NTSB CAROL · Event
Event CHI77FEC44
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
WALLIS 3 · N65022
Damage
Substantial
Craft type
Airplane
Classification
Accident
Light condition
Dawn
Weather
VMC
Phase of flight
Takeoff — initial climb (C1)
Operator type
D
Kind of flying
B0
Weather at impact
Sky
CLEAR
Aircraft history
Serial number
000000000001
Total time
26 hrs
Pilot
Certificate
Commercial — instrument
Total hours
556
Age
48
Investigator remarks
GEAR RETAINING PIN SLIPPED OUT OF POSITION.
Cause factors
- 74/C/FL C POWERPLANT PLANETARY GEAR Cause
- 68/C/J2 C PERSONNEL POOR/INADEQUATE DESIGN 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 2825.
Source file
NTSB_1977_3_2825.txt.
Modern CAROL record on
data.ntsb.gov ↗.
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