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Atlas / NTSB / SEA67A0027

NTSB CAROL · Event

Event SEA67A0027

1966-09-21 W.YELLOWSTON, Montana, United States Fatal 1 aircraft Status: Completed

Registry · N1169W

FAA Aircraft Registry record.

Make / Model

BELL 47G-3B-1

Year of manufacture

1966 · 0 years old at event

TCDS

2H3 · SCOTT'S-BELL 47 INC

Engine

AMA/EXPR UNKNOWN ENG

Seats / Engines

3 seats · 1 engine

Last airworthiness date

19980810

ADS-B equipped

Yes — Mode-S A04625

Registrant of record

TWO WISE GUYS AVIATION 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

BELL 47G3B1 · N1169W

Damage

Destroyed

Craft type

Balloon

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

D5

Operator type

Public use

Kind of flying

CT

Weather at impact

Sky

CLEAR

Temp

68° F

Aircraft history

Total time

869 hrs

Pilot

Certificate

Commercial

Total hours

4,983

Age

43

Probable cause (from PRE1982.MDB)

LT PLT TURNED TO LEFT DOWNSLOPE.NEAR MAX GROSS WT.

Investigator remarks

RECOVERY DATE 9/22/66.AFTER LOSING LIFT AT LOW A

Cause factors

  • 64/A/49 A
    PILOT IN COMMAND MISJUDGED SPEED AND ALTITUDE Cause — pilot/personnel action
  • 64/A/16 A
    PILOT IN COMMAND FAILED TO OBTAIN/MAINTAIN FLYING SPEED Cause — pilot/personnel action
  • 64/A/18 A
    PILOT IN COMMAND FAILED TO MAINTAIN ADEQUATE ROTOR R.P.M. Cause — pilot/personnel action
  • 64/A/21 A
    PILOT IN COMMAND IMPROPER OPERATION OF POWERPLANT & POWERPLANT CONTROLS Cause — pilot/personnel action
  • 64/A/23 A
    PILOT IN COMMAND IMPROPER OPERATION OF FLIGHT CONTROLS Cause — pilot/personnel action
  • 82/A/W A
    WEATHER HIGH DENSITY ALTITUDE 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 2 1105. Source file NTSB_1966_2_1105.txt. Modern CAROL record on data.ntsb.gov ↗.