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