NTSB CAROL · Event
Event CHI79FA018
Registry · N6DF
FAA Aircraft Registry record.
Make / Model
GRUMMAN G-21A
Year of manufacture
1945 · 33 years old at event
Engine
P&W R-985 SERIES (450 hp)
Seats / Engines
8 seats · 2 engines
Last airworthiness date
19771028
ADS-B equipped
Yes — Mode-S A7C2DE
Registrant of record
MABEE ROY W
Source: FAA Aircraft Registry (releasable master file).
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
BEECH V35A · N6DF
Damage
Destroyed
Craft type
Airplane
Classification
Accident
Light condition
Dusk
Weather
IMC
Phase of flight
Cruise — level (EA)
Operator type
Business
Airport
PALWAUKEE
Kind of flying
B0
Weather at impact
Sky
OVERCAST
Wind
240° / 15 kt
Temp
32° F
Aircraft history
Serial number
0000000D8841
Total time
1,575 hrs
Pilot
Certificate
Commercial — instrument
Total hours
1,164
Age
48
Investigator remarks
PILOT REPORTED HEAVY STRUCTURAL ICING.
Cause factors
- 64/A/27 A PILOT IN COMMAND IMPROPER IN-FLIGHT DECISIONS OR PLANNING Cause — pilot/personnel action
- 88/A/74 A MISCELLANEOUS ACTS,CONDITIONS AIRFRAME ICE Cause — pilot/personnel action
- 82/J/A J WEATHER LOW CEILING Joint cause
- 82/J/C J WEATHER FOG 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 4429.
Source file
NTSB_1978_3_4429.txt.
Modern CAROL record on
data.ntsb.gov ↗.
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