Direct proof of use
The directly documented conflict appearance is a 91N6E radar from the S-400 Triumf system, treated here as part of the broader 91N6-family radar record. On August 29, 2025, Ukraine's Defence Intelligence Directorate said its Active Operations Department struck a Russian 91N6E radar complex in temporarily occupied Crimea overnight on August 28.
Ukrainian and English-language reporting repeated the DIU/HUR attribution and identified the target as part of a Russian S-400 Triumf air-defense system. The Kyiv Independent noted that the released black-and-white footage purported to show the strike and that it could not independently verify the claim.
Sources: DIU 91N6E Crimea Strike, Suspilne Crimea 91N6E Strike, Kyiv Independent 91N6E Crimea Strike
Timeline
The documented event falls in the war's post-2022 full-scale phase, when Crimea remained a recurring target for Ukrainian strikes against Russian air-defense and naval infrastructure. DIU/HUR dated the 91N6E strike to the night of August 28, 2025, and published the announcement and video page on August 29.
Suspilne reported the same date and target, while adding that Russian authorities had reported drone activity over Crimea and the Black Sea that night. That Russian statement supports the broader attack context but does not itself identify the 91N6E radar.
Sources: DIU 91N6E Crimea Strike, Suspilne Crimea 91N6E Strike
Narrative
The 91N6E is the S-400 radar system used to detect and track aerodynamic and ballistic targets, determine nationality, and feed radar information to the 55K6E combat control post. In the Crimea incident, the radar's documented role was Russian air-defense surveillance and battle-management within the S-400 system rather than an independent strike weapon.
The available public record supports a narrow claim: a Russian 91N6E radar from an S-400 system was reported struck in occupied Crimea during the 2014 Russia-Ukraine War. It does not independently prove that every 91N6A-family subtype listed on the parent weapon page was present in the same incident.
Sources: S-400 Triumph, DIU 91N6E Crimea Strike, Kyiv Independent 91N6E Crimea Strike