Question

When was the first landing of a scheduled passenger airliner using ILS, in the U.S?

(a) 26 January 1958

(b) 26 January 1938

(c) 26 January 1998

(d) 26 January 2008

The question was posed to me in unit test.

Query is from Aviation Communication Systems topic in chapter Aviation Communication Systems of Aircraft Maintenance

Answer 1

Right answer is (b) 26 January 1938

For explanation I would say: It was on 26 January 1938, that a scheduled passenger airliner landed using the instrument landing system for the first time ever, in the United States of America. The flight was operated by the Pennsylvania Central Airlines.