Atlas / NTSB / LAX71FVQ74

NTSB CAROL · Event

Event LAX71FVQ74

1971-04-10 STA BARBARA, California, United States Minor 1 aircraft Status: Completed

Aircraft involved

N73921 Bell 47J2 Minor

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

BELL 47J2 · N73921

Damage

Substantial

Craft type

Balloon

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

EB

Operator type

E

Airport

SANTA BARBARA

Kind of flying

CI

Weather at impact

Sky

CLEAR

Aircraft history

Serial number

000000002621

Total time

4,654 hrs

Pilot

Certificate

Commercial

Total hours

9,885

Age

50

Probable cause (from PRE1982.MDB)

PERATION.

Investigator remarks

FATIGUE CRACK CAUSED BLD FAILURE AT 350 HRS OF O

Cause factors

78/C/AB C
ROTORCRAFT TAIL ROTOR BLADES Cause
88/C/95 C
MISCELLANEOUS ACTS,CONDITIONS MATERIAL FAILURE Cause
88/L/49 L
MISCELLANEOUS ACTS,CONDITIONS SEPARATION IN FLIGHT

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 1209. Source file NTSB_1971_3_1209.txt. Modern CAROL record on data.ntsb.gov ↗.

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