Incident: 3 March 2026, night flight towards Nancy, France. GEIPAN case 51734, class A: Starlink satellite reflections. Investigation dated 1 May; public summary updated 11 August 2026.
Two Mirage 2000D aircraft were returning towards Nancy when intense lights appeared repeatedly to the north-north-west. Their intermittent appearance, apparently changing number and lack of a reported radar counterpart led to an inquiry. Although the official case URL contains February, the investigation describes a March incident.
The aircrew account
The 12-page report places the beginning at approximately 22:10 UTC, or 23:10 French local time. The aircraft were at flight level 325. One to three bright points appeared for about 15–20 seconds at intervals estimated around a minute, over an overall period of about half an hour and a substantial stretch of the return route.
Four crew members were involved across the two aircraft, but one formal testimony underpins the published inquiry. No photographs were supplied. Seven requested radar checks were reported as finding no corresponding target out to the stated search range. That account is useful evidence about the checks requested, without providing an independent measured distance to the lights.
Range and geographical limits
The account contains different distance estimates, including figures of tens of nautical miles. These were uncertain estimates; they should not be converted into an object’s physical speed or size. GEIPAN instead examined the angular position and the way the lights appeared and disappeared.
The source also gives inconsistent starting coordinates. Its contextual description and route figure place the early observation near the Clermont-Ferrand area, whereas another coordinate table differs. UKPX therefore uses a broad locality reference for that part of the flight corridor and does not publish either pair as a surveyed sighting position.
The satellite assessment
GEIPAN’s reconstruction considered lights only a few degrees above the horizon, with the Sun well below it. It found the direction, solar geometry and repeated brightening compatible with Starlink satellites producing flares. The published comparison concerns the satellite population and viewing geometry; UKPX has not independently calculated orbital tracks or identified a particular spacecraft.
The official summary assigns class A. Preserving the formal testimony count, absent imagery and conflicting coordinates makes the source more useful than repeating an unexplained-aircraft headline. Its value lies in the documented transition from a puzzling aircrew observation to the agency’s stated orbital explanation.
Location and source record
Approximate Clermont-Ferrand locality reference for the southern part of the reported flight corridor, not an exact aircraft track, military base or light position. Coordinates follow the checked geographical reference.
UKPX reference added 6 November 2026. Incident year: 2026. UKPX read the linked official investigation and reviewed selected key figures; original witness media were not independently examined. Browse Historical Cases · More UFO / UAP / USO references.