Narrative:

I was working at salt lake center sector 19 on a mid shift. I had 2 strips, both at FL370. Air carrier X, sea-msp; cga Y, yyc-iah. Air carrier X was handed off manually from seattle center because they were on darc. A data block was started on air carrier X and he proceeded across the sector normally. We don't have automated handoff capability with edmonton center. The procedure is to make a manual handoff. Edmonton center called me on the landline and said 'did that cga Y come over yet?' cga Y had never been handed off and was 70 mi inside my airspace converging with air carrier X on about a 60 degree angle approximately 25 mi apart which was about 2 min from convergence. Air carrier X was given instruction to descend to FL350 for traffic followed by instructions to expedite descent followed by a 50 degree right turn. The pilot read back 15 degree but I didn't correct him because the altitude was working. Vertical sep was achieved at approximately 8 mi. Had the controller called me 2 min later and the WX not been clear, the aircraft would have converged at FL370. The canadian controller is clearly a major factor due to failure to handoff cga Y however, I think increased vigilance on my part by recognizing that cga Y should be in my airspace based on time estimates could have prevented this .

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Original NASA ASRS Text

Title: ACFT ENTERED THE ADJACENT FAC AIRSPACE WITHOUT A MANUAL HANDOFF AT AN ALT OCCUPIED BY ANOTHER ACFT.

Narrative: I WAS WORKING AT SALT LAKE CTR SECTOR 19 ON A MID SHIFT. I HAD 2 STRIPS, BOTH AT FL370. ACR X, SEA-MSP; CGA Y, YYC-IAH. ACR X WAS HANDED OFF MANUALLY FROM SEATTLE CTR BECAUSE THEY WERE ON DARC. A DATA BLOCK WAS STARTED ON ACR X AND HE PROCEEDED ACROSS THE SECTOR NORMALLY. WE DON'T HAVE AUTOMATED HDOF CAPABILITY WITH EDMONTON CTR. THE PROC IS TO MAKE A MANUAL HDOF. EDMONTON CTR CALLED ME ON THE LANDLINE AND SAID 'DID THAT CGA Y COME OVER YET?' CGA Y HAD NEVER BEEN HANDED OFF AND WAS 70 MI INSIDE MY AIRSPACE CONVERGING WITH ACR X ON ABOUT A 60 DEG ANGLE APPROX 25 MI APART WHICH WAS ABOUT 2 MIN FROM CONVERGENCE. ACR X WAS GIVEN INSTRUCTION TO DSND TO FL350 FOR TFC FOLLOWED BY INSTRUCTIONS TO EXPEDITE DSNT FOLLOWED BY A 50 DEG R TURN. THE PLT READ BACK 15 DEG BUT I DIDN'T CORRECT HIM BECAUSE THE ALT WAS WORKING. VERT SEP WAS ACHIEVED AT APPROX 8 MI. HAD THE CTLR CALLED ME 2 MIN LATER AND THE WX NOT BEEN CLR, THE ACFT WOULD HAVE CONVERGED AT FL370. THE CANADIAN CTLR IS CLRLY A MAJOR FACTOR DUE TO FAILURE TO HDOF CGA Y HOWEVER, I THINK INCREASED VIGILANCE ON MY PART BY RECOGNIZING THAT CGA Y SHOULD BE IN MY AIRSPACE BASED ON TIME ESTIMATES COULD HAVE PREVENTED THIS .

Data retrieved from NASA's ASRS site as of July 2007 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.