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Atlas / NTSB / SEA69D0179

NTSB CAROL · Event

Event SEA69D0179

1969-01-17 SILVERDALE, Washington, 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 150 · N6798S

Damage

Substantial

Craft type

Airplane

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

DC

Operator type

Personal/private

Airport

APEX AIRPARK

Kind of flying

A0

Weather at impact

Sky

CLEAR

Aircraft history

Total time

1,126 hrs

Pilot

Certificate

Flight instructor (CFI)

Total hours

501

Age

25

Probable cause (from PRE1982.MDB)

AND. RNWY SNOW COVERED 11 IN DEEP.

Investigator remarks

SIMULATED FORCED LDG. INSTR ALLOWED STUDENT TO L

Cause factors

  • 88/C/85 C
    MISCELLANEOUS ACTS,CONDITIONS SIMULATED CONDITIONS Cause
  • 64/B/35 B
    PILOT IN COMMAND SELECTED UNSUITABLE TERRAIN
  • 80/B/BC B
    AIRPORTS/AIRWAYS/FACILITIES SNOW ON RUNWAY

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 0694. Source file NTSB_1969_3_0694.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 ↗