Full FAA Chronology at this link.
19610124: The Convair 990 (model 30) first flew. On December 15, FAA certificated the four-engine jet airliner of medium-to-long range with a maximum capacity of 121 passengers. The plane, built by General Dynamics Corporation, entered scheduled service on March 9, 1963, with Swissair.
19740124: A U.S. appeals court issued a decision upholding the Age-60 rule (see March 15, 1960). The court held that FAA rules that apply generally, even though they affect individuals, do not require an adjudicatory proceeding before being adopted. The case grew out of a petition filed with FAA on June 5, 1970, by the Air Line Pilots Association.