EASA AD 26-085
Navigation – GLU-2100 Global Navigation Satellite System Clock Oscillator – Operational Limitation
EASA Airworthiness Directive PAD No. 26-085 is a proposed directive addressing an operational limitation for the GLU-2100 Global Navigation Satellite System Clock Oscillator installed on Airbus A350-941 and A350-1041 aeroplanes. It identifies certain affected GLU-2100 units with specific part and serial numbers that may cause erroneous aircraft position information without warning. The directive applies to all manufacturer serial numbers of these aircraft models.