“Relax, McCallum, relax!” Boomer said in as calm a voice as he could muster. “We’re going to be okay-”
“I can’t breathe, I can’t breathe!” McCallum gasped. Boomer was having a tough time keeping his hands away from his helmet lock-fortunately, the lock was very hard to remove with gloves on. “Help me, Boomer, help me, I’m dying…!”
“No, you’re not, Jeff, you’re okay, just hang on!” Boomer shouted. “Calm down! We’ve practiced this a hundred times. Stay calm and we’ll wait for rescue together.”
“That’s with a full EMU setup, Boomer, not a simple suit without an air supply!” McCallum shouted. “I’ve got no air! I’ve got to get out of this thing! I can’t breathe!”
“They’re on their way, Jeff, just stay calm and relax! Stop struggling! Breathe steady, man, you’re hyperventilating! Stay-”
McCallum’s hands suddenly left his helmet collar lock and pushed right at Boomer’s helmet, sending him spinning away head over heels…and it was only then that, because he was unconscious until just a few moments ago, he realized that in the emergency evacuation of the Black Stallion he had broken the first and most important rule of extravehicular activities: “Make Before Break,” or always attach a tether to something before releasing it…
…he had never secured McCallum to himself.
“Jeff!” he shouted. “Hold on! I’ll be right back to you!” He fumbled around, finally retrieved the Handheld Maneuvering Unit, and used short spurts of nitrogen to stop his tumbling. It took him several long moments to get his bearings. He remembered Earth was “underneath” him, not above him, so he reoriented himself, then used more short bursts to look around for McCallum.
“Jeff, can you see me? Use your strobe or your helmet lights to help me find you!” He heard heavy, rapid breathing sounds, and he prayed McCallum might pass out from hyperventilating. Just then, he saw him, only ten yards away. His hands were no longer trying to work the helmet lock-it appeared as if he was checking his suit’s monitor on his left wrist. “I see you, Jeff!” he radioed, raising the HMU to start his way over to him. “Hang-”
But then he realized what McCallum was doing…because moments later McCallum had stripped off his left protective outer glove and was now working the ring latch on his left suit glove! “Jeff, stop what you’re doing! Stop! Hold on, Jeff, I’ll be right over!”
“I can’t get my helmet off, Boomer!” McCallum shouted. “It won’t come off! I can’t breathe! If I get this damned glove off, it’ll be easier to take the helmet off!”
“Hold on, Jeff! I’m almost there!” Boomer hit the HMU thruster. If he hit him, he might be able to distract him enough. He had to be perfect, but there was no time to aim…
“I’ll get it,” McCallum said in a high, squeaky, strained voice, almost like a child’s. “If I can take these damned gloves off, I can get it.” The helmet ring latch was really designed to be operated by a helper, although the wearer himself could do it with a little patience and practice, but the glove’s ring latch was designed to be operated inside of an air lock by the wearer, and was therefore easier to operate with space-suit gloves on. Before Boomer could reach him, McCallum had opened the locking mechanism and…
…at that moment Boomer rammed into him. In his EEAS it was easier for Boomer to grasp and hold something, and he grasped at anything he could-McCallum’s head, his space-suit material, anything to keep from rebounding back into space. He had flipped right over McCallum, but he held on. They were both twisting around after the impact, but they were together once more. “I got you, Jeff!” he shouted. “Hold on to me, Jeff, and I’ll get us secured. Hold on, man, we’re gonna make it…”
But just as Boomer began pulling his partner around to face him, McCallum twisted the ring latch another half inch, and with a puff of moisture-laden oxygen, the air began leaking out of his suit.
“No!” Boomer cried out. He fumbled for the left wrist. McCallum made a loud animal-like bark as oxygen forced itself out of his lungs. Boomer reached the ring latch, but he couldn’t force McCallum’s hand away in time before all of the air in the space suit evacuated. Boomer watched as McCallum started gasping for air for a few seconds, his eyes bulging in terror, and then he closed his eyes and mercifully fell asleep from hypoxia.
Boomer managed to snap the ring latch closed. He then retrieved his seat-back survival kit, found the small bottle of emergency oxygen, removed the mask, plugged it into the port on McCallum’s suit, and pulled the activation ring. It was empty almost instantly. Boomer opened McCallum’s survival kit, found the oxygen bottle, and drained it into the suit as fast as he could. No reaction.