N422CT and N7874G — very close approach at 10:50 pm PDT
10:47 pm PDT
10:47 pm 10:52 pm 10:50 pm
Lateral
3.28 NM
Vertical
20 ft
HelicopterPrivate and training aircraftOther aircraft flying at the timeFAA runway layout10 nautical mile ring
Nearest approach · 10:50:46 pm
210' at 0.76 NM
N422CT N422CT · BELL 407 2024 · helicopter Registered to KING COUNTY SHERIFFS OFFICE SEATTLE, WA FAA registry · 2026-10-02 Helicopter · BELL 407 · leaving for Seattle 850 ft 114 kt
N7874G N7874G · CESSNA 172L 1970 · airplane Registered to LA PORTA JOHN R DES MOINES, WA FAA registry · 2026-10-02 Private or training · C172 · leaving for Seattle 1,050 ft 85 kt
Altitudes shown are AGL (height above the field): ADS-B altitude, corrected +64' for the air pressure at 10:50:46 pm, minus the field elevation of 32'. Source altitudes come in 100' steps.
What a controller requires
At least 1,000'
vertical separation when aircraft are within 3 NM
Other close approaches at Renton Municipal
When
Aircraft
Lateral
Vertical