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Atlas / NTSB / NYC74FNA24

NTSB CAROL · Event

Event NYC74FNA24

1973-10-27 NORWOOD, Massachusetts, 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

LAKE LA-4 · N7631L

Damage

Substantial

Craft type

Airplane

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

B0

Operator type

D

Airport

NORWOOD

Kind of flying

B0

Weather at impact

Sky

UNKNOWN/NOT REPORTED

Wind

320° / 10 kt

Aircraft history

Serial number

000000000404

Total time

430 hrs

Pilot

Certificate

Commercial — instrument

Total hours

140

Age

42

Probable cause (from PRE1982.MDB)

N BRAKES CKD OK.GREASY RESIDUE FOUND ON BRAKE DISC

Investigator remarks

OTR PLTS EXPD BRAKE FADE DRG TAXI BACK TO TIEDOW

Cause factors

  • 64/A/22 A
    PILOT IN COMMAND IMPROPER OPERATION OF BRAKES AND/OR FLIGHT CONTROLS Cause — pilot/personnel action
  • 70/J/CJ J
    AIRFRAME BRAKING SYSTEM (NORMAL SYSTEM) Joint cause
  • 84/J/G J
    MISCELLANEOUS FOREIGN MATERIAL AFFECTING NORMAL OPERATIONS Joint 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 3662. Source file NTSB_1973_3_3662.txt. Modern CAROL record on data.ntsb.gov ↗.