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Atlas / NTSB / OAK71FVG32

NTSB CAROL · Event

Event OAK71FVG32

1970-10-25 GRASS VALLEY, California, 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

BEECH A23-19 · N7909L

Damage

Substantial

Craft type

Airplane

Classification

Accident

Light condition

Dusk

Weather

VMC

Phase of flight

D2

Operator type

Personal/private

Kind of flying

B0

Weather at impact

Sky

CLEAR

Aircraft history

Serial number

000000MB-120

Total time

2,427 hrs

Pilot

Certificate

Commercial

Total hours

221

Age

33

Probable cause (from PRE1982.MDB)

LDERS LANDING ON HILL. RECOVERY DATE 10/26/70.

Investigator remarks

TOOK OFF INTO AREA OF KNOWN SEVERE TURB. HIT BOU

Cause factors

  • 64/C/29 C
    PILOT IN COMMAND INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING Cause
  • 88/C/63 C
    MISCELLANEOUS ACTS,CONDITIONS FUEL EXHAUSTION Cause
  • 64/L/04 L
    PILOT IN COMMAND CONTINUED VFR FLIGHT INTO ADVERSE WEATHER CONDITIONS
  • 82/L/L L
    WEATHER TURBULENCE, ASSOCIATED W/CLOUDS AND/OR THUNDERSTORMS

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 2404. Source file NTSB_1970_3_2404.txt. Modern CAROL record on data.ntsb.gov ↗.