NTSB CAROL · Event
Event ANC74AA006
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
HILLER ACFT UH-12E · N9743C
Damage
Substantial
Craft type
Balloon
Classification
Accident
Light condition
Dawn
Weather
VMC
Phase of flight
EH
Operator type
E
Kind of flying
CI
Weather at impact
Sky
UNKNOWN/NOT REPORTED
Wind
180° / 20 kt
Temp
40° F
Aircraft history
Serial number
Z
Total time
4,628 hrs
Pilot
Certificate
Flight instructor (CFI)
Total hours
3,070
Age
26
Probable cause (from PRE1982.MDB)
GEOLOGICAL STUDIES.
Investigator remarks
ATTEMPTED LDG ON MTN RIDGE,WIND GUSTING TO 30K.
Cause factors
- 64/C/23 C PILOT IN COMMAND IMPROPER OPERATION OF FLIGHT CONTROLS Cause
- 64/C/18 C PILOT IN COMMAND FAILED TO MAINTAIN ADEQUATE ROTOR R.P.M. Cause
- 82/C/H C WEATHER UNFAVORABLE WIND CONDITIONS Cause
- 64/L/27 L PILOT IN COMMAND IMPROPER IN-FLIGHT DECISIONS OR PLANNING
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 1854.
Source file
NTSB_1973_3_1854.txt.
Modern CAROL record on
data.ntsb.gov ↗.
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