Atlas / NTSB / UNK64X3219

NTSB CAROL · Event

Event UNK64X3219

1964-08-04 JORDAN VALLEY, Oregon, United States None 1 aircraft Status: Completed

Registry · N30856

FAA Aircraft Registry record.

Make / Model

CESSNA 177B

Year of manufacture

1970

Engine

LYCOMING 0-320 SERIES (180 hp)

Seats / Engines

4 seats · 1 engine

Last airworthiness date

19701119

ADS-B equipped

Yes — Mode-S A34030

Registrant of record

GROOTHIUS DUANE A

Source: FAA Aircraft Registry (releasable master file).

Aircraft involved

N30856 Bell 47G3B1 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 47G3B1 · N30856

Damage

Destroyed

Craft type

Balloon

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

DG

Operator type

Part 135 (air taxi/commuter)

Kind of flying

CA

Weather at impact

Sky

CLEAR

Pilot

Certificate

C3 (C3)

Total hours

75,000

Age

433

Cause factors

64/A/54 A
PILOT IN COMMAND MISJUDGED CLEARANCE 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 0603. Source file NTSB_1964_2_0603.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.