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Atlas / NTSB / OAK75DVG44

NTSB CAROL · Event

Event OAK75DVG44

1975-02-15 CLARKSBURG, California, United States None 1 aircraft Status: Completed

Registry · N3831

FAA Aircraft Registry record.

Make / Model

EUROCOPTER AS 350 B3

Year of manufacture

2005

TCDS

H9EU · AIRBUS HELICOPTERS

Engine

TURBOMECA ARRIEL 2B1 (747 hp)

Seats / Engines

6 seats · 1 engine

Last airworthiness date

20160509

ADS-B equipped

Yes — Mode-S A468EA

Registrant of record

AIR METHODS LLC

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

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

WINDJAMMER · N3831

Damage

Substantial

Craft type

Airplane

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

Takeoff — initial climb (C1)

Operator type

D

Airport

BORGES

Kind of flying

B0

Weather at impact

Sky

CLEAR

Temp

55° F

Aircraft history

Serial number

000000000001

Total time

12 hrs

Pilot

Certificate

Commercial — instrument

Total hours

850

Age

44

Investigator remarks

1600CC VW ENG.

Cause factors

  • 64/C/21 C
    PILOT IN COMMAND IMPROPER OPERATION OF POWERPLANT & POWERPLANT CONTROLS Cause
  • 88/C/02 C
    MISCELLANEOUS ACTS,CONDITIONS ANTI-ICING/DEICING EQUIPMENT-IMPROPER OPERATION OF/OR FAILED TO USE Cause
  • 88/C/72 C
    MISCELLANEOUS ACTS,CONDITIONS ICE-CARBURETOR Cause
  • 82/L/G L
    WEATHER CONDITIONS CONDUCIVE TO CARB./INDUCTION SYSTEM ICING
  • 83/B/A B
    TERRAIN WET,SOFT GROUND

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 0096. Source file NTSB_1975_3_0096.txt. Modern CAROL record on data.ntsb.gov ↗.