unairworthy

Thân thiện

The pilot declared the old aircraft unairworthy.

Definition

1. Adjective:
   • Not fit to fly: Describes an aircraft, or occasionally a component or system within an aircraft, that does not meet the required safety, maintenance, or operational standards to be legally or safely operated in flight.

Usage

• The adjective unairworthy is used to formally and technically describe the condition of an aircraft or part. It is the direct opposite of "airworthy."
• It is primarily used in aviation contexts by regulators (like the FAA), maintenance engineers, inspectors, and pilots.
• It often appears in official documents, maintenance logs, grounding orders, and safety reports.

Examples

• Adjective:
  • The inspector found a crack in the wing spar and declared the plane unairworthy.
  • An unairworthy aircraft must not be flown until all necessary repairs are certified.
  • The maintenance log listed several unairworthy components that needed immediate replacement.

Advanced Usage

• Declared/Deemed Unairworthy: A formal finding by a qualified authority.
  • Following the severe turbulence, the aircraft was temporarily deemed unairworthy for passenger flights.
• Unairworthy Condition: A state of being unfit for flight.
  • The corroded fuselage represented an unairworthy condition.

Variants and Related Words

• Airworthy (adj): Fit to fly; meeting all safety standards. (Direct antonym)
• Airworthiness (n): The quality or state of being fit to fly.
• Unairworthiness (n): The state of being unfit to fly.
  • The unairworthiness of the fleet led to a complete grounding.

Synonyms

• Grounded: (Specifically for an aircraft) prohibited from flying.
• Unfit for flight: A more descriptive phrase with the same meaning.
• Unserviceable: (In aviation maintenance) not in a condition for safe use.

Antonyms

• Airworthy
• Flightworthy

Học thuật

Adjective

1. not fit to fly