Atlas / NTSB / CHI66F0600

NTSB CAROL · Event

Event CHI66F0600

1966-01-29 NAPERVILLE, Illinois, United States None 1 aircraft Status: Completed

Aircraft involved

N4785A Piper PA-22 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

PIPER PA-22 · N4785A

Damage

Substantial

Craft type

Airplane

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

Cruise — descent (EF)

Operator type

Part 91 (general aviation)

Airport

NAPERVILLE

Kind of flying

B0

Weather at impact

Sky

CLEAR

Wind

300° / 10 kt

Temp

35° F

Aircraft history

Total time

1,714 hrs

Pilot

Certificate

Commercial

Total hours

265

Age

34

Cause factors

64/C/79 C
PILOT IN COMMAND FAILED TO MAINTAIN DIRECTIONAL CONTROL Cause
80/L/BC L
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 0250. Source file NTSB_1966_3_0250.txt. Modern CAROL record on data.ntsb.gov ↗.

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