I got ~6mi/10km distant pictures of #UnpaintedAirplane Boeing 737 MAX8 N839AK as BOE866 on downwind leg of its approach to Runway 10R at Portland Int'l Airport #KPDX. This is a brand new plane on its "B1" flight (first flight of the airframe flown by Boeing test pilots) out of the factory in Renton #KRNT. The pre-painted rudder shows this plane will go to Alaska Airlines. I had not previously seen any Alaska planes coming to PDX for paint. #PicklePlane #aviation #travel #avgeek #PNW

Spotted at PDX this morning: green #UnpaintedAirplane Boeing 777-200LR freighter on its first flight out of the Everett PAE factory, seen here approaching Portland Int'l Airport PDX for painting. The rudder was not pre-painted, eliminating one hint which airline it will go to. ADS-B telemetry indicated this plane is for a customer in UAE. When combined with the list of current 777F orders, that narrows it down to Emirates SkyCargo. #PicklePlane #KPDX #aviation #travel #avgeek #PNW

Spotted at PDX this afternoon: green #UnpaintedAirplane #PicklePlane Boeing 737 MAX8 on its first flight out of the Renton factory, arriving at Portland #KPDX as Boeing 508 for painting at the Boeing paint hangar. The pre-painted rudder indicates this plane will go to American Airlines. And ADS-B telemetry also indicated AAL. #KPDX #aviation #travel #avgeek #PNW

Spotted arriving at PDX today: green/unpainted Boeing 737 MAX8 as BOE242 on final approach to Runway 28L. The pre-painted rudder looks like AeroMexico, though missing the stripes of standard livery. It transmitted ADS-B data indicating this plane will be registered in Mexico. This is the first flight of the aircraft, coming from the Boeing 737 factory in Renton #KRNT to the Boeing Portland Paint Hangar. #KPDX #UnpaintedAirplane #PicklePlane #aviation #avgeek #PNW

Planespotting at PDX today: new green Boeing 737 MAX8 arrived as BOE941 on this aircraft's first flight out of the Renton factory, coming to Portland for painting. The pre-painted rudder indicates this plane was ordered by Oman Air. Also, before it arrived I saw Oman registration indicated on ADS-B tracking. #KPDX #UnpaintedAirplane #PicklePlane #aviation #avgeek #PNW

I got pictures of a brand new Boeing 737 MAX8 on final approach to Portland Int'l Airport #KPDX. This is the recurring theme of 737 MAX planes arriving for painting in Portland. It's flown by Boeing test pilots on its first flight out of the Boeing Renton #KRNT factory. The mystery each time we see one of these is what airline it's going to. This time the pre-painted rudder indicates the customer is American Airlines. #UnpaintedAirplane #PicklePlane #aviation #avgeek #PNW

I spotted an Oman Air Boeing 737 MAX8 in OneWorld special livery as it departed Portland Int'l Airport #KPDX. This brand new plane is still owned by Boeing, flying to Boeing Field #KBFI in Seattle for customer delivery. I posted pictures of this same aircraft on Sept 4 when it arrived as an #UnpaintedAirplane #PicklePlane on its first flight. It was painted during the 12 days it was in Portland. #aviation #business #travel #avgeek #PNW

Something you don't see every day in Portland #KPDX... a Boeing 737 MAX8 of Norwegian Air Sweden. Except I already posted pics of this plane here. It arrived August 18 on its B1 flight as a green #UnpaintedAirplane #PicklePlane. Now out of the Boeing Portland Paint Hangar on its second flight, it could be customer pilots testing on its C1 flight. It did two trips around the pattern at PDX before departing north to Boeing Field #KBFI in Seattle for customer delivery. #aviation #avgeek #PNW

Flights with indirect routing like today's are a big hint that a plane coming from Renton #KRNT to Portland #KPDX will probably turn out to be a new unpainted green plane on its first flight. Boeing test pilots fly out to eastern Washington State while putting the plane through the "test card" checklist. Many things to verify as working properly before they hand off a new aircraft to the customer's line pilots. https://www.flightaware.com/live/flight/BOE940/history/20250904/1615Z/KRNT/KPDX #UnpaintedAirplane #PicklePlane #aviation #avgeek #PNW

This afternoon I spotted a green unpainted Boeing 737 MAX8 on approach to Portland #KPDX, coming from the Boeing 737 factory in Renton #KRNT. It was probably the plane's first flight. Callsign was Boeing 940. After landing it taxied to the Boeing Portland Paint Hangar. The pre-painted rudder and winglets look like this plane's customer is Oman Air. ADS-B also showed OM registration. #UnpaintedAirplane #PicklePlane #aviation #avgeek #PNW