NTSB CAROL · Event
Event DEN78FI012
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
DEHAVILLAND DHC-7 · N27RM
Damage
Minor
Craft type
Airplane
Classification
C
Light condition
Dawn
Weather
VMC
Phase of flight
B1
Operator type
E
Airport
STAPLETON INTL
Kind of flying
A2
Weather at impact
Sky
CLEAR
Aircraft history
Serial number
000000000004
Total time
65 hrs
Pilot
Certificate
DA (DA)
Total hours
11,300
Age
52
Probable cause (from PRE1982.MDB)
E.
Investigator remarks
INSTRUCTIONS FOR MANUAL GEAR EXTENTION INADEQUAT
Cause factors
- 68/A/J2 A PERSONNEL POOR/INADEQUATE DESIGN Cause — pilot/personnel action
- 70/A/CM A AIRFRAME GEAR LOCKING MECHANISM Cause — pilot/personnel action
- 68/J/E4 J PERSONNEL FAILURE TO PROVIDE ADEQ.DIRECTIVES,MANUAL,EQUIPMENT Joint cause
- 88/J/07 J MISCELLANEOUS ACTS,CONDITIONS IMPROPER EMERGENCY PROCEDURES 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 0022.
Source file
NTSB_1977_5_0022.txt.
Modern CAROL record on
data.ntsb.gov ↗.
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