Shortly after departure, a North Star Air Pilatus PC-12 (BF708) on a flight from Thunder Bay, ON (CYQT) to Thunder Bay, ON (CYQT) reported an aircraft issue and advised returning to CYQT. The aircraft landed at 1725Z with no impact to operations.

A WestJet Boeing 737-700 (WJA1416) on a flight from Calgary Intl, AB (CYYC) to Orlando Intl, FL (KMCO) required emergency medical services (EMS) callout to the gate due to a medical emergency.

Runway 17L was unusable due to snow accumulation on taxiway to and from the runway. High speed exits were snow covered as well. Single runway operations until 1726Z.

A L R Helicopters Inc. Robinson R44 II (C-FNPQ) on a flight from Calgary Intl, AB (CYYC) to Calgary Intl, AB (CYYC) was instructed to fly North of the threshold of Runway 17R. Instruction was read back, however, the aircraft crossed Runway 17R at the Runway 29 intersection.

The community aerodrome radio station (CARS) at CYSY, CYRA and CYGT did not provide services as published. Impact to operations unknown.

The community aerodrome radio station (CARS) at CYSY, CYRA and CYGT did not provide services as published. Impact to operations unknown.

Runway Visual Range (RVR) for Runway 34 was giving low readings with good visibility outside. Technical Operations Coordinator (TOC) was advised and will issue NOTAM. No impact on operations.

After landing, an Air Canada Rouge Boeing 767-300 (ROU1629) on a flight from Fort Lauderdale Intl, FL (KFLL) to Toronto/Lester B. Pearson Intl, ON (CYYZ) exited Runway 24R on Taxiway C4 and was instructed to taxi D hold short of E which was read back. An Air Canada Airbus A320 (ACA1401) on a flight from Bahías de Huatulco Intl, Mexico (MMBT) to Toronto/Lester B. Pearson Intl, ON (CYYZ) landed Runway 24R and exited at C2 and was instructed to taxi E and D which was read back. ROU1629 failed to hold short of E and continued taxiing in front of ACA1401. There was no risk of collision.

An Air Canada Airbus A320-211 (C-FFWJ/ACA1185) on a flight from Kelowna, BC (CYLW) to Vancouver Intl, BC (CYVR) conducted a missed approach due to a unstable approach.

A privately registered Champion 7ECA from Kamloops, BC (CYKA) to Kamloops, BC (CYKA) called via phone and reported radio failure. The aircraft landed Runway 09 without incident at 2013Z. No Impact on operations.

An Air Canada Rouge Airbus A319-112 (C-GITP/ROU1727) on a flight from Pointe-à-Pitre, France (TFFR) to Montreal/Pierre Elliott Trudeau Intl, QC (CYUL) was instructed to descend to 4000 and correctly read back the instruction. The aircraft was observed descending through 3300 and was instructed to climb back to 4000. No impact on operations.

A WestJet Boeing 737 (WJA2227) from Montego Bay/Sangster, Jamaica (MKJS) to Calgary, AB (CYYC) requested priority due to a sick crew member. No further assistance required. No impact to operations.

The community aerodrome radio station (CARS) at CYOC closed early from 072300Z to 0200Z and 0823Z to 0200Z.

A Technisonic Industries Ltd. Cessna 501 (C-GTOL) from Kitchener/Waterloo, ON (CYKF) to Kitchener/Waterloo, ON (CYKF) deviated from the clearance they had requested, and could have created a safety hazard.

The flight service station (FSS) noticed a crane at Northmart, approximate height 100ft above ground level (AGL), approximately 0.75NM South Southeast (SSE) from the Iqaluit, NU (CYFB), without the appropriate NOTAM. Airport help desk advised at 1535Z. No impact on operations.

Runway visual range (RVR) for Runway 34 unavailable. Technical Operations Coordinator (TOC) advised at 1526Z. No impact on operations.

An Island Express Air Piper PA-31 (IAX107) was issued a take-off clearance on Runway 08R with insufficient distance behind an Air Canada Rouge Boeing 767-300 (ROU1717) for wake turbulence. No wake turbulence encounter, no operational impact.

A Victoria Flying Club Cessna 172R (C-GKMY) from Victoria, BC (CYYJ) to Victoria, BC (CYYJ) departed Runway 27. Shortly after departure, aircraft reported low engine rotations per minute (RPM). No assistance required. Aircraft landed Runway 14 safely. No impact on operations.

