Atlas / NTSB / ANC72AA022

NTSB CAROL · Event

Event ANC72AA022

1971-11-21 KOTZEBUE, Alaska, United States Fatal 1 aircraft Status: Completed

Aircraft involved

N3455D Cessna 170B Fatal

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 · N3455D

Damage

Destroyed

Craft type

Airplane

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

Takeoff — initial climb (C1)

Operator type

D

Airport

WEIN MEMORIAL

Kind of flying

B0

Weather at impact

Sky

CLEAR

Wind

360° / 11 kt

Temp

-4° F

Aircraft history

Serial number

000000026998

Pilot

Certificate

Commercial — instrument

Total hours

1,113

Age

29

Probable cause (from PRE1982.MDB)

LY BEFORE T/O.

Investigator remarks

OBS SAW FROST ON WGS AND INSIDE OF WINDOWS SHORT

Cause factors

64/A/29 A
PILOT IN COMMAND INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING Cause — pilot/personnel action
88/A/74 A
MISCELLANEOUS ACTS,CONDITIONS AIRFRAME ICE 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 3 2703. Source file NTSB_1971_3_2703.txt. Modern CAROL record on data.ntsb.gov ↗.

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