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Atlas / NTSB / OAK77DVW19

NTSB CAROL · Event

Event OAK77DVW19

1977-05-14 BOULDER CITY, Nevada, 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

SCHWEIZER SGS-1 · N3831A

Damage

Substantial

Craft type

C

Classification

Accident

Light condition

Dawn

Weather

VMC

Phase of flight

EE

Operator type

D

Airport

BOULDER CITY MUNI

Kind of flying

B0

Weather at impact

Sky

SCATTERED-ABOVE 1000 FEET

Wind

210° / 20 kt

Temp

85° F

Aircraft history

Serial number

000000000098

Total time

850 hrs

Pilot

Certificate

Airline transport

Total hours

360

Investigator remarks

MONOWHEEL LDG GR.

Cause factors

  • 64/C/80 C
    PILOT IN COMMAND SELECTED WRONG RUNWAY RELATIVE TO EXISTING WIND Cause
  • 64/C/46 C
    PILOT IN COMMAND MISJUDGED DISTANCE AND SPEED Cause
  • 84/L/7 L
    MISCELLANEOUS EVASIVE MANEUVER TO AVOID COLLISION

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 0878. Source file NTSB_1977_3_0878.txt. Modern CAROL record on data.ntsb.gov ↗.