Relier Pairs AVIATION ABBREVIATIONSVersion en ligne Match the abbreviation with the correct meaning. par Steven Rafael Torres Orozco 1 LB 2 FT 3 SL 4 P/N 5 SRM 6 S/N 7 SB 8 P.S.I 9 AD SERVICE BULLETIN FOOT PRESSURE SQUARE INCH PART NUMBER SERVICE LETTER SERIAL NUMBER POUND STRUCTURAL REPAIR MANUAL AIRWORTHINESS DIRECTIVE