EASA AD 2026-0163
Navigation – GLU-2100 Global Navigation Satellite System Clock Oscillator – Operational Limitation
EASA Airworthiness Directive 2026-0163 is an operational limitation directive affecting Airbus A350-941 and A350-1041 aeroplanes. It addresses issues with the GLU-2100 Global Navigation Satellite System Clock Oscillator, specifically certain units with untested oscillators that may cause erroneous position information. The directive prohibits operation and installation of affected GLU-2100 units unless modified according to Collins Aerospace instructions.