NTSB CAROL · Event
Event MKC74DCG20
Registry · N20637
FAA Aircraft Registry record.
Make / Model
CESSNA 172M
Year of manufacture
1973 · 1 years old at event
Engine
LYCOMING 0-320 SERIES (180 hp)
Seats / Engines
4 seats · 1 engine
Last airworthiness date
19730219
ADS-B equipped
Yes — Mode-S A1AB2E
Registrant of record
DBJ AVIATION LLC
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
CESSNA 172M · N20637
Damage
Substantial
Craft type
Airplane
Classification
Accident
Light condition
Dawn
Weather
IMC
Phase of flight
Cruise — descent (EF)
Operator type
Personal/private
Kind of flying
B0
Weather at impact
Sky
UNKNOWN/NOT REPORTED
Wind
300° / 6 kt
Temp
15° F
Aircraft history
Serial number
000017261452
Total time
607 hrs
Pilot
Certificate
Commercial — instrument
Total hours
225
Age
53
Probable cause (from PRE1982.MDB)
D FIELD.
Investigator remarks
UNEXPECTED SNOW STORM PILOT LNDD ACFT IN A PLOWE
Cause factors
- 64/A/04 A PILOT IN COMMAND CONTINUED VFR FLIGHT INTO ADVERSE WEATHER CONDITIONS Cause — pilot/personnel action
- 64/A/35 A PILOT IN COMMAND SELECTED UNSUITABLE TERRAIN Cause — pilot/personnel action
- 82/J/D J WEATHER SNOW Joint cause
- 83/J/F J TERRAIN ROUGH/UNEVEN 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 0604.
Source file
NTSB_1974_3_0604.txt.
Modern CAROL record on
data.ntsb.gov ↗.
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