UNAT held that the Appellant had failed to submit his appeal to the AJAB in accordance with the time limits defined in ICAO’s Field Service Staff Rules. UNAT held that a submission of an appeal of the administrative decision to AJAB was a mandatory step in the first-instance procedure. UNAT held that it did not have jurisdiction or competence to address the merits of the substantive claims of an appellant which were not considered first by the AJAB as the “neutral first instance process”. UNAT further held that the Appellant had failed to comply with a mandatory step of the first instance...