NTSB CAROL · Event
Event ANC71DAG19
Registry · N4123D
FAA Aircraft Registry record.
Make / Model
HELIO H-391B
Year of manufacture
1957 · 13 years old at event
Engine
LYCOMING GO-435C&D SER (260 hp)
Seats / Engines
4 seats · 1 engine
Last airworthiness date
19570326
ADS-B equipped
Yes — Mode-S A4DE53
Registrant of record
THUN KARL J
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
HELIO ACFT H-391B · N4123D
Damage
Substantial
Craft type
Airplane
Classification
Accident
Light condition
Dawn
Weather
VMC
Phase of flight
C0
Operator type
Business
Kind of flying
B0
Weather at impact
Sky
CLEAR
Temp
56° F
Aircraft history
Serial number
000000000042
Total time
1,417 hrs
Pilot
Certificate
Commercial — instrument
Total hours
591
Age
48
Probable cause (from PRE1982.MDB)
OF ATMT. HIT SOFT SPOT IN SAND.
Investigator remarks
PLT DID NOT CHECK CONDITION OF BEACH PRIOR TO TK
Cause factors
- 64/C/29 C PILOT IN COMMAND INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING Cause
- 64/C/35 C PILOT IN COMMAND SELECTED UNSUITABLE TERRAIN Cause
- 83/C/K C TERRAIN SANDY 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 4497.
Source file
NTSB_1970_3_4497.txt.
Modern CAROL record on
data.ntsb.gov ↗.
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