EMGCY_LOCATOR_TRANS

• ** EMERGENCY LOCATOR TRANSMITTER
• 0 OPERATED-USED IN LOCATING A/C
• 1 OPERATED-NOT USED
• 2 NOT USED-NOT ARMED
• 3 NOT USED-SEPN FROM ANTENNA
• 4 NOT USED-BATTERY MALFUNCTION
• 5 NOT USED-OTHER MALFUNCTION
• 6 NOT USED-IMPACT/FIRE DAMAGE
• 7 NOT USED-OPERATION UNKNOWN
• 8 NOT INSTALLED
• 9 NOT APPLICABLE/INSUFFICIENT IMPACT
• A INSTL-FIXED-USED-EFFECTIVE
• B INSTL-FIXED-USED-INEFFECTIVE
• C NOT INSTALLED
• D INSTL-PORT-USED-EFFECTIVE
• E INSTL-PORT-USED-INEFFECTIVE
• 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.