N509MM

Flight

Status

Completed

Arrival confirmed via

ADS-B (ground reading)

Departure

Boeing Field King County International Airport (BFI) — Seattle, United States

Departed

2026-10-01 01:52 UTC

Arrival

Boeing Field King County International Airport (BFI) — Seattle, United States

Distance flown

70 km

Approach distance

70 km

Registration

Type

Robinson Helicopter Company Robinson R44

Max altitude

1,175 ft

Max ground speed

126 kt

Tracked

25m · 70 km

Altitude (ft, max 1,175)

Ground speed (kt, max 126)

Altitude (ft, max 1,175)

Ground speed (kt, max 126)

From the ADS-B positions we received; time since the first fix. A dashed stretch is a gap in reception, bridged by a straight line.

No airline on record.

Latest flights

Departed	Flight	Route	Reg	Aircraft	Status	Distance
2026-10-01 18:45 UTC	N509MM	BFI → ? Seattle → ?	N509MM	Robinson Helicopter Company Robinson R44	Incomplete (signal lost)	157 km
2026-10-01 01:52 UTC	N509MM	BFI → BFI Seattle → Seattle	N509MM	Robinson Helicopter Company Robinson R44	Completed	70 km
2026-09-28 21:30 UTC	N509MM	SHN → BFI Shelton → Seattle	N509MM	Robinson Helicopter Company Robinson R44	Completed	135 km
2026-09-28 20:33 UTC	N509MM	SHN → SHN Shelton → Shelton	N509MM	Robinson Helicopter Company Robinson R44	Completed (landing presumed)	15 km
2026-09-28 18:28 UTC	N509MM	BFI → HQM Seattle → Hoquiam	N509MM	Robinson Helicopter Company Robinson R44	Completed (landing presumed)	191 km
2026-09-26 21:26 UTC	N509MM	BFI → BFI Seattle → Seattle	N509MM	Robinson Helicopter Company Robinson R44	Completed	18 km
2026-09-24 23:18 UTC	N509MM	BFI → BFI Seattle → Seattle	N509MM	Robinson Helicopter Company Robinson R44	Completed	28 km
2026-09-07 18:40 UTC	N509MM	YKM → BFI Yakima → Seattle	N509MM	Robinson Helicopter Company Robinson R44	Completed	145 km