1931 The Commerce Department's Aeronautics Branch, the FAA's predecessor, suspends the certificate of the Fokker F-10A after a crash that kills Notre Dame football coach Knute Rockne. Investigators say moisture caused the aircraft's wooden wing to separate.

1946 The CAA grounds the Lockheed L-049 Constellation from July 11 to Aug. 24 so modifications to it's electrical system and powerplants could be made.

1947 The three airlines using DC-6 aircraft voluntarily withdrew them from service after the CAB determined that two inflight fires had been caused by fuel leaking into the cabin heater system through an air intake scoop. After the problem was remedied, the DC-6 returned to service in March 1948.

1948 The Martin 202 is voluntarily grounded after discovery of a structural problem with the wings. After extensive modification they returned to service on Sept. 1, 1950, with the designation 2-0-2A .

1979 FAA grounded the DC-10 on May 25 after one crashed shortly after takeoff in Chicago, until U.S. airlines completed certain visual inspections. The next day, after learning the checks had turned up potentially dangerous deficiencies in pylon mountings, FAA grounded the entire DC-10 fleet on May 26, pending more comprehensive inspections. The order included U.S.-certificated Airbus A300s because of the similarity of their pylon to the DC-10's. On June 5, FAA suspended the DC-10's type certificate indefinitely. Thirty-seven days later, FAA lifted the suspension.

1984 FAA grounds approximately 180 Sikorsky S-76A helicopters on Dec. 11, pending installation of a replacement part being developed by the engine manufacturer after an Oct. 31 accident in the South China Sea.

1985 FAA grounds all 10 of Arrow Air's DC-8s, pending replacement of unapproved spare parts after one crashed on takeoff from Gander, Newfounland. All 256 people aboard were killed, including 248 U.S. soldiers.

2013 The FAA grounds the Boeing 787 fleet operated by U.S. carriers after lithium-ion battery incidents on two 787s, operated by All Nippon Airways and Japan Airlines.

Source: Aviation Week archives (sourced to FAA)