Unstable approach — ACA7311

ACA7311 (Air Canada) was inbound to CZBB on 2026-08-31. SkyMeter detected a low approach-stability score at Boundary Bay Airport (CZBB) on runway 21 at 01:39 UTC. Trace data at the event: 1073 ft AGL, 127 kt GS. Approach stability score: 39/100. Scores below 50 occur on under 10% of approaches at this runway and indicate the v2 scorer flagged the approach as highly anomalous (three or more gates exceeded the runway's P90 envelope simultaneously). METAR at the time reported 3 kt wind, 1 kt crosswind component. The approach-stability score rates the final approach against stabilized-approach gates (glideslope, lateral deviation, descent rate, and IAS) at defined altitudes. A low score means one or more of those were outside the normal envelope for how the approach was flown. The score is graded by guidance type, so instrument approaches (ILS or an aligned straight-in) are held to the full gate set, while visual and pattern arrivals are surfaced only when the score is clearly low. The score is advisory and observational, a deviation measure, not an assertion of an accident. Detection algorithm and known limitations: see SkyMeter methodology.

• HAZARDS6/5247 2026-08-16 14:00Z – 2026-08-31 04:00Z SFC–10,500 ft

  19NM N OMAK, WA, Sunday, August 16, 2026 through Monday, August 31, 2026 UTC

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• HAZARDS6/5464 2026-08-17 15:00Z – 2026-08-31 07:00Z SFC–10,000 ft

  38NM N SANDPOINT, ID, Monday, August 17, 2026 through Monday, August 31, 2026 UTC

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• HAZARDS6/5941 2026-08-18 04:00Z – 2026-08-31 04:00Z SFC–13,500 ft

  26NM NW LEAVENWORTH, WA, Tuesday, August 18, 2026 through Monday, August 31, 2026 UTC

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• HAZARDS6/5923 2026-08-18 12:45Z – 2026-08-31 05:00Z SFC–10,000 ft

  38NM N SANDPOINT, ID, Tuesday, August 18, 2026 through Monday, August 31, 2026 UTC

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• HAZARDS6/5931 2026-08-18 14:00Z – 2026-08-31 02:00Z SFC–7,000 ft

  29NM NW KALISPELL, MT, Tuesday, August 18, 2026 through Monday, August 31, 2026 UTC

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• HAZARDS6/5939 2026-08-18 14:00Z – 2026-08-31 05:00Z SFC–10,000 ft

  21NM S PORT ANGELES, WA, Tuesday, August 18, 2026 through Monday, August 31, 2026 UTC

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• HAZARDS6/5940 2026-08-18 15:00Z – 2026-08-31 04:00Z SFC–7,500 ft

  20NM E OKANOGAN, WA, Tuesday, August 18, 2026 through Monday, August 31, 2026 UTC

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• HAZARDS6/6215 2026-08-19 14:00Z – 2026-09-01 04:00Z SFC–11,000 ft

  12NM W PLAINS, MT, Wednesday, August 19, 2026 through Tuesday, September 1, 2026 UTC

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• HAZARDS6/6719 2026-08-20 14:00Z – 2026-09-02 04:00Z SFC–11,000 ft

  12NM W PLAINS, MT, Thursday, August 20, 2026 through Wednesday, September 2, 2026 UTC

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• HAZARDS6/6720 2026-08-20 15:00Z – 2026-09-03 04:00Z SFC–10,000 ft

  8NM SW BONNERS FERRY, ID, Thursday, August 20, 2026 through Thursday, September 3, 2026 UTC

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• HAZARDS6/6721 2026-08-20 15:00Z – 2026-09-02 04:00Z SFC–10,000 ft

  38NM N SANDPOINT, ID, Thursday, August 20, 2026 through Wednesday, September 2, 2026 UTC

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• HAZARDS6/6931 2026-08-21 00:15Z – 2026-08-31 04:00Z SFC–8,000 ft

  12NM N KETTLE FALLS, WA, Friday, August 21, 2026 through Monday, August 31, 2026 UTC

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• HAZARDS6/6959 2026-08-21 04:15Z – 2026-09-04 04:00Z SFC–10,500 ft

  19NM N OMAK, WA, Friday, August 21, 2026 through Friday, September 4, 2026 UTC

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• HAZARDS6/6960 2026-08-21 12:00Z – 2026-09-04 03:00Z SFC–7,000 ft

  29NM NW KALISPELL, MT, Friday, August 21, 2026 through Friday, September 4, 2026 UTC

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• HAZARDS6/6933 2026-08-21 14:00Z – 2026-09-04 03:30Z SFC–11,000 ft

  23NM SE LIBBY, MT, Friday, August 21, 2026 through Friday, September 4, 2026 UTC

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• HAZARDS6/6934 2026-08-21 14:00Z – 2026-09-04 03:30Z SFC–11,000 ft

  23NM SE LIBBY, MT, Friday, August 21, 2026 through Friday, September 4, 2026 UTC

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• HAZARDS6/6962 2026-08-21 15:00Z – 2026-08-31 04:00Z SFC–8,000 ft

  12NM N KETTLE FALLS, WA, Friday, August 21, 2026 through Monday, August 31, 2026 UTC

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• HAZARDS6/7094 2026-08-22 03:30Z – 2026-09-04 04:00Z SFC–10,000 ft

