Unstable approach — DAL1409
KRDU · 142026-08-09 03:50 UTC· KSLC → KRDU· DELTA AIR LINES INC· A21N
DAL1409 (Delta AIR Lines) was operating from KSLC to KRDU on 2026-08-09. SkyMeter detected a low approach-stability score at Raleigh Durham International Airport (KRDU) on runway 14 at 03:50 UTC. Trace data at the event: 1542 ft AGL, 126 kt GS. Approach stability score: 42/100. 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 5 kt wind, 3 kt crosswind component, 16,093 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)- HAZARDS6/8010 2026-07-23 12:00Z – 2026-08-12 04:00Z SFC–16,500 ft
19NM NE OURAY, CO, Thursday, July 23, 2026 through Wednesday, August 12, 2026 UTC
View FAA NOTAM → - HAZARDS6/8012 2026-07-23 12:00Z – 2026-08-12 04:00Z SFC–16,500 ft
1NM N OURAY, CO, Thursday, July 23, 2026 through Wednesday, August 12, 2026 UTC
View FAA NOTAM → - HAZARDS6/8554 2026-07-26 12:00Z – 2026-08-10 03:00Z SFC–12,000 ft
16NM W MONTICELLO, UT, Sunday, July 26, 2026 through Monday, August 10, 2026 UTC
View FAA NOTAM → - HAZARDS6/9111 2026-07-28 14:00Z – 2026-08-10 03:00Z SFC–14,500 ft
14NM N LOS ALAMOS, NM, Tuesday, July 28, 2026 through Monday, August 10, 2026 UTC
View FAA NOTAM → - HAZARDS6/9884 2026-07-29 12:00Z – 2026-08-12 04:00Z SFC–12,500 ft
19NM NW GRAND JUNCTION, CO, Wednesday, July 29, 2026 through Wednesday, August 12, 2026 UTC
View FAA NOTAM → - HAZARDS6/9885 2026-07-29 12:00Z – 2026-08-12 04:00Z SFC–15,000 ft
8NM S PAGOSA SPRINGS, CO, Wednesday, July 29, 2026 through Wednesday, August 12, 2026 UTC
View FAA NOTAM → - HAZARDS6/9802 2026-07-29 12:00Z – 2026-08-11 04:00Z SFC–16,500 ft
1NM N OURAY, CO, Wednesday, July 29, 2026 through Tuesday, August 11, 2026 UTC
View FAA NOTAM → - HAZARDS6/9841 2026-07-29 14:00Z – 2026-08-11 03:00Z SFC–11,500 ft
11NM S CIMARRON, NM, Wednesday, July 29, 2026 through Tuesday, August 11, 2026 UTC
View FAA NOTAM → - HAZARDS6/0409 2026-07-30 04:00Z – 2026-08-12 04:00Z SFC–15,000 ft
9NM SW PUEBLO, CO, Thursday, July 30, 2026 through Wednesday, August 12, 2026 UTC
View FAA NOTAM → - SECURITY6/0708 2026-08-01 00:01Z – 2027-08-01 23:59Z SFC–400 ft
Goodlettsville, TN, Saturday, August 1, 2026 through Sunday, August 1, 2027 UTC
View FAA NOTAM → - HAZARDS6/0882 2026-08-02 04:00Z – 2026-08-15 04:00Z SFC–15,000 ft
8NM S PAGOSA SPRINGS, CO, Sunday, August 2, 2026 through Saturday, August 15, 2026 UTC
View FAA NOTAM → - HAZARDS6/0881 2026-08-02 13:00Z – 2026-08-16 03:00Z SFC–14,000 ft
26NM SW PRICE, UT, Sunday, August 2, 2026 through Sunday, August 16, 2026 UTC
View FAA NOTAM → - HAZARDS6/1010 2026-08-03 12:00Z – 2026-08-17 04:00Z SFC–11,500 ft
10NM W RICHFIELD, UT, Monday, August 3, 2026 through Monday, August 17, 2026 UTC
View FAA NOTAM → - HAZARDS6/1461 2026-08-04 12:00Z – 2026-08-18 04:00Z SFC–13,000 ft
4NM W RICHFIELD, UT, Tuesday, August 4, 2026 through Tuesday, August 18, 2026 UTC
View FAA NOTAM → - HAZARDS6/1464 2026-08-04 12:00Z – 2026-08-18 04:00Z SFC–13,000 ft
4NM W RICHFIELD, UT, Tuesday, August 4, 2026 through Tuesday, August 18, 2026 UTC
View FAA NOTAM → - HAZARDS6/1462 2026-08-04 13:00Z – 2026-09-01 04:00Z SFC–15,000 ft
