Atlas / NTSB / OAK77FVG54

NTSB CAROL · Event

Event OAK77FVG54

1977-07-30 SAWYERS BAR, California, United States Serious 1 aircraft Status: Completed

Aircraft involved

N16805 Bell 214B1 Serious

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 214B1 · N16805

Damage

Substantial

Craft type

Balloon

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

D4

Operator type

Business

Kind of flying

DY

Weather at impact

Sky

CLEAR

Wind

270° / 8 kt

Temp

80° F

Aircraft history

Serial number

000000028035

Total time

167 hrs

Pilot

Certificate

Commercial

Total hours

5,600

Age

31

Probable cause (from PRE1982.MDB)

RY INNER BEVEL GEAR,P/N 2-070-005-02,FAILED.

Investigator remarks

HELICOPTER ENGAGED IN LOGGING OPERATION. ACCESSO

Cause factors

74/C/Q6 C
POWERPLANT GEARS,ACCESSORY DRIVE Cause
88/A/36 A
MISCELLANEOUS ACTS,CONDITIONS FATIGUE FRACTURE Cause — pilot/personnel action
88/A/96 A
MISCELLANEOUS ACTS,CONDITIONS FUEL STARVATION Cause — pilot/personnel action

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 3960. Source file NTSB_1977_3_3960.txt. Modern CAROL record on data.ntsb.gov ↗.

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