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Atlas / NTSB / OAK67D0253

NTSB CAROL · Event

Event OAK67D0253

1967-03-17 HILO, Hawaii, 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

BELL 47G3B1 · N1346X

Damage

Substantial

Craft type

Balloon

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

D4

Operator type

Business

Kind of flying

CR

Weather at impact

Sky

CLEAR

Wind

270° / 10 kt

Temp

60° F

Aircraft history

Total time

227 hrs

Pilot

Certificate

Commercial

Total hours

2,420

Age

28

Probable cause (from PRE1982.MDB)

TION ATTEMPTED WITH FLOATS ON HELICOPTER.

Investigator remarks

LOWERING SLING LOAD INTO FOREST.FIRST TIME OPERA

Cause factors

  • 64/C/21 C
    PILOT IN COMMAND IMPROPER OPERATION OF POWERPLANT & POWERPLANT CONTROLS Cause
  • 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

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 0262. Source file NTSB_1967_2_0262.txt. Modern CAROL record on data.ntsb.gov ↗.