NTSB CAROL · Event
Event ANC74AA022
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
ALOUETTE SA318B · N7329
Damage
Substantial
Craft type
Balloon
Classification
Accident
Light condition
Dawn
Weather
VMC
Phase of flight
C2
Operator type
E
Kind of flying
CI
Weather at impact
Sky
CLEAR
Aircraft history
Serial number
Z
Total time
775 hrs
Pilot
Certificate
Commercial
Total hours
1,500
Age
26
Probable cause (from PRE1982.MDB)
KD ACFT.CONT FLT.T/R DRIVE SHAFT BEARING FAILED.
Investigator remarks
PLT LND TWICE ENRTE DUE VIBRATION.2ND LDG MECH C
Cause factors
- 78/C/BG C ROTORCRAFT TAIL ROTOR DRIVE SHAFT ASSEMBLY Cause
- 88/C/80 C MISCELLANEOUS ACTS,CONDITIONS LACK OF LUBRICATION-SPECIFIC PART,NOT SYSTEM Cause
- 68/C/D6 C PERSONNEL INADEQUATE MAINTENANCE AND INSPECTION Cause
- 83/B/F B TERRAIN ROUGH/UNEVEN
- 68/L/D4 L PERSONNEL INADEQUATE INSPECTION OF AIRCRAFT (MAINTENANCE PERSONNEL)
- 64/L/20 L PILOT IN COMMAND FAILED TO FOLLOW APPROVED PROCEDURES,DIRECTIVES,ETC.
- 88/L/CV L MISCELLANEOUS ACTS,CONDITIONS VIBRATION,EXCESSIVE
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 2228.
Source file
NTSB_1973_3_2228.txt.
Modern CAROL record on
data.ntsb.gov ↗.
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