MANILA — The Ninoy Aquino International Airport should be renamed to be easily identifiable as the Philippines' main terminal, President Rodrigo Duterte's congressman son said in a proposed law.

The NAIA should instead be called "Paliparang Pandaigdig ng Pilipinas," Deputy Speaker Paolo Duterte said in the bill, co-authored with Marinduque Rep. Lord Allan Jay Velasco and ACT-CIS party-list Rep. Eric Go Yap.

"With the proposed name, the airport will be easily identified as the international doorway of the country, in view of it being in Filipino language and branding it as the international airport of the Philippines," read the bill's explanatory note.

The airport was named after in ex-Sen. Beningo "Ninoy" Aquino Jr in 1987, a year after the People Power revolution that installed his widow Corazon Aquino as president and toppled the Marcos dictatorship.

Their son, former President Benigno "Noynoy" Aquino III, was the predecessor to the incumbent, Duterte. Aquino's Liberal Party is currently the political opposition.

The NAIA in 2018 was among the world’s “most improved” airports, according to survey released by London-based research firm Skytrax.

• NAIA among world's 'most improved' airports: Skytrax

— With a report from Cheche Diabordo, ABS-CBN News