Atlas / NTSB / OAK71DXQ42

NTSB CAROL · Event

Event OAK71DXQ42

1971-06-14 BISHOP, California, United States Minor 1 aircraft Status: Completed

Aircraft involved

N73935 Bell 47G3B1 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 47G3B1 · N73935

Damage

Substantial

Craft type

Balloon

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

DG

Operator type

Part 135 (air taxi/commuter)

Kind of flying

CA

Weather at impact

Sky

CLEAR

Aircraft history

Serial number

000000002812

Pilot

Certificate

Commercial

Total hours

5,000

Age

43

Probable cause (from PRE1982.MDB)

NSITION UNIT TO SUPERCHRGR.A/C TOO LOW TO RCVR.

Investigator remarks

PWR LOSS DUE TO LOOSE ATTACH BOLTS THAT HOLD TRA

Cause factors

74/C/G9 C
POWERPLANT OTHER Cause

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 2130. Source file NTSB_1971_3_2130.txt. Modern CAROL record on data.ntsb.gov ↗.

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