Atlas / NTSB / ANC70D0054

NTSB CAROL · Event

Event ANC70D0054

1969-04-07 ANIAK, Alaska, United States None 1 aircraft Status: Completed

Aircraft involved

N3478D Cessna 170B 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

CESSNA 170B · N3478D

Damage

Substantial

Craft type

Airplane

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

C0

Operator type

D

Kind of flying

DD

Weather at impact

Sky

UNKNOWN/NOT REPORTED

Aircraft history

Serial number

000000027021

Pilot

Certificate

Commercial

Total hours

2,000

Age

37

Probable cause (from PRE1982.MDB)

.

Investigator remarks

RT SKI DROPPED THRU CRUSTED SNOW ON FROZEN RIVER

Cause factors

64/A/35 A
PILOT IN COMMAND SELECTED UNSUITABLE TERRAIN Cause — pilot/personnel action
83/J/F J
TERRAIN ROUGH/UNEVEN Joint cause

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 2883. Source file NTSB_1969_3_2883.txt. Modern CAROL record on data.ntsb.gov ↗.

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