8 May 2009
The White House said President Barack Obama had accepted the resignation of military office director Louis Caldera.
The photo opportunity fly-past prompted the evacuation of a number of offices.
Correspondents say it revived memories of the September 2001 attacks in which hijackers flew planes into the World Trade Center towers.
The half-hour fly-past by a presidential jet and a fighter plane escort on April 27 did not involve Mr Obama.