The HS-4 Sikorsky SH-3 Sea King 'old 66' landing on the flight deck of USS HORNET (CVS-12) before it was moved down to the hanger deck.
"Donned in biological isolation garments, the Apollo 11 crew members, (L-R) Edwin Aldrin, Neil Armstrong (waving), and Michael Collins exit Old 66, the recovery pick up helicopter, to board the USS HORNET (CVS-12) after splashdown."
"The Apollo 11 crewmen, wearing biological isolation garments, arrive aboard HORNET during recovery operations in the central Pacific. They are walking toward the Mobile Quarantine Facility (MQF), in which they will be confined until they arrive at the Manned Spacecraft Center's (MSC), Lunar Receiving Laboratory (LRL). Apollo 11, with astronauts Neil A. Armstrong, commander; Michael Collins, command module pilot; and Edwin E. Aldrin Jr., lunar module pilot, onboard, splashed down at 11:49 a.m. (CDT), July 24, 1969, about 812 nautical miles southwest of Hawaii and only 12 nautical miles from HORNET to conclude their historic lunar landing mission."
Date: July 24, 1969
source, source
U.S. Naval History and Heritage Command: Apollo 11 Recovery Photo 11
NASA ID: 6900595, S69-41573, link, 6901201, 6901225, 6900607