Atlas / NTSB / SEA71DXM01

NTSB CAROL · Event

Event SEA71DXM01

1970-07-06 HAILEY, Idaho, United States None 1 aircraft Status: Completed

Registry · N68645

FAA Aircraft Registry record.

Make / Model

BELL 47G-3B-1

Year of manufacture

1963 · 7 years old at event

TCDS

2H3 · SCOTT'S-BELL 47 INC

Engine

LYCOMING TVO-435-GIA (280 hp)

Seats / Engines

3 seats · 1 engine

Last airworthiness date

19630515

ADS-B equipped

Yes — Mode-S A91C83

Registrant of record

ADVANTAGE HELICOPTERS LLC

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

N68645 Bell 47G-3B 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-3B · N68645

Damage

Substantial

Craft type

Balloon

Classification

Accident

Light condition

Night

Weather

VMC

Phase of flight

D1

Operator type

Personal/private

Airport

FRIEDMAN

Kind of flying

B1

Weather at impact

Sky

CLEAR

Wind

360° / 3 kt

Temp

73° F

Aircraft history

Serial number

000000002820

Total time

617 hrs

Pilot

Certificate

Commercial

Total hours

1,260

Age

27

Cause factors

74/C/KA C
POWERPLANT POWERPLANT FAILURE FOR UNDETERMINED REASONS Cause
64/B/18 B
PILOT IN COMMAND FAILED TO MAINTAIN ADEQUATE ROTOR R.P.M.
83/K/I K
TERRAIN HIGH OBSTRUCTIONS 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 0675. Source file NTSB_1970_3_0675.txt. Modern CAROL record on data.ntsb.gov ↗.

Beyond the agency record

Search this event elsewhere.

Pre-filled searches into the sources where news + community discussion of aviation events lives. External sources are reported, not agency. Treat them as signal that something happened, not as fact about what happened.

TallyAero Live Wire Aviation press

Entity-clustered aviation events in the press — last 24 hr + 30-day archive.

NTSB CAROL Agency ↗

Official agency record + docket.

NTSB Docket Agency ↗

Investigative docket: factual reports, photos, transcripts.

Aviation Safety Network Aviation press ↗

Long-running aviation incident database (Flight Safety Foundation).

Kathryn's Report Aviation press ↗

Community NTSB synthesis blog — often has photos and witness reports.

Aviation Herald Aviation press ↗

Gold-standard aviation incident blog.