Sơ đồ chỗ ngồi China Southern Airlines Airbus A350-900

Three-class China Southern A350-900 (csair.com internal designator "A350-900(359)"). China Southern publishes per-cabin seat counts and per-cabin pitch/width/recline/screen/power on its cabin-layout page: Business 28 (43" pitch, 23" width, 180° lie-flat), Premium Economy 24 (38" pitch, 18.8" width, 7" recline), Economy 262 (32" pitch, 17.5" width, 6" recline); power outlet in Business and Premium Economy, USB in all cabins (csair lists a generic "USB port"; modelled as USB-A, exact connector unstated). China Southern does NOT publish an exact row grid, so row numbering, column letters, cabin boundaries, door/exit positions, the over-wing span (rows 24-38) and the rear-fuselage taper (rows 48-49) are DERIVED from the published counts and standard A350-900 door/wing geometry (Business 1-2-1 rows 1-7 = 28; Premium Economy 2-4-2 rows 11-13 = 24; Economy 3-3-3 rows 20-47 = 252 plus a seven-abreast taper row 48 and a centre-only row 49 to reach 262). These structural placements are best-effort inferences, not published China Southern data; every cabin carries derived:true and windowAlignment is left "unknown" for window seats because a derived grid cannot prove a real window lines up (no A350 window grid exists, so windowGridType is omitted). Note (csair): on international routes the "Premium Economy Class" cabin is marketed as "Economy Class"; it remains physically premium economy (2-4-2, 38" pitch) and is modelled as canonicalTier premium_economy. Fleet: Wikipedia lists 20 A350-900 airframes across BOTH China Southern configs (this 314-seat three-class and the 335-seat two-class cz-359-335) without a per-config airframe split, so no per-config fleetCount is asserted.