NTSB CAROL · Event
Event DEN65A0056
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
BELL 47G3B · N73236
Damage
Substantial
Craft type
Balloon
Classification
Accident
Light condition
Dawn
Weather
VMC
Phase of flight
Cruise climb (DB)
Operator type
D
Kind of flying
CE
Weather at impact
Sky
CLEAR
Wind
265° / 25 kt
Temp
20° F
Aircraft history
Total time
647 hrs
Pilot
Certificate
Commercial
Total hours
336
Age
32
Probable cause (from PRE1982.MDB)
PWR PLT-TUR CHGR WAST GTE & DENSTY CONTRL IMP FUNC
Investigator remarks
REDUCED NORMAL ENG PWR DEVELOPMENT.
Cause factors
- 84/C/J C MISCELLANEOUS WRITTEN CAUSE Cause
- 64/C/33 C PILOT IN COMMAND EXERCISED POOR JUDGMENT Cause
- 88/J/98 J MISCELLANEOUS ACTS,CONDITIONS IMPROPER CLEARANCE-TOLERANCE Joint cause
- 88/J/CK J MISCELLANEOUS ACTS,CONDITIONS EXCESSIVE PRESSURE Joint cause
- 82/K/M K WEATHER DOWNDRAFT,UPDRAFTS Joint factor
- 82/K/W K WEATHER HIGH DENSITY ALTITUDE Joint factor
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
2 0230.
Source file
NTSB_1965_2_0230.txt.
Modern CAROL record on
data.ntsb.gov ↗.
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