Communication Breakdown
Deviation / Discrepancy - Procedural Hazardous Material Violation; Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural Weight And Balance
Flight Crew Returned To Gate; General Flight Cancelled / Delayed
Company Policy; Human Factors; Procedure
I was working Aircraft X as an upgrade lead on Gate in ZZZ; and there was a quick pack box in the gate cart; when time to scan it the scanners went out when I tried to load it then the scanners came back on a few minutes to departure and when I scanned the quick pack box it didn't show me specifically that it was a hazmat after the scanner started working; so after the trip went out I was informed to contact load plan; then the Supervisor came in to confirm that it wasn't a hazmat after calling cargo; and cargo told him it wasn't a hazmat; then after the trip left then the Supervisor called load plan afterwards; and they told him it was and that the aircraft had to return to secure the hazmat.
Air Carrier Ground Personnel reported a Hazmat load configuration error after gate departure. The aircraft was summoned to departure gate to correct load configuration error.