5300 FUSELAGE STRUCTURE (GENERAL) 5301 AERIAL TOW EQUIPMENT 5302 ROTORCRAFT TAIL BOOM 5310 FUSELAGE MAIN, STRUCTURE 5311 FUSELAGE MAIN, FRAME 5312 FUSELAGE MAIN, BULKHEAD 5313 FUSELAGE MAIN, LONGERON/STRINGER 5314 FUSELAGE MAIN, KEEL 5315 FUSELAGE MAIN, FLOOR BEAM 5320 FUSELAGE MISCELLANEOUS STRUCTURE 5321 FUSELAGE FLOOR PANEL 5322 FUSELAGE INTERNAL MOUNT STRUCTURE 5323 FUSELAGE INTERNAL STAIRS 5324 FUSELAGE FIXED PARTITIONS 5330 FUSELAGE MAIN, PLATE/SKIN 5340 FUSELAGE MAIN, ATTACH FITTINGS 5341 FUSELAGE, WING ATTACH FITTINGS 5342 FUSELAGE, STABILIZER ATTACH FITTINGS 5343 LANDING GEAR ATTACH FITTINGS 5344 FUSELAGE DOOR HINGES 5345 FUSELAGE EQUIPMENT ATTACH FITTINGS 5346 POWERPLANT ATTACH FITTINGS 5347 SEAT/CARGO ATTACH FITTINGS 5350 AERODYNAMIC FAIRINGS