Apollo (spacecraft) Surface Experiment Packages ALSEP, the modularized equipment transporter (MET) (a hand-pulled equipment cart used on Apollo 14), the Lunar Rover (Apollo 15, 16 and 17), a surface television camera, surface tools, and lunar sample collection boxes. The ascent stage contained the crew cabin, instrument panels, overhead hatch/docking port, forward hatch, optical and electronic guidance systems, reaction control system, radar and communications antennas, ascent rocket engine and propellant to return to lunar orbit and rendezvous with the Apollo Command and Service Modules. The spacecraft–LM adapter (SLA), built by North American Aviation (Rockwell), was a conical aluminum structure which supported the service
Apollo 15 postal covers incident about ; they entered the spacecraft in Scott's pocket. Apollo 15 blasted off for the Moon at 9:34 am on July 26, 1971, with three astronauts and about 641 covers aboard. At some point while the mission was en route to the Moon, the 400 covers were moved into the lunar lander "Falcon"; in his testimony, Scott agreed this violated the rules. He stated he did not recall how the transfer took place, and that he was only certain that the envelopes went to the lunar surface because they were in the bag of items taken out of the "Falcon"