NTSB CAROL · Event
Event CHI72DEE45
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
MOONEY M20B · N74578
Damage
Substantial
Craft type
Airplane
Classification
Accident
Light condition
Dawn
Weather
VMC
Phase of flight
Cruise — descent (EF)
Operator type
D
Airport
GREATER ROCKFORD
Kind of flying
A0
Weather at impact
Sky
BROKEN
Wind
100° / 15 kt
Aircraft history
Serial number
000000001889
Total time
1,204 hrs
Pilot
Certificate
Flight instructor (CFI)
Total hours
1,340
Age
26
Probable cause (from PRE1982.MDB)
ING HORN ALSO INOP.ACFT ROLLED ABOUT 400 FT.
Investigator remarks
BOTH PLTS KNEW OF GR DOWN LT MALFUNCTION.GR WARN
Cause factors
- 66/A/39 A DUAL STUDENT Cause — pilot/personnel action
- 64/A/30 A PILOT IN COMMAND INADEQUATE SUPERVISION OF FLIGHT Cause — pilot/personnel action
- 64/J/31 J PILOT IN COMMAND LACK OF FAMILIARITY WITH AIRCRAFT Joint cause
- 64/J/01 J PILOT IN COMMAND ATTEMPTED OPERATION W/KNOWN DEFICIENCIES IN EQUIPMENT Joint cause
- 70/J/CL J AIRFRAME LANDING GEAR WARNING AND INDICATING COMPONENTS Joint cause
- 88/J/91 J MISCELLANEOUS ACTS,CONDITIONS TOUCH AND GO LANDING 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
3 3440.
Source file
NTSB_1971_3_3440.txt.
Modern CAROL record on
data.ntsb.gov ↗.
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