ACC_INC_CLASS

• ** ACDNT/INCIDENT CLASSIFICATION
• A ACCIDENT-U.S. REG AIRCRAFT
• B ACCIDENT NO FLT U.S.REG ACFT
• C INCIDENT U.S.REG AIRCRAFT
• D INCIDENT NO FLT US REG ACFT
• E INCIDENT CLSD RCPT MSG-US A/C
• F ACCIDENT FOREIGN REG. ACFT
• G ACCIDENT-NO FLT-FORIN REG A/C
• H INCIDENT FOREIGN REG ACFT
• I INCIDENT-NO FLT-FORIN REG A/C
• J INCD-CLSD RCPT MSG FOR REG AC

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.