She underwent a modernisation program at the Ladario Riverine Naval Base between January 1998 and 6 May 1999, during which her original reciprocating engine was replaced with diesel engines to increase her range and endurance. One of her original engines was placed on display at the Sixth Naval District's Lieutenant Maximiano Memorial Hall. A helicopter platform has been fitted over the fantail, allowing her to operate the IH-6B Bell Jet Ranger III, replacing the Eurocopter AS350.
