An installation of an item manufactured in accordance with the TSO system requires no further approval for installation in a particular aircraft.

• A. Sometimes
• B. Only for experimental aircraft
• C. True
• D. False

Answer: (C)

TSO-approved items carry FAA approval for use in aircraft, so once a part is manufactured to a Technical Standard Order, it can be installed in a type-certified aircraft without a separate airworthiness approval, as long as the installation follows the TSO’s instructions and the aircraft’s approved design. This means there’s no need for additional certification specifically for that installation, provided you stay within the TSO's limitations and the aircraft’s configuration. If the installation would require changes beyond those limits—such as modifying systems outside the TSO's scope or using the part in a way not specified—then extra approvals (like an STC or field approval) would be necessary. So the statement is true.