A WestJet Boeing 737-700 (WJA209) from Calgary, AB (CYYC) to Victoria, BC (CYYJ), on required navigation performance (RNP) approach for Runway 27, requested a 360 turn on final due to an undisclosed indication. Terminal approved the turn, aircraft landed safely. No impact on operations.

A WestJet Boeing 737-8CT (C-FBWI/WJA323) from Toronto/Lester B. Pearson, ON (CYYZ) to Saskatoon/Diefenbaker, SK (CYXE) landed and reported a dead bird on the runway.

A First Air Boeing 737-406 (C-FFNE/FAB166) from Montreal/Trudeau, QC (CYUL) to Iqaluit, NU (CYFB) reported that there were 8 approach lights not working for Runway 34. Airport help desk advised at 1855Z. No known impact on operations as of 2000Z.

The community aerodrome radio stations (CARS) of CYRA, CZFN and CYPC did not provide services as published. Impact on operations unknown.

The community aerodrome radio stations (CARS) of CYRA, CZFN and CYPC did not provide services as published. Impact on operations unknown.

The community aerodrome radio stations (CARS) of CYRA, CZFN and CYPC did not provide services as published. Impact on operations unknown.

Advanced Surface Movement Guidance & Control System (A-SMGS) ground surveillance radar failed at 1405Z. As per procedure, segregated operations came in effect. A-SMGS serviceable at 1430Z.

A small dog was observed on Taxiway E. Emergency Response Operations Centre (EROC) advised and airport vehicle removed the dog, no operational impact.

A privately registered Bellanca 17-30A from Thunder Bay, ON (CYQT) to Thunder Bay, ON (CYQT) did not establish contact with the tower prior to entering the zone. First contact with the tower occurred when the aircraft was 3 miles final for Runway 25. The aircraft was 1 mile in trail of an IFR Pilatus PC-12 when communication was established.

A Skylink Express Beech 1900C (SLQ7825) on a flight from Victoria Intl, BC (CYYJ) to Vancouver Intl, BC (CYVR) departed CYYJ Runway 09 and was assigned the VICTORIA 5 standard instrument departure (SID) which climbs out on a 089 heading. The aircraft initiated a left turn towards the YYJ VOR without clearance. No operational impact.

A Jazz de Havilland DHC-8-402 (C-GGMZ/JZA8274) from Nanaimo, BC (CYCD) to Calgary, AB (CYYC) aborted takeoff due to a bird on the runway. No strike reported. Operations delayed 10 minutes for runway check.

Vehicle (ST44) was on closed Runway 08/26, and crossed Runway 16/34 without authorization. No aircraft inbound. No operational impact.

At Port Hardy, BC (CYZT) Vehicle (TK80) requested a voice NOTAM closure of Runway 08/26 due to hydraulic fluid leak. Airport performed runway inspections and assessment of spill. NOTAM Runway 16/34 voice NOTAM closed. Area Control Centre (ACC) advised of both runway closures. Fire department and city sweeper brought in for cleaning purposes.

Pilot initiated missed approach for a Summit Air British Aerospace Avro 146 series RJ100 (C-FXRJ/operating as First Air flight FAB239) on a flight from Yellowknife, NT (CYZF) to Edmonton Intl, AB (CYEG) on area navigation (RNAV) approach to Runway 20. The aircraft reported "lateral navigation (LNAV) issues" and requested an instrument landing approach (ILS) approach to Runway 02. The flight landed Runway 02 at 0821Z. No impact to operations. It was reported that the issue was with internal avionics.

An Air Canada Embraer ERJ 190-100 IGW (C-FNAI/ACA441) on a flight from Ottawa/MacDonald-Cartier Intl, ON (CYOW) to Toronto/Lester B. Pearson Intl, ON (CYYZ) overshot Runway 23 at 1304Z due to an unstable approach, grounding 220kts at the market. The aircraft landed at 1315Z and taxied to the gate without further incident (WOFI). No operational impact.

Power outage at Tuktoyaktuk/James Gruben, NT (CYUB) from 0108Z to 0503Z. No runway lights, radio on limited battery power. No other known impact.

Intermittent emergency locator transmitter (ELT) signal was heard from 1930Z to 1944Z at Edmonton/Villeneuve, AB (CZVL). Found to be local aircraft in hangar, a Summit Helicopters Bell 402 (C-GAVQ).

