Atlas / NTSB / CHI74DEP45

NTSB CAROL · Event

Event CHI74DEP45

1974-04-27 BRODHEAD, Wisconsin, United States None 1 aircraft Status: Completed

Aircraft involved

N9394L AMER AVCO AA1-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

AMER AVCO AA1-A · N9394L

Damage

Substantial

Craft type

Airplane

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

EB

Operator type

Personal/private

Airport

BRODHEAD

Kind of flying

A0

Weather at impact

Sky

CLEAR

Aircraft history

Serial number

000AA-1A0049

Total time

1,523 hrs

Pilot

Certificate

Flight instructor (CFI)

Total hours

560

Age

22

Cause factors

66/C/48 C
DUAL STUDENT Cause
64/C/30 C
PILOT IN COMMAND INADEQUATE SUPERVISION OF FLIGHT 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 1733. Source file NTSB_1974_3_1733.txt. Modern CAROL record on data.ntsb.gov ↗.

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