Skip to content

Atlas / NTSB / ANC76AA123

NTSB CAROL · Event

Event ANC76AA123

1976-08-15 SHEEP MOUNTAIN, Alaska, United States Fatal 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 UH12EJ · N47078

Damage

Destroyed

Craft type

Balloon

Classification

Accident

Light condition

Night

Weather

VMC

Phase of flight

D1

Operator type

E

Kind of flying

DD

Weather at impact

Sky

OVERCAST

Aircraft history

Serial number

000000001371

Total time

5,889 hrs

Pilot

Certificate

Commercial

Total hours

5,856

Age

39

Probable cause (from PRE1982.MDB)

.

Investigator remarks

HIT UNMARKED PWR LINES ABT 175FT AGL IN MTN PASS

Cause factors

  • 64/A/15 A
    PILOT IN COMMAND FAILED TO SEE AND AVOID OBJECTS OR OBSTRUCTIONS Cause — pilot/personnel action
  • 83/J/I J
    TERRAIN HIGH OBSTRUCTIONS Joint 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 1792. Source file NTSB_1976_3_1792.txt. Modern CAROL record on data.ntsb.gov ↗.