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Atlas / NTSB / OAK66A0013

NTSB CAROL · Event

Event OAK66A0013

1965-09-25 LINCOLN, California, 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

BREEZE H1 · N73636

Damage

Substantial

Craft type

Balloon

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

Cruise climb (DB)

Operator type

D

Airport

LINCOLN MUN

Kind of flying

DB

Weather at impact

Sky

CLEAR

Wind

125° / 10 kt

Temp

75° F

Aircraft history

Total time

99 hrs

Pilot

Certificate

Commercial — instrument

Total hours

350

Age

47

Probable cause (from PRE1982.MDB)

PILOT-IMPROPER INSTALLATION BY PILOT/BUILDER.

Investigator remarks

ROTOR BLADE COUNTERWEIGHT CAME OFF DURING FLIGHT

Cause factors

  • 84/C/J C
    MISCELLANEOUS WRITTEN CAUSE Cause
  • 88/L/94 L
    MISCELLANEOUS ACTS,CONDITIONS OVERLOAD FAILURE
  • 88/L/CH L
    MISCELLANEOUS ACTS,CONDITIONS OUT OF BALANCE
  • 88/L/CP L
    MISCELLANEOUS ACTS,CONDITIONS SHEARED

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 0701. Source file NTSB_1965_2_0701.txt. Modern CAROL record on data.ntsb.gov ↗.

Related research

What the literature says.

Academic papers and agency reports matching this event's aircraft type. Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.

Browse the full corpus — academia portal ↗