Pemco World Air Services has redelivered its 100th Boeing 737-300 converted aircraft, which was modified for SF Airlines.

The 100th B737-300 conversion marks the 16th -300/-400 PEMCO-converted aircraft for SF Express-owned SF Airlines with three more planned in 2016.

SF Airlines vice president Liang Xi said: “Since inducting the first B737 Classic in 2011, SF now operates 13 Classics all converted under [certificates].

“We’re very grateful for Pemco’s excellent STC program and continued support. By the end of the year, we expect the B737 Classic to surpass the B757 to become the largest SF fleet.”

Pemco’s B737-300 conversion program started in 1991 with launch customer L'Aeropostale (acquired by ASL Aviation Group).

For 25 years, PEMCO has provided B737-300 full-freighter and quick change conversions for customers all over the world, including China Postal Airlines EMS, Kahala Aviation, Swiftair, TNT Express, and Yangtze River Express Airlines.

“I started with PEMCO in 1988 as an A&P mechanic on the conversion program and I’m proud to see what our program has become – a global leader in narrow-body freighter conversion,” said Mike Andrews, director of conversion programmes. “I’m happy to celebrate our 100th conversion with longtime partner SF Airlines.”

Since 2006, PEMCO has redelivered over 50 B737-300 and -400 freighter modification projects to Chinese operators.

Pemco chief executive Pastor Lopez and vice president of maintenance Shane King joined Andrews in Jinan Shandong, China, to celebrate the 100th conversion.

Those on hand to celebrate the event included partner STAECO and customers China Postal Airlines EMS, Longhao Aviation Group, SF Airlines, and YTO Express Airlines.