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Atlas / NTSB / OAK76FJA05

NTSB CAROL · Event

Event OAK76FJA05

1975-11-21 HONOLULU, Hawaii, United States Serious 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

BRANTLY 305 · N2224U

Damage

Substantial

Craft type

Balloon

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

C2

Operator type

Personal/private

Airport

ALA WAI

Kind of flying

CT

Weather at impact

Sky

CLEAR

Wind

065° / 12 kt

Aircraft history

Serial number

000000001039

Total time

488 hrs

Pilot

Certificate

Commercial

Total hours

1,077

Age

41

Probable cause (from PRE1982.MDB)

FT LANDED IN WATER OFF BEACH.

Investigator remarks

TAIL ROTOR DRIVE FAILURE,UNDETERMINED REASONS.AC

Cause factors

  • 78/C/BG C
    ROTORCRAFT TAIL ROTOR DRIVE SHAFT ASSEMBLY Cause
  • 88/C/95 C
    MISCELLANEOUS ACTS,CONDITIONS MATERIAL FAILURE Cause
  • 88/K/88 K
    MISCELLANEOUS ACTS,CONDITIONS AIRCRAFT CAME TO REST IN WATER 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 3 3669. Source file NTSB_1975_3_3669.txt. Modern CAROL record on data.ntsb.gov ↗.