Atlas / NTSB / CHI80FA067

NTSB CAROL · Event

Event CHI80FA067

1980-09-03 CHICAGO, Illinois, United States Fatal 1 aircraft Status: Completed

Aircraft involved

N4700E AERO COMDR 680FL Fatal

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

AERO COMDR 680FL · N4700E

Damage

Destroyed

Craft type

Airplane

Classification

Accident

Light condition

Day

Weather

VMC

Phase of flight

Takeoff — initial climb (C1)

Operator type

E

Airport

CHICAGO MIDWAY

Kind of flying

CJ

Weather at impact

Sky

CLEAR

Temp

60° F

Aircraft history

Serial number

000000001779

Total time

2,688 hrs

Pilot

Certificate

GA (GA)

Total hours

2,079

Age

29

Probable cause (from PRE1982.MDB)

S.WITNESS OBSD ACFT IN TIGHT TURN BACK TO ARPT.

Investigator remarks

NO 5 EXHAUST VLV SEAT IN L ENG CAME OUT OF RECES

Cause factors

74/C/AF C
POWERPLANT VALVE ASSEMBLIES Cause
88/C/95 C
MISCELLANEOUS ACTS,CONDITIONS MATERIAL FAILURE Cause
64/B/20 B
PILOT IN COMMAND FAILED TO FOLLOW APPROVED PROCEDURES,DIRECTIVES,ETC.

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 2881. Source file NTSB_1980_3_2881.txt. Modern CAROL record on data.ntsb.gov ↗.

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