2023 Philippine airspace closure
airspace closure
On January 1, 2023, at 9:49 a.m. Philippine Standard Time (1:50 a.m. UTC), the Civil Aviation Authority of the Philippines (CAAP) detected issues with its Air Traffic Management Center (ATMC) at Ninoy Aquino International Airport (NAIA) in Pasay, Metro Manila. Electrical problems brought the center's radios and radars offline. Shortly after, nearly all flights towards major airports in the Philippine airspace were put on hold or diverted. Flights that were about to enter the Philippine airspace were either diverted to neighboring countries, returned to point of origin, or rerouted to neighboring airspaces. By noon, no commercial aircraft were inside the Philippine airspace. Around 282 flights to and from various Philippine airports and over 56,000 passengers, many of whom were travelling to or from the country following the New Year's Day holiday, were affected.
The electrical problems were traced back to the power substation of NAIA Terminal 3. A cooling fan for one of the ATMC's uninterruptible power supplies (UPS) had failed and a backup power supply did not start, cutting power to the building.
This brief starts where responsible research should: with the source description of “2023 Philippine airspace closure” as airspace closure. Everything that follows is an evidence route, not borrowed authority.
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The subject matters to the general reference register because the source frames it as airspace closure. Its deeper value depends on whether names, dates, institutions and citations support that framing.
Named sources, stable identifiers and responsible institutions provide the strongest route from overview to verifiable evidence. The source revision retrieved here is dated Sep 19, 2026. The linked authority identifier is Q115950192. None of the 0 selected statements returned an explicit reference. The first chronological checks are 2023.
The absence of detail may reflect summary conventions rather than a lack of surviving documentation. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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This entry incorporates text from “2023 Philippine airspace closure” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.