diff --git a/data/dicts/aviation.csv b/data/dicts/aviation.csv
index 0cf0d0f5..24707c72 100644
--- a/data/dicts/aviation.csv
+++ b/data/dicts/aviation.csv
@@ -1,5 +1,6 @@
 TERM,MEANING
 3P,"Perceive, Process, Perform"
+5LNC,Five Letter Name Codes
 5P,"Plan, Plane, Pilot, Passengers, Programming"
 7500,"Transponder code for Aircraft hijacking (ICAO)"
 7600,"Transponder code for Radio failure (lost communications, ICAO)"