Atlas / NTSB / UNK65X1170

NTSB CAROL · Event

Event UNK65X1170

1964-12-28 SPANISH FORK, Utah, United States None 1 aircraft Status: Completed

Aircraft involved

N4486K Navion A 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

NAVION A · N4486K

Damage

Substantial

Craft type

Airplane

Classification

Accident

Light condition

Dawn

Weather

IMC

Phase of flight

Cruise — descent (EF)

Operator type

D

Airport

SPANISH FORK

Kind of flying

B0

Weather at impact

Sky

OVERCAST

Wind

015° / — kt

Temp

26° F

Aircraft history

Total time

2,972 hrs

Pilot

Certificate

Commercial — instrument

Total hours

233

Age

38

Cause factors

64/C/80 C
PILOT IN COMMAND SELECTED WRONG RUNWAY RELATIVE TO EXISTING WIND Cause
82/C/A C
WEATHER LOW CEILING Cause
82/C/D C
WEATHER SNOW Cause
88/K/94 K
MISCELLANEOUS ACTS,CONDITIONS OVERLOAD FAILURE Joint factor
88/L/AQ L
MISCELLANEOUS ACTS,CONDITIONS DOWNWIND

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 3799. Source file NTSB_1964_3_3799.txt. Modern CAROL record on data.ntsb.gov ↗.

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