Atlas / NTSB / SEA69F0168

NTSB CAROL · Event

Event SEA69F0168

1968-12-17 MISSOULA, Montana, United States None 1 aircraft Status: Completed

Aircraft involved

N4735R Bell 206A 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 206A · N4735R

Damage

Substantial

Craft type

Balloon

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

D1

Operator type

G

Kind of flying

CG

Weather at impact

Sky

CLEAR

Aircraft history

Total time

59 hrs

Pilot

Certificate

Commercial

Total hours

13,000

Age

49

Probable cause (from PRE1982.MDB)

SCREWED AND SEPARATED FROM TURBINE GOVERNOR.

Investigator remarks

FUEL CONTROL COMPRESSOR DISCHARGE TUBE BECAME UN

Cause factors

74/C/SE C
POWERPLANT FUEL CONTROL Cause
74/C/CB C
POWERPLANT LINES AND FITTINGS Cause
88/C/BM C
MISCELLANEOUS ACTS,CONDITIONS DISCONNECTED Cause
68/C/D6 C
PERSONNEL INADEQUATE MAINTENANCE AND INSPECTION 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 4890. Source file NTSB_1968_3_4890.txt. Modern CAROL record on data.ntsb.gov ↗.

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