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Atlas / NTSB / OAK78FVM07

NTSB CAROL · Event

Event OAK78FVM07

1977-12-19 SAN FRANCISCO, California, 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

PIPER PA-31 · N59721

Damage

Substantial

Craft type

Airplane

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

Cruise — descent (EF)

Operator type

E

Airport

SAN FRANCISCO INT

Kind of flying

CI

Weather at impact

Sky

BROKEN

Wind

060° / 20 kt

Aircraft history

Serial number

0031-7552121

Total time

2,005 hrs

Pilot

Certificate

DA (DA)

Total hours

3,241

Age

31

Cause factors

  • 64/A/39 A
    PILOT IN COMMAND FAILED TO ASSURE THE GEAR WAS DOWN AND LOCKED Cause — pilot/personnel action

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 4055. Source file NTSB_1977_3_4055.txt. Modern CAROL record on data.ntsb.gov ↗.