Incident
at VANCOUVER INTL BC (CYVR)
(ATS operating irregularity)
Update from ANS&A: A Nav Canada Fact Finding Board will be convened as soon as possible.
A runway change from the 08's to the 26's was in progress. ACA321 was being vectored for spacing behind traffic that had executed a missed approach. ACA321 was vectored into CYA126A on a southerly heading. There was training being conducted in the arrival position. Trainee and controller were counselled and returned to duty.
Update from the TSB: In the period of time leading up to the incident, the active runways at Vancouver were being changed from 08 L/R to 26 L/R. As well, the Outer arrival controller was under training with an OJI. The traffic volume and the complexity were both high. Several aircraft were re-routed to accommodate the change in runways, while three aircraft on final for 08L were permitted to continue. One of these aircraft, a Canada 3000 A-320, executed a missed approach from 08L and flew out to the east climbing to 4,000 feet. At the same time, an Air Canada Boeing 767 (ACA321) was inbound from the east, initially descending to 7,000 feet; the controller subsequently cleared it to 5,500 feet. As the A-320 continued east, the controller identified a potential conflict developing and turned the B-767 left to a southerly heading to increase spacing and provide sequence behind another aircraft arriving from the south. In the process, however, the Arrival controller unintentionally vectored the Boeing into an active CYA126A acrobatic advisory area, which is capped at 5,500 feet asl. The aircraft clipped the north west corner of CYA126A and entered the airspace down to about 5,000 feet; it was in the airspace for about 30 seconds. ATC is required to provide aircraft with 1,000 feet clearance above this area.