On 23 November 1976 it was being operated by a NAMC YS-11A turboprop airliner registered in Greece as SX-BBR when it collided at an altitude of 4,625 feet (1,410 m) with a mountain near Servia and crashed, killing all 50 on board.

[1] When the aircraft was unable to land at Larissa due to bad weather it elected to fly directly to Kozani at an altitude of 5500 ft.

The last radio contact was at 09:45 when the pilot reported he was about 15 nm South of Kozani on a heading of 318 degrees, he was given the weather forecast.

[1] Investigation showed that the aircraft was on a heading of 310 degrees when it first struck the ground, it disintegrated over the next 200 metres before becoming shortly airborne again, finally crashing at the foot of another hill.

Fire had broken out after the initial impact and continued to burn for several hours destroying the aircraft.