). LOWER CHORD WBL 254 TO 358 UPPER CHORD WBL 280 TO 327 MOS HRS/MSC REF: DTR 57-53-26-2 AFL 56030 56000 55078 57-53-27-1 INSPECT REAR SPAR. OUTBOARD FLAP AFT FLAP TRACK CUTOUTS N2 AND #3 PSE MOS HRSAISC REF: DTR 57-53-27-I AFL 56030 56000 55078 57-53-27-2 INSPECT REAR SPAR. OUTBOARD FLAP REAR SPAR UPP