French civil-aviation authorities (DSNA) issued NOTAM F2049/26 covering Toulon–Hyères (LFTH) that remains active until 03:00 UTC on 12 October. The notice alerts crews to possible GNSS interference within a 246 nautical-mile radius of coordinates 43°05′50″ N 06°08′46″ E—essentially the busy airspace over the Côte d’Azur and parts of the western Mediterranean. Scheduled jamming windows were 04:00–07:00 UTC on 10 October, 20:00–23:59 UTC on 11 October and midnight-to-03:00 UTC on 12 October, aligning with the final sorties of the French Air & Space Force’s annual electronic-warfare exercise “Black Crow 26.” Aircraft are instructed to report any loss of RNAV capability to Toulon Approach on 126.325 MHz or 118.825 MHz. While most commercial flights rely on inertial or DME-DME fall-back navigation, business-aviation operators using satellite-based approaches into Cannes Mandelieu (LFMD) or Nice LFMN faced potential rerouting or higher fuel burns due to added separation buffers. Helicopter transfer firms serving the Monaco business district pre-emptively raised transfer prices by 15 % to cover longer routings during the jamming windows. The incident underscores a broader trend: France recorded nine GNSS-interference NOTAMs in 2026, up from four in 2025, as military exercises increasingly simulate contested electromagnetic environments. Mobility planners organising executive flights to the Riviera during Cannes trade-fairs or shipyard visits should monitor NOTAM feeds and file flight plans early to secure scarce alternate slots at Marseille or Toulon.
Source: DSNA NOTAM via Aerobreak