20NM SW PUEBLO, CO, Tuesday, August 4, 2026 through Tuesday, September 1, 2026 UTC
View FAA NOTAM → - HAZARDS6/1949 2026-08-05 12:00Z – 2026-08-19 04:00Z SFC–13,000 ft
13NM SW CORTEZ, CO, Wednesday, August 5, 2026 through Wednesday, August 19, 2026 UTC
View FAA NOTAM → - HAZARDS6/2435 2026-08-06 13:00Z – 2026-08-20 04:00Z SFC–13,500 ft
13NM N SANTA FE, NM, Thursday, August 6, 2026 through Thursday, August 20, 2026 UTC
View FAA NOTAM → - HAZARDS6/2478 2026-08-06 14:00Z – 2026-08-20 03:00Z SFC–13,500 ft
17NM E STEAMBOAT SPRINGS, CO, Thursday, August 6, 2026 through Thursday, August 20, 2026 UTC
View FAA NOTAM → - SECURITY6/1710 2026-08-06 21:00Z – 2026-08-10 02:00Z SFC–400 ft
West Chester, OH, Thursday, August 6, 2026 through Sunday, August 9, 2026 Local
View FAA NOTAM → - HAZARDS6/2767 2026-08-07 12:00Z – 2026-08-21 04:00Z SFC–16,500 ft
1NM NE OURAY, CO, Friday, August 7, 2026 through Friday, August 21, 2026 UTC
View FAA NOTAM → - HAZARDS6/2768 2026-08-07 14:00Z – 2026-08-22 04:00Z SFC–12,500 ft
8NM SW RIFLE, CO, Friday, August 7, 2026 through Saturday, August 22, 2026 UTC
View FAA NOTAM → - HAZARDS6/2842 2026-08-07 14:30Z – 2026-08-21 04:00Z SFC–13,500 ft
13NM N SANTA FE, NM, Friday, August 7, 2026 through Friday, August 21, 2026 UTC
View FAA NOTAM → - AIR SHOWS/SPORTS6/0688 2026-08-07 16:15Z – 2026-08-09 21:30Z SFC–16,000 ft
Omaha, NE, Friday, August 7, 2026 through Sunday, August 9, 2026 UTC
View FAA NOTAM → - HAZARDS6/2889 2026-08-07 19:58Z – 2026-08-21 04:00Z SFC–13,000 ft
4NM W RICHFIELD, UT, Friday, August 7, 2026 through Friday, August 21, 2026 UTC
View FAA NOTAM → - SECURITY6/1480 2026-08-07 21:00Z – 2026-08-11 02:00Z SFC–400 ft
West Chester, OH, Friday, August 7, 2026 through Monday, August 10, 2026 Local
View FAA NOTAM → - HAZARDS6/2913 2026-08-08 14:00Z – 2026-08-22 04:00Z SFC–12,500 ft
10NM SW RIFLE, CO, Saturday, August 8, 2026 through Saturday, August 22, 2026 UTC
View FAA NOTAM → - HAZARDS6/2914 2026-08-08 14:00Z – 2026-08-22 04:00Z SFC–6,500 ft
8NM W RIFLE, CO, Saturday, August 8, 2026 through Saturday, August 22, 2026 UTC
View FAA NOTAM → - HAZARDS6/3044 2026-08-08 18:30Z – 2026-08-15 04:00Z SFC–9,000 ft
20NM NE SALT LAKE CITY, UT, Saturday, August 8, 2026 through Saturday, August 15, 2026 UTC
View FAA NOTAM → - HAZARDS6/3075 2026-08-08 19:30Z – 2026-08-22 04:00Z SFC–12,000 ft
28NM NE LAS VEGAS, NM, Saturday, August 8, 2026 through Saturday, August 22, 2026 UTC
View FAA NOTAM → - HAZARDS6/3080 2026-08-08 22:15Z – 2026-08-22 04:00Z SFC–13,000 ft
20NM NE SALT LAKE CITY, UT, Saturday, August 8, 2026 through Saturday, August 22, 2026 UTC
View FAA NOTAM → - SECURITY6/1985 2026-08-08 22:30Z – 2026-08-10 06:00Z SFC–400 ft
Denver, CO, Saturday, August 8, 2026 through Monday, August 10, 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 14
- 1542 ft AGL at event
- 126 kt ground speed
- 0 fpm vertical
- Approach stability 42/100
- 5 kt wind
- 3 kt crosswind component
- 16,093 m visibility
- KRDU 140751Z 24003KT 10SM OVC250 27/23 A3000 RMK SLP153 T02670228
Flight context
- DAL1409
- Delta AIR Lines
- A21N
- KSLC → KRDU
- 2026-08-09 03:50 UTC
- KRDU runway 14
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