1. The aircraft must undergo regular inspections to ensure its airworthiness.
2. The pilot confirmed that the plane was in good condition and met all airworthiness standards.
3. The maintenance crew worked diligently to ensure the airworthiness of the helicopter before its next flight.
4. The airworthiness certificate must be displayed in the cockpit at all times.
5. The airline was fined for operating a plane that did not meet airworthiness requirements.
6. The mechanic performed a thorough check to verify the airworthiness of the aircraft.
7. The aviation authority conducts regular audits to assess the airworthiness of all planes in operation.
8. The pilot was grounded until the necessary repairs were made to bring the aircraft back to airworthiness.
9. The safety of passengers is dependent on the airworthiness of the aircraft.
10. The manufacturer issued a recall for a certain model of aircraft due to concerns about its airworthiness.