS AIRFRAME ICE Cause — pilot/personnel action
- 68/A/F6 A PERSONNEL INADEQUATE/INCORRECT WEATHER BRIEFING Cause — pilot/personnel action
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 2756.
Source file
NTSB_1971_3_2756.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.
- NASA NTRS 2019 · Technical Memorandum (TM)
Analysis of an emergency deceleration and descent of the XB-70-1 airplane due to engine damage resulting from structural failure
Analyzing emergency deceleration and descent of XB-70-1 airplane due to engine damage resulting from structural failure for supersonic transport data
- Embry-Riddle Scholarly Commons 2019 · Journal article (IJAAA)
In-flight Wingtip Folding: Inspiration from the XB-70 Valkyrie
Wingip folding can be used to extend aircraft wingspan, allowing designers to take advantage of reduced induced drag whilst respecting ground operational limitations.
- NASA NTRS 2026 · Technical Memorandum (TM)
Impacts of Reduced Pressure Atmospheres on Environmental Control and Life Support Systems (ECLSS) Architectures
The study found that while nine subsystems are viable without modification at 10.2 psia, only three remain acceptable at 8.2 psia.
- arXiv 2026 · arXiv preprint
Neurosim: A Fast Simulator for Neuromorphic Robot Perception
Neurosim is a fast, real-time, high-performance library for simulating sensors such as dynamic vision sensors, RGB cameras, depth sensors, and inertial sensors.
- NASA NTRS 2025 · Conference Paper
Initial Study of Tailored Trajectory Management for Multi-Vehicle Uncrewed Regional Air Cargo Operations
The primary contribution of this paper is an evaluation of the potential value of a tailored trajectory management (TTM) capability for uncrewed aircraft (UA) operators that is proactive in detecting …
- Embry-Riddle Scholarly Commons 2025 · Journal article (IJAAA)
Generalizing Classification of Pilot Workload: Transfer Learning versus a JEPA-Inspired Transformer Architecture
Within the context of learning, there poses difficulty when objectively measuring human performance. In this work, we investigate the evaluation of human performance via its relation to the individual…
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