A bill to exempt from duty certain aircraft components and materials installed in aircraft previously exported from the United States where the aircraft is returned without having been advanced in value or improved in condition while abroad.

[AI summary unavailable — showing source text] Exempts from customs duty, aircraft components and materials contained in an aircraft which was: (1) previously exported from the United States; (2) composed at the time of exportation of components and materials made and installed in the United States; (3) returned to the United States without having been improved; and (4) entered for use in the United States before 1970.…