Atlas / NTSB / ANC71DAG40

NTSB CAROL · Event

Event ANC71DAG40

1970-09-06 SKWENTNA, Alaska, United States Minor 1 aircraft Status: Completed

Aircraft involved

N3118B Cessna 170B Minor

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 · N3118B

Damage

Substantial

Craft type

Airplane

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

C0

Operator type

D

Kind of flying

B0

Weather at impact

Sky

CLEAR

Wind

280° / 15 kt

Temp

50° F

Aircraft history

Serial number

000000025360

Total time

2,513 hrs

Pilot

Certificate

Commercial — instrument

Total hours

1,568

Age

46

Investigator remarks

RIVER SAND,GRAVEL BAR.HIT 8IN RISE.

Cause factors

64/C/35 C
PILOT IN COMMAND SELECTED UNSUITABLE TERRAIN Cause
83/C/F C
TERRAIN ROUGH/UNEVEN Cause
88/L/94 L
MISCELLANEOUS ACTS,CONDITIONS OVERLOAD FAILURE

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 3642. Source file NTSB_1970_3_3642.txt. Modern CAROL record on data.ntsb.gov ↗.

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