Atlas / NTSB / OAK76DVG21

NTSB CAROL · Event

Event OAK76DVG21

1975-09-09 DAVIS, California, United States None 1 aircraft Status: Completed

Aircraft involved

N1263W Weatherly 201A None

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

WEATHERLY 201A · N1263W

Damage

Substantial

Craft type

Airplane

Classification

Accident

Light condition

Dawn

Weather

Z

Phase of flight

Cruise — descent (EF)

Operator type

Part 135 (air taxi/commuter)

Airport

MEDLOCK FIELD

Kind of flying

CB

Weather at impact

Sky

UNKNOWN/NOT REPORTED

Aircraft history

Serial number

000000000617

Total time

429 hrs

Pilot

Certificate

DA (DA)

Total hours

22,900

Age

53

Investigator remarks

R BRAKE MASTER CYL O RING FAILED

Cause factors

70/C/CJ C
AIRFRAME BRAKING SYSTEM (NORMAL SYSTEM) Cause
88/C/95 C
MISCELLANEOUS ACTS,CONDITIONS MATERIAL FAILURE Cause
88/C/CM C
MISCELLANEOUS ACTS,CONDITIONS PRESSURE,NONE Cause
83/K/F K
TERRAIN ROUGH/UNEVEN 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 2774. Source file NTSB_1975_3_2774.txt. Modern CAROL record on data.ntsb.gov ↗.

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