NTSB CAROL · Event
Event ANC79FA004
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
DEHAVND CAN DHC-6 · N4048B
Damage
Substantial
Craft type
Airplane
Classification
Accident
Light condition
Dawn
Weather
VMC
Phase of flight
EB
Operator type
E
Airport
POST/ROGERS MEM'L
Kind of flying
CI
Weather at impact
Sky
OVERCAST
Wind
270° / 7 kt
Temp
26° F
Aircraft history
Serial number
000000000125
Total time
13,972 hrs
Pilot
Certificate
DA (DA)
Total hours
4,302
Age
32
Probable cause (from PRE1982.MDB)
STABILIZER.
Investigator remarks
IMPROPERLY INSTALLED DE-ICE BOOTS ON HORIZONTAL
Cause factors
- 64/A/04 A PILOT IN COMMAND CONTINUED VFR FLIGHT INTO ADVERSE WEATHER CONDITIONS Cause — pilot/personnel action
- 68/A/D6 A PERSONNEL INADEQUATE MAINTENANCE AND INSPECTION Cause — pilot/personnel action
- 70/A/D9 A AIRFRAME OTHER Cause — pilot/personnel action
- 88/A/CB A MISCELLANEOUS ACTS,CONDITIONS IMPROPERLY INSTALLED Cause — pilot/personnel action
- 64/A/19 A PILOT IN COMMAND FAILED TO USE OR INCORRECTLY USED MISC.EQUIPMENT Cause — pilot/personnel action
- 88/A/02 A MISCELLANEOUS ACTS,CONDITIONS ANTI-ICING/DEICING EQUIPMENT-IMPROPER OPERATION OF/OR FAILED TO USE Cause — pilot/personnel action
- 64/A/71 A PILOT IN COMMAND MISUSED OR FAILED TO USE FLAPS Cause — pilot/personnel action
- 68/J/E0 J PERSONNEL INADEQUATE FLIGHT TRAINING-PROCEDURES Joint cause
- 68/J/E5 J PERSONNEL DEFICIENCY,COMPANY MAINTAINED EQPMT,SERVICES,REGULATION Joint cause
- 82/J/F J WEATHER ICING CONDITIONS-INCLUDES SLEET,FREEZING RAIN,ETC. 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 4357.
Source file
NTSB_1978_3_4357.txt.
Modern CAROL record on
data.ntsb.gov ↗.
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Related research
What the literature says.
Academic papers and agency reports matching this event's aircraft type. Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.
- NASA NTRS 2019 · Contractor Report (CR)
DHC-6 Twin Otter Tailplane Airfoil Section Testing in the Ohio State University 7x10 Wind Tunnel
Ice contaminated tailplane stall (ICTS) has been found to be responsible for 16 accidents with 139 fatalities over the last three decades, and is suspected to have played a role in other accidents and…
- NASA NTRS 2019 · Reprint (Version printed in journal)
In-Flight Aerodynamic Measurements of an Iced Horizontal Tailplane
The effects of tailplane icing on aircraft dynamics and tailplane aerodynamics were investigated using, NASA's modified DHC-6 Twin Otter icing research aircraft.
- NASA NTRS 2019 · Reprint (Version printed in journal)
Investigation of Dynamic Flight Maneuvers With an Iced Tailplane
A detailed analysis of two of the dynamic maneuvers, the pushover and elevator doublet, from the NASA/FAA Tailplane Icing Program are discussed.
Browse the full corpus — academia portal ↗