Complex sentence: The Batik Air 737 suffered structural and fire damage to its left wing and could also possibly have been a hull loss, but the 737 was repaired and returned to normal service with Batik Air in September 2016.
Split into simpler sentences: The Batik Air 737 suffered structural and fire damage to its left wing and is also possibly a hull loss. The 737 was repaired and returned to normal service with Batik Air in September 2016.