NTSB CAROL · Event
Event CHI69A0077
Registry · N4056V
FAA Aircraft Registry record.
Make / Model
ROBINSON HELICOPTER R44
Year of manufacture
2023
TCDS
H11NM · ROBINSON HELICOPTER CO
Engine
LYCOMING O-540-F1B5 (260 hp)
Seats / Engines
4 seats · 1 engine
Last airworthiness date
20230419
ADS-B equipped
Yes — Mode-S A4C272
Registrant of record
HILLSBORO AERO ACADEMY LLC
Source: FAA Aircraft Registry (releasable master file).
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
CESSNA 170 · N4056V
Damage
Destroyed
Craft type
Airplane
Classification
Accident
Light condition
E
Weather
VMC
Phase of flight
Takeoff — initial climb (C1)
Operator type
D
Airport
BIG BEAVER
Kind of flying
B0
Weather at impact
Sky
CLEAR
Aircraft history
Total time
1,761 hrs
Pilot
Certificate
Commercial — instrument
Total hours
350
Age
50
Probable cause (from PRE1982.MDB)
LOOD ALCOHOL LVL .17 PCT.CO-P BLOOD ALC LVL .16PCT
Investigator remarks
UNCERTIFICATED PLT IN L SEAT,NO REPTD TIME.PLT B
Cause factors
- 74/C/KA C POWERPLANT POWERPLANT FAILURE FOR UNDETERMINED REASONS Cause
- 64/B/16 B PILOT IN COMMAND FAILED TO OBTAIN/MAINTAIN FLYING SPEED
- 64/B/65 B PILOT IN COMMAND PHYSICAL IMPAIRMENT
- 88/B/67 B MISCELLANEOUS ACTS,CONDITIONS ALCOHOLIC IMPAIRMENT OF EFFICIENCY AND JUDGMENT
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 0398.
Source file
NTSB_1969_3_0398.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 · Abstract
Wetting Angle and Surface Tension of Germanium Melts on Different Substrate Materials
The sessile drop technique has been used to measure the wetting angle and the surface tension of molten germanium (Ge) on various substrate materials.
- NASA NTRS 2019 · Abstract
Determination of the Wetting Angle of Germanium and Germanium-Silicon Melts on Different Substrate Materials
During Bridgman growth of semiconductors detachment of the crystal and the melt meniscus has occasionally been observed, mainly under microgravity (microg) conditions.
- NASA NTRS 2019 · Abstract
Contact Angles and Surface Tension of Germanium-Silicon Melts
Precise knowledge of material parameters is more and more important for improving crystal growth processes. Two important parameters are the contact (wetting) angle and the surface tension, determinin…
- arXiv 2019 · arXiv preprint
Heat and water vapor transfer in the wake of a falling ice sphere and its implication for secondary ice formation in clouds
We perform direct numerical simulations of the settling of an ice sphere in an ambient fluid accounting for heat and mass transfer with the aim of studying in a meteorological context the case of fall…
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