  12NM NW CLE ELUM, WA, Saturday, August 22, 2026 through Friday, September 4, 2026 UTC

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• HAZARDS6/7095 2026-08-22 14:00Z – 2026-09-05 04:00Z SFC–11,000 ft

  10NM W PLAINS, MT, Saturday, August 22, 2026 through Saturday, September 5, 2026 UTC

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• HAZARDS6/7122 2026-08-23 03:50Z – 2026-09-05 04:00Z SFC–13,500 ft

  20NM N LEAVENWORTH, WA, Sunday, August 23, 2026 through Saturday, September 5, 2026 UTC

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• HAZARDS6/7120 2026-08-23 04:00Z – 2026-09-04 04:00Z SFC–10,500 ft

  22NM N OMAK, WA, Sunday, August 23, 2026 through Friday, September 4, 2026 UTC

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• HAZARDS6/7125 2026-08-23 15:00Z – 2026-09-07 04:30Z SFC–10,000 ft

  23NM SE LIBBY, MT, Sunday, August 23, 2026 through Monday, September 7, 2026 UTC

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• HAZARDS6/7126 2026-08-23 15:00Z – 2026-09-07 04:30Z SFC–10,000 ft

  23NM SE LIBBY, MT, Sunday, August 23, 2026 through Monday, September 7, 2026 UTC

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• HAZARDS6/7286 2026-08-23 19:00Z – 2026-09-06 04:00Z SFC–10,000 ft

  12NM NW CLE ELUM, WA, Sunday, August 23, 2026 through Sunday, September 6, 2026 UTC

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• HAZARDS6/7332 2026-08-24 12:00Z – 2026-09-08 03:00Z SFC–7,000 ft

  29NM NW KALISPELL, MT, Monday, August 24, 2026 through Tuesday, September 8, 2026 UTC

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• HAZARDS6/8096 2026-08-26 14:00Z – 2026-09-08 04:00Z SFC–10,000 ft

  37NM SE TACOMA, WA, Wednesday, August 26, 2026 through Tuesday, September 8, 2026 UTC

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• HAZARDS6/8104 2026-08-26 14:00Z – 2026-09-09 05:00Z SFC–12,000 ft

  14NM SW BONNERS FERRY, ID, Wednesday, August 26, 2026 through Wednesday, September 9, 2026 UTC

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• HAZARDS6/8520 2026-08-27 15:00Z – 2026-09-10 04:30Z SFC–9,000 ft

  15NM E KELLOGG, ID, Thursday, August 27, 2026 through Thursday, September 10, 2026 UTC

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• HAZARDS6/8758 2026-08-28 02:30Z – 2026-09-10 04:00Z SFC–10,000 ft

  12NM NW CLE ELUM, WA, Friday, August 28, 2026 through Thursday, September 10, 2026 UTC

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• HAZARDS6/8575 2026-08-28 04:01Z – 2026-09-10 04:00Z SFC–13,500 ft

  28NM W TWISP, WA, Friday, August 28, 2026 through Thursday, September 10, 2026 UTC

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• HAZARDS6/8736 2026-08-28 14:00Z – 2026-09-11 03:00Z SFC–6,500 ft

  29NM NW KALISPELL, MT, Friday, August 28, 2026 through Friday, September 11, 2026 UTC

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• HAZARDS6/8899 2026-08-29 01:00Z – 2026-08-31 04:00Z SFC–12,000 ft

  46NM E MISSOULA, MT, Saturday, August 29, 2026 through Monday, August 31, 2026 UTC

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• HAZARDS6/8900 2026-08-29 14:00Z – 2026-09-12 03:00Z SFC–12,000 ft

  46NM E MISSOULA, MT, Saturday, August 29, 2026 through Saturday, September 12, 2026 UTC

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• HAZARDS6/8901 2026-08-29 15:00Z – 2026-09-12 04:00Z SFC–10,000 ft

  38NM N SANDPOINT, ID, Saturday, August 29, 2026 through Saturday, September 12, 2026 UTC

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• HAZARDS6/9172 2026-08-30 01:00Z – 2026-09-14 03:00Z SFC–14,500 ft

  10NM N LEAVENWORTH, WA, Sunday, August 30, 2026 through Monday, September 14, 2026 UTC

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• HAZARDS6/9200 2026-08-30 13:00Z – 2026-09-14 05:00Z SFC–10,500 ft

  22NM N OMAK, WA, Sunday, August 30, 2026 through Monday, September 14, 2026 UTC

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• UAS PUBLIC GATHERING6/7549 2026-08-30 23:59Z – 2026-09-01 07:30Z SFC–400 ft

  Seattle, WA, Sunday, August 30, 2026 through Tuesday, September 1, 2026 UTC

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SkyMeter cross-referenced this flight against FAA-published TFRs that were active during its window and within its geographic bounding box. Overlap doesn't necessarily mean violation — the aircraft may have been outside the TFR’s precise polygon or flying under air-traffic-control coordination.

Automated analysis. Events shown on this page (such as go-around, unstable approach, or runway events) are heuristic classifications produced by algorithms from publicly broadcast ADS-B data. They are intended to surface flights of interest for further review — they are not findings of fact, and they do not determine pilot fault, regulatory compliance, or the cause of any occurrence. Coverage gaps and sensor noise can affect accuracy. Only the relevant civil aviation authority or accident investigation body can make official determinations. How we detect events · Dispute or correct this data