Narrative:

I was working R45/47 combined. Both aircraft were just west of ZZZ VOR and had been radar handed off to sector 34. I tried to ship the citation to the next frequency but no response. So I decided to ship the aircraft Y he took the frequency change. I have not listened to the replay of the situation yet. I tried to ship the citation one more time. After a slight pause he said they had lost pressurization and needed lower. I said descend and maintain FL380. Aircraft Y was right underneath him and I could not tell which target was which. I called to have sector 34 turn aircraft Y right and told him I would go left. I asked the pilot if he was able to turn left he said affirmative. I told him turn left. I believe I issued a descent to 32;000 feet at some point because I could see the targets coming apart. I realized that sector 34 had went left. I did not like that so I told him to maintain FL380.meanwhile I'm yelling across the room at sector 34 asking if they went left. He said affirmative. Just then I could tell that we had room to get the citation down and I gave him the descent to 29;000 feet. Meanwhile I had been coordinating with sector 44 on the emergency by yelling across the room. At one point when the aircraft was in the high twenties I asked him if he was going to divert. He said maybe and that the pressurization was stabilizing. I gave the pilot a descent to 16;000 feet and was thankful everything worked out. During that sector 34 thought it would be beneficial to descend the aircraft Y and turn him back to the right. Happened all within 30 seconds I would guess. Also at one point I remember telling the citation about the traffic right underneath him.

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Original NASA ASRS Text

Title: B737-800 flight crew in an emergency descent received an RA on traffic below it that being vectored out of the way.

Narrative: I was working R45/47 combined. Both aircraft were just west of ZZZ VOR and had been radar handed off to sector 34. I tried to ship the Citation to the next frequency but no response. So I decided to ship the Aircraft Y he took the frequency change. I have not listened to the replay of the situation yet. I tried to ship the Citation one more time. After a slight pause he said they had lost pressurization and needed lower. I said descend and maintain FL380. Aircraft Y was right underneath him and I could not tell which target was which. I called to have sector 34 turn Aircraft Y right and told him I would go left. I asked the pilot if he was able to turn left he said affirmative. I told him turn left. I believe I issued a descent to 32;000 feet at some point because I could see the targets coming apart. I realized that Sector 34 had went left. I did not like that so I told him to maintain FL380.Meanwhile I'm yelling across the room at Sector 34 asking if they went left. He said affirmative. Just then I could tell that we had room to get the Citation down and I gave him the descent to 29;000 feet. Meanwhile I had been coordinating with Sector 44 on the emergency by yelling across the room. At one point when the aircraft was in the high twenties I asked him if he was going to divert. He said maybe and that the pressurization was stabilizing. I gave the pilot a descent to 16;000 feet and was thankful everything worked out. During that Sector 34 thought it would be beneficial to descend the Aircraft Y and turn him back to the right. Happened all within 30 seconds I would guess. Also at one point I remember telling the Citation about the traffic right underneath him.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.