Atlas / NTSB / SEA74DYE39

NTSB CAROL · Event

Event SEA74DYE39

1974-03-03 FORKS, Washington, United States None 1 aircraft Status: Completed

Aircraft involved

N5161B Bell 47G-2 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

BELL 47G-2 · N5161B

Damage

Substantial

Craft type

Balloon

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

C2

Operator type

Public use

Kind of flying

CK

Weather at impact

Sky

OVERCAST

Aircraft history

Serial number

000000001979

Total time

4,946 hrs

Pilot

Certificate

Commercial

Total hours

5,100

Age

46

Probable cause (from PRE1982.MDB)

ENGAGE CLUTCH,HIT STUMPS,CAUSE OF MALF UNKNOWN.

Investigator remarks

CLUTCH SLIPPED DURING VERTICAL LIFT.UNABLE TO RE

Cause factors

78/C/BJ C
ROTORCRAFT CLUTCH ASSEMBLY Cause
88/C/95 C
MISCELLANEOUS ACTS,CONDITIONS MATERIAL FAILURE 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 0758. Source file NTSB_1974_3_0758.txt. Modern CAROL record on data.ntsb.gov ↗.

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