Atlas / NTSB / ANC68F0025

NTSB CAROL · Event

Event ANC68F0025

1967-04-30 MCGRATH, Alaska, United States None 1 aircraft Status: Completed

Aircraft involved

N3623A Piper PA-20 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

PIPER PA-20 · N3623A

Damage

Substantial

Craft type

Airplane

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

Cruise — descent (EF)

Operator type

D

Airport

MCGRATH

Kind of flying

B0

Weather at impact

Sky

CLEAR

Wind

050° / 7 kt

Aircraft history

Total time

2,342 hrs

Pilot

Certificate

Commercial

Total hours

5,200

Age

46

Probable cause (from PRE1982.MDB)

UBE WAS DETERIORATED.

Investigator remarks

LEFT TIRE SLIPPED ON WHEEL, VALVE STEM FAILED. T

Cause factors

70/C/CF C
AIRFRAME WHEELS,TIRES,AXLES Cause
88/C/CB C
MISCELLANEOUS ACTS,CONDITIONS IMPROPERLY INSTALLED Cause
68/C/D1 C
PERSONNEL IMPROPER MAINTENANCE (OWNER PERSONNEL) Cause
88/K/94 K
MISCELLANEOUS ACTS,CONDITIONS OVERLOAD FAILURE Joint factor

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 1705. Source file NTSB_1967_3_1705.txt. Modern CAROL record on data.ntsb.gov ↗.

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