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Atlas / NTSB / IAD75FIG03

NTSB CAROL · Event

Event IAD75FIG03

1974-08-20 LAYTONSVILLE, Maryland, United States Fatal 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

AMER AVCO AA1-B · N9946L

Damage

Substantial

Craft type

Airplane

Classification

Accident

Light condition

Night

Weather

VMC

Phase of flight

Takeoff — initial climb (C1)

Operator type

D

Airport

BUTTS FARM

Kind of flying

B0

Weather at impact

Sky

SCATTERED-ABOVE 1000 FEET

Aircraft history

Serial number

000000003246

Total time

3,740 hrs

Pilot

Certificate

Commercial

Total hours

248

Age

26

Probable cause (from PRE1982.MDB)

5FT TO CLR 50FT OBSTACLE.TREE 2040FT FM PT OF DEP.

Investigator remarks

ACFT ABT 15LB OVR G/W.OWNERS MANUAL-HARD SFC 191

Cause factors

  • 64/A/29 A
    PILOT IN COMMAND INADEQUATE PREFLIGHT PREPARATION AND/OR PLANNING Cause — pilot/personnel action
  • 64/A/17 A
    PILOT IN COMMAND MISJUDGED DISTANCE,SPEED,ALTITUDE OR CLEARANCE Cause — pilot/personnel action
  • 80/J/BI J
    AIRPORTS/AIRWAYS/FACILITIES HIGH VEGETATION Joint cause
  • 83/J/I J
    TERRAIN HIGH OBSTRUCTIONS Joint cause
  • 64/1/80 1
    PILOT IN COMMAND SELECTED WRONG RUNWAY RELATIVE TO EXISTING WIND Subordinate · 1
  • 88/1/AQ 1
    MISCELLANEOUS ACTS,CONDITIONS DOWNWIND Subordinate · 1

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 2774. Source file NTSB_1974_3_2774.txt. Modern CAROL record on data.ntsb.gov ↗.