The P-3 Orion Airborne Early Warning Aircraft Has Flown Its Last Mission

U.S. Customs and Border Protection (CBP) has retired the last of its P-3 Airborne Early Warning (AEW) aircraft. The AEW version is instantly recognizable from the saucer-like radar dome on top, as seen on other AEW types like the E-2 Hawkeye and the E-3 Sentry. CBP was the only operator of this variant of the P-3 Orion and is said to have been the only law enforcement agency to fly any kind of dedicated AEW plane. The retirement of these aircraft comes at a time when American AEW assets, in general, are under heavy strain by demands globally.

CBP officially retired its final P-3 AEW on September 30, 2026, after a final flight from National Air Security Operations Center Jacksonville (NASOC Jacksonville), in Jacksonville, Florida. CBP has also flown Long Range Tracker (LRT) variants of the P-3, configured for more traditional maritime surveillance missions. The current plans for the LRT aircraft, and whether their sunset may also be on the horizon, are not immediately clear, and TWZ has reached out for more information. Orions of all types have been steadily disappearing from service with the U.S. military and elsewhere across the U.S. government as the aging aircraft become more difficult to operate and maintain.

End of the Road: AMO’s Iconic P-3 Dome Takes Its Final Flight!

On September 30, 2026, the distinct silhouette of a four-engine turboprop carrying its massive rotating radar dome touched down for the final time at the National Air Security Operations Center in Jacksonville.

Our… pic.twitter.com/doT9TZYJzD

— CBP AMO (@CBPAMO) October 1, 2026

“Our Jacksonville-based P-3 AEW fleet has served as a cornerstone of America’s outer-layer border security,” according to a brief announcement from CBP about the retirement on social media. “Its crews flew far beyond our borders, providing wide-area surveillance across the Caribbean, Gulf of America [Gulf of Mexico], and the transit zones of Central and South America, helping detect and track threats before they could reach the United States.”

By all indications, including official CBP sources, the P-3 AEW fleet consisted of eight aircraft at its peak. There is a confusingly worded 2014 CBP press release that mentions an “11th and final Lockheed Martin P-3 Airborne Early Warning (AEW) aircraft overhaul,” but that figure looks to also include three of the six LRT versions. The same release says that CBP only had 14 P-3s of all types at that time.

What was then known as the U.S. Customs Service (USCS) first began operating the P-3 AEW version in the late 1980s. The aircraft were converted from second-hand maritime patrol variants of the Orion. The first example had started life as a P-3B for the Royal Australian Air Force (RAAF). Ex-U.S. Navy P-3s were also converted.

A picture of a P-3 AEW in USCS service circa the late 1980s. CBP

The initial three P-3 AEWs were equipped with the AN/APS-138 radar. The same radar was used on early E-2C Hawkeye airborne early warning and control aircraft operated by the U.S. Navy, as well as several other armed forces internationally.

“The Customs Service had previously borrowed U.S. Navy E-2Cs to meet its antinarcotics surveillance requirements, but required an aircraft with longer range and on-station time,” according to a 2006 report from Forecast International. “In June 1989, the U.S. General Accounting Office issued a report on the drug interdiction P-3B AEW aircraft. The findings indicated that the radar performance was as specified, but the P-3B (when compared to the E-2C) was less costly to operate per square mile of area covered because of the higher cruising speed and longer endurance. The P-3B had at least twice the in-flight endurance of the E-2C.”

Starting in the 1990s, USCS began the process of acquiring additional P-3 AEWs with newer AN/APS-145 radars, as also used on later model E-2Cs. The original AEW Orions were eventually refitted with APS-145s, as well. It’s worth noting here that the U.S. Coast Guard separately moved to acquire an AEW version of the C-130H, designated the EC-130V, in the 1990s, which used the AN/APS-125 radar, also used on older E-2s. Budget cuts led to the end of that program. The EC-130V that had been built was redesignated as an NC-130H and subsequently used for test purposes.

A US Navy E-2C Hawkeye. USN The NC-130H test aircraft with its radar dome still on top. US Military

The P-3 AEWs were also equipped with a sensor turret containing electro-optical and infrared (EO/IR) video cameras, allowing the aircraft to more closely investigate targets spotted on radar. CBP regularly conducted P-3 operations that paired AEWs with LRT variants to provide an even broader array of sensor capabilities on missions. The LRTs have EO/IR sensor turrets, as well as AN/APG-66 and SeaVue radars. The pulse-doppler AN/APG-66 is primarily designed for spotting and tracking aerial targets, and was originally used on early variants of the F-16 fighter. SeaVue is a multi-function type with surface search and synthetic aperture radar (SAR) imagery modes. Images produced via SAR are highly detailed maps of the surface below, and can be captured day or night, and regardless of any cloud cover, smoke, or dust. 

Beyond radars and other sensors, the P-3 AEWs also had a robust communications suite consisting of VHF and UHF radios, as well as satellite communications links by the end of their career. CBP’s entire P-3 fleet, including the AEWs and LRTs, has received various updates over the years, including new ‘glass cockpits’ starting in the early 2000s.

Though primarily employed in support of counter-narcotics interdiction operations, the airborne radar and command and control capabilities w

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