Skip to content

Atlas / NTSB / UNK64X3705

NTSB CAROL · Event

Event UNK64X3705

1964-08-31 PRIOR LAKE, Minnesota, United States Serious 1 aircraft Status: Completed

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

PIPER PA25 · N6276Z

Damage

Substantial

Craft type

Airplane

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

DJ

Operator type

Part 135 (air taxi/commuter)

Kind of flying

CA

Weather at impact

Sky

CLEAR

Aircraft history

Total time

1,282 hrs

Pilot

Certificate

Commercial

Total hours

2,200

Age

27

Cause factors

  • 74/A/I0 A
    POWERPLANT THROTTLE-POWER LEVER ASSEMBLIES Cause — pilot/personnel action
  • 88/A/BM A
    MISCELLANEOUS ACTS,CONDITIONS DISCONNECTED Cause — pilot/personnel action
  • 68/C/D0 C
    PERSONNEL IMPROPER MAINTENANCE (MAINTENANCE PERSONNEL) Cause
  • 68/C/D4 C
    PERSONNEL INADEQUATE INSPECTION OF AIRCRAFT (MAINTENANCE PERSONNEL) Cause
  • 83/K/D K
    TERRAIN HIGH VEGETATION 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 2 0531. Source file NTSB_1964_2_0531.txt. Modern CAROL record on data.ntsb.gov ↗.