WestJet Boeing 787-9 seat map

SOLE CURRENT CONFIGURATION: WestJet's current fleet page lists seven Boeing 787-9s at 320 seats and links one 787-9 layout; WestJet's aircraft page publishes one three-cabin configuration, and the neutral WestJet fleet table corroborates all seven current aircraft at 16 Business / 28 Premium / 60 Extended Comfort / 216 other Economy = 320. The nine future 787-9 orders are not currently flying and do not establish a second active layout. PUBLISHED ROW GRID: WestJet's own 800x2975 seat-map image and accompanying seat table define Business rows 1-4 (A/D/F/K = 16), Premium rows 5-8 (A/C, D/E/F, H/K = 28), and Economy rows 9-40. Economy reconciles exactly: Extended Comfort = rows 9-14 at 9 seats plus centre D/E/F in rows 15-16 (54+6=60); Preferred Economy = wing triples in rows 15-16 plus nine-abreast rows 17-24 plus centre D/E/F row 25 (12+72+3=87); Standard Economy = centre D/E/F row 26 plus nine-abreast rows 27-39 plus centre D/E/F row 40 (3+117+3=123); Exit Row = outer triples in row 26 (6). The 87 Preferred + 123 Standard + 6 Exit seats remain canonical Economy, giving 216Y alongside 60N. PRIMARY CONFLICT / AUTHORING §5b: the aircraft page's text says rows 27-40 are all ABC/DEF/HJK, but the published diagram draws row 40 as centre D/E/F only. Treating row 40 as full would create 282 Economy and 326 total seats. WestJet's explicit 276 Economy / 320 total numbers take precedence and agree with the diagram, so row 40 is modelled as D/E/F only and layoutProvenance is mixed. MODELLING: WestJet explicitly calls Business, Premium and Economy its three separate cabin types, so Extended Comfort, Preferred and Exit Row are zones within the one Economy cabin rather than invented cabins. Only the branded 60-seat Extended Comfort section resolves to extra_legroom_economy for the computed summary; Exit Row is a location-priced seat type within the remaining 216 Economy seats. Row-specific recline exceptions (row 14 sides, row 16 centre, row 24 centre), bassinets, exits, lavatories and wing outline are read from the published page/map. No cabin, row or monument is marked derived because the reconciled row 40 placement is explicitly drawn on the map. Business pod hardware manufacturer/model is not stated by the cited WestJet pages and is omitted. WINDOW EPISTEMICS: the schematic does not draw physical window apertures and the corpus has no 787-9 engineering window grid, so windowGridType is omitted and every window-position seat remains windowAlignment unknown.