Unstable approach — N857SS
KPTK · 182026-08-27 22:36 UTC· KBZN → KPTK· SIMON AVIATION LLC· F2TH
N857SS (Simon Aviation) was operating from KBZN to KPTK on 2026-08-27. SkyMeter detected a low approach-stability score at Oakland County International Airport (KPTK) on runway 18 at 22:36 UTC. Trace data at the event: 2089 ft AGL, 127 kt GS. Approach stability score: 37/100. 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 10 kt wind, 9 kt crosswind component, 14,484 m visibility. 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.
Active FAA TFR during this flight
Source: FAA TFR archive (hourly snapshot)- HAZARDS6/4893 2026-08-13 13:00Z – 2026-08-28 03:00Z SFC–9,000 ft
43NM E HOT SPRINGS, SD, Thursday, August 13, 2026 through Friday, August 28, 2026 UTC
View FAA NOTAM → - HAZARDS6/6723 2026-08-20 14:00Z – 2026-09-03 04:00Z SFC–9,000 ft
16NM E BIG TIMBER, MT, Thursday, August 20, 2026 through Thursday, September 3, 2026 UTC
View FAA NOTAM → - HAZARDS6/8066 2026-08-26 00:30Z – 2026-08-28 04:00Z SFC–11,000 ft
32NM SE BILLINGS, MT, Wednesday, August 26, 2026 through Friday, August 28, 2026 UTC
View FAA NOTAM → - HAZARDS6/8109 2026-08-26 14:00Z – 2026-09-09 03:30Z SFC–11,000 ft
32NM SE BILLINGS, MT, Wednesday, August 26, 2026 through Wednesday, September 9, 2026 UTC
View FAA NOTAM → - VIP6/7355 2026-08-26 16:45Z – 2026-08-28 18:00Z SFC–4,999 ft
JACKSON HOLE, WY, Wednesday, August 26, 2026 through Friday, August 28, 2026 Local
View FAA NOTAM → - HAZARDS6/8310 2026-08-26 16:45Z – 2026-09-02 03:00Z SFC–14,000 ft
23NM N PINEDALE, WY, Wednesday, August 26, 2026 through Wednesday, September 2, 2026 UTC
View FAA NOTAM → - SECURITY6/6998 2026-08-27 11:00Z – 2026-09-08 03:00Z SFC–400 ft
St. Paul, MN, Thursday, August 27, 2026 through Monday, September 7, 2026 Local
View FAA NOTAM →
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.
Pilot review data
- Runway 18
- 2089 ft AGL at event
- 127 kt ground speed
- 0 fpm vertical
- Approach stability 37/100
- 10 kt wind
- 9 kt crosswind component
- 14,484 m visibility
- KPTK 160953Z COR 00000KT 9SM BKN025 BKN110 OVC140 20/19 A3025 RMK SLP236 T02000189
Flight context
- N857SS
- Simon Aviation
- F2TH
- KBZN → KPTK
- 2026-08-27 22:36 UTC
- KPTK runway 18
All events on this flight
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