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Atlas / NTSB / UNK64X1305

NTSB CAROL · Event

Event UNK64X1305

1964-04-14 MONROEVILLE, Pennsylvania, United States None 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

CESSNA 120 · N4256N

Damage

Substantial

Craft type

Airplane

Classification

Accident

Light condition

Night

Weather

VMC

Phase of flight

Cruise — descent (EF)

Operator type

D

Airport

PITSBRG-MONROVLE

Kind of flying

B0

Pilot

Certificate

B2 (B2)

Total hours

3,855

Age

500

Investigator remarks

METAL PARTICLES AND SLUDGE IN BRAKE FLUID

Cause factors

  • 68/C/D0 C
    PERSONNEL IMPROPER MAINTENANCE (MAINTENANCE PERSONNEL) Cause
  • 68/C/D4 C
    PERSONNEL INADEQUATE INSPECTION OF AIRCRAFT (MAINTENANCE PERSONNEL) Cause
  • 84/C/G C
    MISCELLANEOUS FOREIGN MATERIAL AFFECTING NORMAL OPERATIONS 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 0921. Source file NTSB_1964_3_0921.txt. Modern CAROL record on data.ntsb.gov ↗.

Related research

What the literature says.

Academic papers and agency reports matching this event's aircraft type. Sourced from NASA NTRS, NTSB Safety Studies, FAA CAMI, AOPA Air Safety Institute, Embry-Riddle Scholarly Commons, arXiv, and the Semantic Scholar academic graph.

Browse the full corpus — academia portal ↗