Atlas/ Pre-1982 Codebook/ VISIBILITY
NTSB · Form 6120.4
VISIBILITY
VISIBILITY
11 codes
- ** VISIBILITY AT ACCIDENT SITE
- A ZERO
- B 1/4 MILE OR LESS
- C 1/2 MILE OR LESS
- D 3/4 MILE OR LESS
- F 2 MILES OR LESS
- F2 2 MILES OR LESS
- G 3 MILES OR LESS
- H 4 MILES OR LESS
- I 5 MILES OR OVER (UNLIMITED)
- Z UNKNOWN/NOT REPORTED
Source
Codes verbatim from the ct_Pre1982 table of
PRE1982.MDB — the FAA-distributed pre-1982 NTSB
aviation accident database. Used internally by the Atlas to decode
legacy accident records on every pre-1982 NTSB event page.