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

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

Another plane that seemingly doesn't belong here: FlyDubai 737 MAX8 departing Portland Int'l Airport #KPDX. This plane is brand new and not yet delivered to the airline. It arrived at the Boeing Portland Paint Hangar on Oct 17 from the Boeing 737 factory in Renton #KRNT. This is probably the plane's second flight. I'm guessing customer pilots are doing a "C1" acceptance flight test since Boeing test pilots already tested it and it's in eastern Washington for maneuvers. #aviation #travel #avgeek

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

Spotted from home today in Portland: a brand new green unpainted Boeing 737 MAX8 on approach to Portland Int'l #KPDX on the aircraft's first flight out of the Boeing factory at Renton #KRNT. Each one is a new puzzle: I think this one is going to Norwegian Air Sweden due to the pre-painted rudder (with Norwegian Air Shuttle pattern) and the ADS-B data (indicating Swedish registration). It taxied to the Boeing Portland Paint Hangar. #UnpaintedAirplane #PicklePlane #aviation #avgeek #PNW

Planespotting from home this afternoon, I got pics of a brand new green Boeing 737 MAX8 inbound from the 737 factory in Renton #KRNT. It was on final approach to Portland Int'l #KPDX. After landing, ADS-B showed it taxied to the Boeing Portland Paint Hangar as expected. The pre-painted rudder looks like this plane's buyer is SCAT Airlines of Kazakhstan. ADS-B data agreed, showing a KZ reg. I saw another SCAT arrive May 31 & leave June 12. #UnpaintedAirplane #PicklePlane #aviation #avgeek #PNW