NTSB CAROL · Event
Event CHI71IC041
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
BEECH 3NM · N7599
Damage
Minor
Craft type
Airplane
Classification
C
Light condition
Dawn
Weather
VMC
Phase of flight
EE
Operator type
E
Airport
GREATER ROCKFORD
Kind of flying
CJ
Weather at impact
Sky
OVERCAST
Wind
360° / 10 kt
Aircraft history
Serial number
Z
Total time
3,064 hrs
Pilot
Certificate
DA (DA)
Total hours
16,500
Age
53
Probable cause (from PRE1982.MDB)
NING HORN INOP.
Investigator remarks
GR LIMIT SWITCHES STUCK. GR LTS SHOWED GREEN,WAR
Cause factors
- 64/A/39 A PILOT IN COMMAND FAILED TO ASSURE THE GEAR WAS DOWN AND LOCKED Cause — pilot/personnel action
- 70/J/CL J AIRFRAME LANDING GEAR WARNING AND INDICATING COMPONENTS Joint cause
- 88/J/CS J MISCELLANEOUS ACTS,CONDITIONS STUCK Joint cause
- 88/J/03 J MISCELLANEOUS ACTS,CONDITIONS CHECKLIST-FAILED TO USE Joint 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
5 0026.
Source file
NTSB_1970_5_0026.txt.
Modern CAROL record on
data.ntsb.gov ↗.
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