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Atlas / NTSB / ANC81DA034

NTSB CAROL · Event

Event ANC81DA034

1981-03-21 SKWENTNA, Alaska, United States None 1 aircraft Status: Completed

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

CESSNA 180 · N4569B

Damage

Substantial

Craft type

Airplane

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

Cruise — descent (EF)

Operator type

D

Airport

SKWENTNA

Kind of flying

B0

Weather at impact

Sky

CLEAR

Temp

35° F

Aircraft history

Serial number

000000031468

Total time

1,900 hrs

Pilot

Certificate

Commercial — instrument

Total hours

378

Age

37

Investigator remarks

MAIN GEAR BROKE THRU SNOW CRUST ON UNATNDD ARPT.

Cause factors

  • 64/A/29 A
    PILOT IN COMMAND INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING Cause — pilot/personnel action
  • 64/A/35 A
    PILOT IN COMMAND SELECTED UNSUITABLE TERRAIN Cause — pilot/personnel action
  • 80/J/BC J
    AIRPORTS/AIRWAYS/FACILITIES SNOW ON RUNWAY 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 0417. Source file NTSB_1981_3_0417.txt. Modern CAROL record on data.ntsb.gov ↗.

Related research

What the literature says.

Academic papers and agency reports matching this event's aircraft type. Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.

Browse the full corpus — academia portal ↗