Atlas / NTSB / MKC80FTG08

NTSB CAROL · Event

Event MKC80FTG08

1980-03-22 GRAND FORKS, North Dakota, United States None 1 aircraft Status: Completed

Aircraft involved

N1678D Cessna 170B None

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 170B · N1678D

Damage

Substantial

Craft type

Airplane

Classification

Accident

Light condition

Dawn

Weather

IMC

Phase of flight

EE

Operator type

D

Airport

GRAND FORKS INTL

Kind of flying

B0

Weather at impact

Sky

UNKNOWN/NOT REPORTED

Wind

170° / 5 kt

Temp

30° F

Aircraft history

Serial number

000000020320

Total time

2,200 hrs

Pilot

Certificate

Commercial — instrument

Total hours

147

Age

26

Probable cause (from PRE1982.MDB)

GHT SKI DROPPED DOWN AND PREVENTED NORMAL LNDG.

Investigator remarks

PILOT INSTALLED SKIS. AFTER TAKE-OFF,FRONT OF RI

Cause factors

68/A/D1 A
PERSONNEL IMPROPER MAINTENANCE (OWNER PERSONNEL) Cause — pilot/personnel action
70/A/CG A
AIRFRAME SKI ASSEMBLIES Cause — pilot/personnel action
88/A/CB A
MISCELLANEOUS ACTS,CONDITIONS IMPROPERLY INSTALLED Cause — pilot/personnel action

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 1329. Source file NTSB_1980_3_1329.txt. Modern CAROL record on data.ntsb.gov ↗.

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