The U.S. Navy has acknowledged the loss of an MQ-4C Triton last week in a new Mishap Summaries report released by the Naval Safety Command.
As we reported last week, a U.S. Navy MQ-4C Triton Unmanned Aerial System (UAS) disappeared from flight tracking websites over the Persian Gulf on Apr. 9, 2026. The aircraft indicated an emergency through the transponder and initiated a descent from its cruise altitude at 52,000 ft to 9,500 ft, where the signal was lost.
It was thus observed that the Triton might have crashed in the Persian Gulf, although it was not confirmed. We contacted the U.S. Central Command (CENTCOM), but they could not offer any comment at that time.
Now, on Apr. 14, the U.S. Navy has confirmed for the first time that indeed the MQ-4C has been lost. In fact, as first reported by The War Zone, the Naval Safety Command published a new Mishap Summaries report, mentioning the incident among the Class A flight mishaps:
9 Apr 2026 (Location Withheld – OPSEC) MQ-4C crashed, no injury to personnel.
The causes of the crash are not yet known, but an investigation is likely already ongoing. Among the possibilities there could be a likely equipment failure (the transponder signaled a loss of communication link before switching to general emergency) or less likely external interference/jamming.
Similarly, the location of the crash site is unknown, as the signal was lost as it passed 9,500 ft in the middle of the Persian Gulf headed towards Iran. Considering the rate of descent, it is unlikely that the Triton reached Iranian territory, but we can’t also exclude the possibility of U.S. fighters in the area being sent to shoot it down after determining that control could not be recovered.
It is unclear if the U.S. Navy is planning to recover the wreck, or if it has already started. However, in order to start the recovery operations, it is likely the U.S. Navy might have to conduct demining operations to create a safe passage for the involved vessels, after Iran said to have mined the Strait of Hormuz.
The incident
A U.S. Navy MQ-4C Triton Unmanned Aerial System (UAS) disappeared from flight tracking websites over the Persian Gulf on Apr. 9, 2026. Shortly before disappearing, the aircraft squawked 7400, the transponder code indicating a loss of the communication link with the remote pilot.
#USNAVY United States Navy – 🚨 7700 General Emergency
Northrop Grumman MQ-4C Triton 1x#AE7815 169804 – Unknown C/S
A US Navy MQ-4 drone operating over the Persian Gulf and Strait of Hormuz has declared an emergency en route back to Sigonella Naval Station.
At 0956z it made a… pic.twitter.com/xbqvrOby2t
— Armchair Admiral 🇬🇧 (@ArmchairAdml) April 9, 2026
The Triton, which was on its way back to Naval Air Station Sigonella, Italy, initiated a descent from its cruise altitude at 52,000 ft to 9,500 ft, where the signal was lost. The descent lasted just under 15 minutes and started shortly before Saudi Arabia’s coast.
Before disappearing, the squawk reportedly switched to 7700, which is the code for a general emergency. In the last phase of the descent, the drone also appeared headed towards Iran.
The MQ-4C Triton
The MQ-4C Triton is the Navy’s newest Intelligence, Surveillance, and Reconnaissance Maritime Patrol asset and augments the capabilities of the P-8 Poseidon maritime patrol aircraft. The aircraft is based upon the U.S. Air Force’s RQ-4B Global Hawk, while its sensors are based upon components of (or entire systems) already fielded in the DoD inventory, according to NAVAIR’s description.
Also known as Broad Area Maritime Surveillance (BAMS), the MQ-4C platform complements the P-8A Poseidon within the Navy’s Maritime Patrol and Reconnaissance Force family of systems. Aircrew gather and process surveillance information utilizing data fusion tools that integrate sensor data from multiple aircraft into a comprehensive networked picture to further assist in building an accurate threat representation.
After assembling lessons learned from Triton’s initial deployment to Guam in 2020, the MQ-4C received significant updates including an upgraded sensor suite. These enhancements increase Triton’s ability to provide a persistent maritime intelligence, surveillance, reconnaissance and targeting (MISR-T) capability.
The MQ-4C is believed to be a sort of Block 20 and Block 30 Global Hawk hybrid, carrying Navy payload including an AN/ZPY-3 multi-function active-sensor (MFAS) radar system. This gives the Triton the ability to cover more than 2.7 million square miles in a single mission that can last as long as 24 hours at a time, at altitudes higher than 50,000 ft, with an operational range of 8,200 nautical miles.
The Navy initially planned to procure 68 aircraft and 2 prototypes. However, the Joint Requirements Oversight Council (JROC) later re-assessed the MQ-4C Triton inventory requirement and scaled it down to 27 airframes.
VUP-19 achieved initial operation capability in September 2023 (two years later than initially planned) during its new deployment to Andersen Air Force Base. As the first Navy unmanned patrol squadron, the unit set a baseline for training Sailors and officers on the tactics, techniques and procedures of operating the MQ-4C Triton for future warfighting.