The community aerodrome radio stations (CARS) at CYAB, CYIK, CZEM and CYNC did not provide services as published on December 5th 2019. NOTAM issued. Unknown impact to operations.

The community aerodrome radio station (CARS) at CYOC was closing from 2300Z to 0200Z on December 5th 2019. NOTAM issued. Canadian Meteorological Aviation Centre (CMAC) West and Edmonton (ZEG) area control centre (ACC) shift manager advised.

The community aerodrome radio stations (CARS) from CYSY, CYRA and CYFR did not provide services as published. Impact on operations unknown.

The community aerodrome radio stations (CARS) from CYSY, CYRA and CYFR did not provide services as published. Impact on operations unknown.

The community aerodrome radio stations (CARS) from CYSY, CYRA and CYFR did not provide services as published. Impact on operations unknown.

A Delta Air Lines McDonnell Douglas MD-88 (DAL2569) on a flight from Atlanta Intl, GA (KATL) to Toronto/Lester B. Pearson Intl, ON (CYYZ) was overshot on Runway 23 on initial contact due to decreasing separation with slower traffic, an American corporately registered Dassault Falcon 900EX (N58CG) on a flight from Elmira/Corning, NY (KELM) to Toronto/Lester B. Pearson Intl, ON (CYYZ). DAL2569 was 70kts faster. DAL2569 landed uneventfully at 1635Z. No operational impact.

A vehicle (STAFF23) was conducting a runway inspection on Runway 27 with instructions to hold short of Runway 33. Vehicle infringed on Runway 33 runway protected area (RPA) prior to stopping and reversing back. A Diamond Flight Centre London Inc. Diamond DA 20-C1 (C-GDFJ) from London, ON (CYXU) to London, ON (CYXU) was 1/4NM final for Runway 33. No other impact on operations.

The community aerodrome radio stations (CARS) at CYAB, CYIK, CZEM and CYNC did not provide services as published on December 5th 2019. NOTAM issued. Unknown impact to operations.

The community aerodrome radio stations (CARS) at CYAB, CYIK, CZEM and CYNC did not provide services as published on December 5th 2019. NOTAM issued. Unknown impact to operations.

The community aerodrome radio stations (CARS) at CYAB, CYIK, CZEM and CYNC did not provide services as published on December 5th, 2019. NOTAM issued. Unknown impact to operations.

Simultaneous independent arrival operations on the 35s. A Jazz de Havilland DHC-8-102 (JZA7990) on a flight from Lethbridge, AB (CYQL) to Calgary Intl, AB (CYYC) received a traffic collision avoidance system (TCAS) resolution advisory (RA) from traffic on the adjacent localizer. The adjacent traffic was in the normal operating zone. JZA7990 was landing on Runway 35R. JZA7990 followed the RA and climbed.

A 677276 N.B. Inc. Cessna 340A (C-GBLJ) on a flight from Toronto/Buttonville, ON (CYKZ) to Fredericton, NB (CYFC) checked in climbing to 3000 feet and the controller advised the pilot to maintain 3000 feet which was read back. The mode C disappeared momentarily, but C-GBLJ was next observed climbing through 3400 feet. When queried by the controller the aircraft descended immediately back down to 3000 feet.

A North Star Air flight (BF711) on a flight from Angling Lake/Wapekeka, ON (CKB6)reported a rough running engine and advised diverting to Pickle Lake, ON (CYPL). The pilot advised no assistance was required. The aircraft landed safely without incident. No impact to operations.

An Evolution Flight School Inc. Diamond DA 20-C1 (C-GIIN) from Ottawa/Gatineau, QC (CYND) to Ottawa/Gatineau, QC (CYND) entered the CYND control zone (CZ) without contacting the flight service station (FSS). No impact on operations.

A B & R Enterprises Ltd. Cessna A185F (C-GCSP) on a transborder VFR flight plan from Sudbury/Azilda, ON (Water) (CNC5) to Sault Ste. Marie, ON (CYAM), entered Information Request to Departure Station (QALQ) stage at 1825Z. Pilot was located by phone at Sault Ste. Marie/Sanderson Field, MI (KANJ) at 1840Z. VFR alerting was not provided across the border or to appropriate destination. No operational impact.