NTSB CAROL · Event
Event UNK64X0685
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
BEECHCRAFT B35 · N7973D
Damage
Substantial
Craft type
Airplane
Classification
Accident
Light condition
Dawn
Weather
VMC
Phase of flight
C4
Operator type
D
Kind of flying
B0
Pilot
Certificate
Commercial — instrument
Total hours
3,000
Age
53
Probable cause (from PRE1982.MDB)
MISC-UNKNOWN PERSON TAMPERED WITH AIRCRAFT.
Investigator remarks
TAMPERING RESULTED IN INSTABILITY IN AIR.
Cause factors
- 64/A/29 A PILOT IN COMMAND INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING Cause — pilot/personnel action
- 84/A/J A MISCELLANEOUS WRITTEN CAUSE Cause — pilot/personnel action
- 68/J/K9 J PERSONNEL OTHER 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 0463.
Source file
NTSB_1964_3_0463.txt.
Modern CAROL record on
data.ntsb.gov ↗.
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