BRP Bonny Serrano (PC-111) was a Tomas Batilo-class fast attack craft of the Philippine Navy. It is part of the first batch transferred by the South Korean government on 15 June 1995, and arrived in the Philippines in August 1995. It was commissioned with the Philippine Navy on 22 May 1996,
It was upgraded under the Patrol Killer Medium-Republic of the Philippines (PKM-RP) Program of 2006 by Propmech Corp., the program includes the reinforcement of its hull, replacing the engines, radar, navigation and communication systems, and changing the weapons fit-out to include crane and space for rubber boats. The upgrades were completed in 2008.
The ship was part of the Philippine Navy contingent during the US-Philippines CARAT 2008 sea-phase exercises.[1]
In April 2016, in line with the Philippine Navy Standard Operating Procedures #08, the boat was reclassified as the BRP Bonny Serrano (PC-111) as a patrol craft.
The patrol craft was among the sea and air assets decommissioned and deactivated by the Philippine Navy on 17 December 2020.
The ship was originally powered by 2 MTU MD 16V 538 TB90 diesel engines with total output of 6,000 horsepower. From 2007, Propmech was contracted to replace the old engines with new Caterpillar 3516C diesel engines with a total output of 6,300 horsepower.
The ship was equipped with a Koden Electronics MDC 1500 Series navigation and surface search radar, which replaced the previously installed radar during the refurbishing works in 2007.