Atlas/ Pre-1982 Codebook/ TERRAIN_TYP
NTSB · Form 6120.4
TERRAIN_TYP
TERRAIN_TYP
14 codes
- ** TERRAIN
- A MOUNTAINOUS
- B HILLY
- C ROLLING
- D LEVEL, FLAT
- E FROZEN
- F ROCKY
- G SANDY
- H DENSE WITH TREES
- I CITY AREA
- J PLOWED
- K WATER-LAKES RIVERS, ETC
- Y OTHER
- 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.