Lego produced two kinds of airline promotional sets over the years. First, there were full-on exclusives with actual branding from real-life, existing airline companies (for the most part, unique decals and stickers sets). Lego worked with companies like Lufthansa, Air Canada, Martinair (NE), Sterling Airways, and British Airways.

In the nineties, they also created an abstract design for imaginary Lego Town airlines. These sets were still in-flight exclusives for the most part, just not restricted to a specific carrier. Unlike 'Octan,' this supposed Lego Airlines didn't have any name, just a silhouette or a passenger jet ascending over bright skies for a logo.

A few models came with this design, including a set no. 1772 'Airport Container Truck.' A typical Lego Town cargo truck has an original raising platform in the back (made of two hinge plates) and comes with two large unified containers; each can fit two standard 2x2 boxes. A casually dressed driver operates it.

The build is 99% exact, with only two missing parts (and no stickers, obviously). On top of that, I just had to replace a 1x4x3 window (part #3853) with a different 1x4x3 frame to make proper shutters.

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==Lego Airline Promotional Sets Timeline==
(Courtesy of @rustem, @SafePit, @Batka, @Sebsan21)

[1988] 611-2: Air Canada Jet Plane
https://www.mecabricks.com/en/models/eDa5b1MX2zg

[1991] 1773-1: Airline Maintenance Vehicle with Trailer
https://www.mecabricks.com/en/models/LyjWwNBnjJr

[1991] 1774-1: Aircraft
https://www.mecabricks.com/en/models/KbjQyGEkjdG

[1996] 1808-1: Light Aircraft and Ground Support
https://www.mecabricks.com/en/models/mkjAZZwlvZG

[1996] 1817-1: Sea Plane with Hut and Boat
https://www.mecabricks.com/en/models/9P2k3wKY2on

[1996] 1818-1: Aircraft and Ground Support Equipment and Vehicle
https://www.mecabricks.com/en/models/WRaZpZPZjpZ

[1999] 2774-1: Red Tiger
https://www.mecabricks.com/en/models/bJ2b6OrE2yB

[2001] 1100-1: Sky Pirates
https://www.mecabricks.com/en/models/b82xNpBJv1z

[2003] 4032-1: Holiday Jet (Lego Air Edition)
https://www.mecabricks.com/en/models/Qb82x0qp21z

[2004] 7214-1: Sea Plane
https://www.mecabricks.com/en/models/zOjodEwov6Z

[2005] 4778-1: Desert Biplane
https://www.mecabricks.com/en/models/nKZvmBk9aG6

[2006] 2928-1: City In-Flight
https://www.mecabricks.com/en/models/beDa5RZX2zg

[2007] 2064-1: Rescue Plane
https://www.mecabricks.com/en/models/WPkaJ1ENvxM

[2008] 2230-1: Helicopter and Raft
https://www.mecabricks.com/en/models/QeDvVNQwvBR

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==MISSING PARTS==

https://rebrickable.com/parts/3324ac01/hinge-plate-2-x-9-with-hole-close-to-hinge-complete-assembly/
https://rebrickable.com/parts/3856/window-1-x-2-x-3-shutter/
https://rebrickable.com/parts/1772stk01/sticker-for-set-1772-cargo-truck/