FLAP FWD SPIGOT FITTING. WBL 254 AND 358 PSE MOS HRS/MSC REF: DTR 57-53-31 AFL 56000 56000 55078 57-53-32 INSPECT REAR SPAR SPIGOT FITTING. OUTBOARD FLAP AFT SPIGOT FITTING ASSY. WBL 254 AND 358 PSE MOS HRSAISC REF: DTR 57-53-32 AFL 56000 56000 55078 57-53-35 INSPECT AFT FLAP TRACK SUPPORT RIBS. OUTBOARD FLAP AFT FL