Skip to content

Atlas / NTSB / DEN81FTK17

NTSB CAROL · Event

Event DEN81FTK17

1981-07-31 SIOUX FALLS, South Dakota, United States None 1 aircraft Status: Completed

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 FH1100 · N4258V

Damage

Substantial

Craft type

Balloon

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

B9

Operator type

Personal/private

Airport

JOE FOSS FIELD

Kind of flying

A3

Weather at impact

Sky

OVERCAST

Wind

230° / 8 kt

Temp

80° F

Aircraft history

Serial number

000000000060

Total time

1,393 hrs

Pilot

Certificate

DA (DA)

Total hours

4,759

Age

31

Probable cause (from PRE1982.MDB)

ZATION FLT.

Investigator remarks

CREW CRASHED DURING SELF INSTRUCTIONAL FAMILIARI

Cause factors

  • 64/C/23 C
    PILOT IN COMMAND IMPROPER OPERATION OF FLIGHT CONTROLS Cause
  • 64/C/31 C
    PILOT IN COMMAND LACK OF FAMILIARITY WITH AIRCRAFT 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 2483. Source file NTSB_1981_3_2483.txt. Modern CAROL record on data.ntsb.gov ↗.