Category: TDiFH

Full FAA Chronology at this link.

19740102: Public Law 93-239, enacted on this date, extended the deadline for installation of emergency locator transmitters (ELTs) in certain types of aircraft from December 30, 1973, to June 30, 1974. The law also added certain new categories of operation, such as flights incident to design and testing, to the list of exceptions to the ELT requirement. (See December 29, 1970, and March 16, 1978.)
19970102: The Federal Aviation Administration (FAA) issued an airworthiness directive requiring operators to adopt procedures enabling the flight crew to reestablish control of a Boeing 737 experiencing an uncommanded yaw or roll – the phenomenon believed to have brought down USAir Flight 427 at Pittsburgh, Pennsylvania, in 1994.

Full FAA Chronology at this link.

19320101: The first Air Commerce Regulations governing gliders and gliding became effective.
19350101: The Bureau of Air Commerce announced a new policy for the classification of airports, under which only those airports serving scheduled interstate airlines would be examined for compliance with its requirements.
19380101: An Airport Traffic Control Section was created in the Airways Operation Division of the Bureau of Air Commerce. The new section was to standardize airport control tower equipment, operation techniques, and personnel. Forty airport control tower operators had been certificated by June 30, 1938.