Arriving on it's first cargo run of the day to the Baliem Valley region in Papua province. Over the years, this 1986 built airframe carried registrations N5573K (for testflying), then B-2522 with China Southwest Airlines, Air China and Okay Airways, before becoming N23451 and finally PK-YSZ with Trigana around 2011. It was damaged beyond economical repair after a landing accident in Wamena on July 27, 2020. As of January 2024, Trigana operates eight 737-300 as freighters, plus one single 737-500 and six ATR42/72 in the passenger role.

Ex Air China/OK Airways B-2522, returned to lessor as N23451 28th July 2010, converted to freighter Dec 2010 and registered to Trigana as PK-YSZ 17th Dec 2010