What kind of irregularities should be documented after a flight?

After a flight, it is essential to document maintenance discrepancies and any unusual events, as these records are critical for ensuring the aircraft's safety and operational readiness. Maintenance discrepancies refer to any faults or issues identified with the aircraft's systems, components, or performance during the flight. These could impact flight safety and must be addressed promptly to maintain airworthiness. Additionally, documenting unusual events, which may include unexpected weather conditions, mechanical malfunctions, or any other anomalies experienced during the flight, helps build a comprehensive understanding of the aircraft's operational history. This information is vital for maintenance crews, safety analysts, and future flight planning.

In contrast, personal assessments of crew performance, while valuable for team development, do not directly pertain to the aircraft's condition or operational integrity and are not typically documented as officially required irregularities. Serious incidents sometimes necessitate reports, but not every discrepancy or unusual event fits this criteria. Lastly, the quality of flight food served is not related to the aircraft's operation and is generally outside the scope of maintenance documentation. Thus, documenting maintenance discrepancies and unusual events is the most relevant and critical action to ensure flight safety and operational performance.