Pan Atlas had already broken into the London tendering market with its Lynxes on route 112, and from October 1989 won a three-year contract to operate the 107 (Queensbury - New Barnet Station). For this they acquired nine new Olympians with Northern Counties bodywork. Oddly these were given fleetnumbers AB61-AB69 NOT in sequence with their registrations. Livery was brilliant white with blue/red flashes.
One retired hurt on its third day of service: G762UYT had a collision and returned to Wigan for major body repairs. Otherwise the buses settled down, working mostly on the 107 from their base in Harlesden, with occasional forays on the 112.
Atlas Bus also bought another Olympian the following year (along with a secondhand Fleetline). The Olympian was an ex-Leyland demonstrator, with Leyland bodywork to the ECW pattern. It was intended to cope with an extra requirement on the newly extended 112, but inevitably worked on the 107 as well.
In the event PanAtlas kept the 107 contract for five years, and then lost it to Metroline from October 1994. In the run-up to that changeover, in August 1994, Pan Atlas sold the Atlas Bus operation to the Pullmans Group - a subsidiary of London Coaches. The Olympians seem not to have gone with the deal, and promptly reappeared with United Automobile Services that August, leaving the new management at Atlas Bus to operate the 107 with Lynxes and hired Metrobuses until Metroline took over in November.