Squawk 7700 transmission — N

N (Ricalichan) was operating from KSJC to KTIW on 2026-08-24. SkyMeter recorded a 7700 transponder transmission at 21:49 UTC. Code 7700 indicates a general emergency declaration (e.g. engine, medical, smoke). A sustained transmission is normally accompanied by ATC priority handling. Trace data at the event: 35237 ft AGL, 472 kt GS. Approach stability score: 77/100. Scores in this band are observed on roughly 25% of approaches at this runway: one or more gates outside the per-runway tightest envelope, but still inside the typical operating range. METAR at the time reported 8 kt wind, 1 kt crosswind component. Detection algorithm and known limitations: see SkyMeter methodology.

• SECURITY6/6491 2026-07-20 07:01Z – 2026-09-16 06:59Z SFC–1,499 ft

  Concord, CA, Monday, July 20, 2026 through Tuesday, September 15, 2026 Local

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• HAZARDS6/3165 2026-08-10 05:30Z – 2026-08-25 04:00Z SFC–11,000 ft

  15NM N KLAMATH FALLS, OR, Monday, August 10, 2026 through Tuesday, August 25, 2026 UTC

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• HAZARDS6/3168 2026-08-10 06:45Z – 2026-08-25 04:00Z SFC–10,500 ft

  40NM SE PORTLAND, OR, Monday, August 10, 2026 through Tuesday, August 25, 2026 UTC

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• HAZARDS6/4084 2026-08-12 00:45Z – 2026-08-27 04:00Z SFC–10,500 ft

  40NM SE PORTLAND, OR, Wednesday, August 12, 2026 through Thursday, August 27, 2026 UTC

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• HAZARDS6/4704 2026-08-13 00:30Z – 2026-08-27 04:00Z SFC–10,500 ft

  40NM SE PORTLAND, OR, Thursday, August 13, 2026 through Thursday, August 27, 2026 UTC

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• HAZARDS6/5053 2026-08-14 02:15Z – 2026-08-29 04:00Z SFC–11,000 ft

  15NM N KLAMATH FALLS, OR, Friday, August 14, 2026 through Saturday, August 29, 2026 UTC

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• HAZARDS6/5466 2026-08-17 05:00Z – 2026-08-31 05:00Z SFC–10,500 ft

  40NM SE PORTLAND, OR, Monday, August 17, 2026 through Monday, August 31, 2026 UTC

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• HAZARDS6/5801 2026-08-17 19:40Z – 2026-08-31 04:00Z SFC–10,500 ft

  40NM SE PORTLAND, OR, Monday, August 17, 2026 through Monday, August 31, 2026 UTC

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• HAZARDS6/5892 2026-08-18 04:00Z – 2026-08-31 13:00Z SFC–10,500 ft

  41NM SE PORTLAND, OR, Tuesday, August 18, 2026 through Monday, August 31, 2026 UTC

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• HAZARDS6/6958 2026-08-21 04:00Z – 2026-09-03 04:00Z SFC–11,000 ft

  15NM N KLAMATH FALLS, OR, Friday, August 21, 2026 through Thursday, September 3, 2026 UTC

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• HAZARDS6/6955 2026-08-21 14:00Z – 2026-08-28 04:00Z SFC–10,000 ft

  37NM SE TACOMA, WA, Friday, August 21, 2026 through Friday, August 28, 2026 UTC

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• HAZARDS6/7022 2026-08-21 17:45Z – 2026-09-03 04:00Z SFC–9,000 ft

  24NM NE VANCOUVER, WA, Friday, August 21, 2026 through Thursday, September 3, 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