If the RNLTD has expired and an Airman has not arrived, within how many hours should the issue be resolved?

The correct answer is 48 hours because when the Required Not Later Than Date (RNLTD) has expired, it indicates that the Airman was expected to report by that date. Resolving the issue within 48 hours is crucial to maintaining operational readiness and ensuring that personnel assignments are managed effectively. This timeframe allows for prompt action to either facilitate the Airman's arrival or address any outstanding issues that may prevent that. Delays beyond this timeframe could hinder mission planning and resource allocation. Consequently, a 48-hour resolution period ensures the integrity of personnel management processes while also addressing any urgent needs that arise from missed reporting dates.