N503GS Owner: Alternate Solutions Health Network

Tracked flights

Lifetime CO₂

80.1t

Flight hours

20h

Specifications

Tail

N503GS

ICAO

A645BC

Size class

Heavy

Fuel burn

410 gal/hr

CO₂ / hour

3,939 kg

Car miles equiv. / hr

9,749

Owner

Alternate Solutions Health Network

N503GS — flight history (5 flights)

CompletedEGSS — London Stansted Airport→LFPB — Paris-Le Bourget International AirportSep 2, 2026, 10:04 AM · 50m
CompletedKDAY — James M. Cox Dayton International Airport→EGSS — London Stansted AirportAug 30, 2026, 12:54 AM · 6h 59m
CompletedKSRQ — Sarasota Bradenton International Airport→KDAY — James M. Cox Dayton International AirportAug 14, 2026, 11:12 PM · 1h 58m
CompletedKDAY — James M. Cox Dayton International Airport→KSRQ — Sarasota Bradenton International AirportAug 11, 2026, 08:25 PM · 2h 3m
CompletedLSYQ — Croix de Coeur Altiport

About N503GS

Who owns N503GS?

N503GS is a Gulfstream G550 owned by Alternate Solutions Health Network.

What type of aircraft is N503GS?

N503GS is a Gulfstream G550, a heavy jet with a typical fuel burn of 410 gallons per hour.

What is N503GS's ICAO hex code?

N503GS's ICAO hex code is A645BC. It is the 24-bit transponder address the aircraft broadcasts over ADS-B, and it is how Celebplanes identifies N503GS in the live feed.

Where is N503GS now?

N503GS is not airborne right now. Its most recent tracked flight ended at LFPB — Paris-Le Bourget International Airport on Sep 2, 2026, 10:54 AM.

How much CO₂ does N503GS emit per flight hour?

N503GS emits roughly 3,939 kg of CO₂ per flight hour, equivalent to about 9,749 miles of average passenger-car driving.

Attributions derived from FAA registry + ADSB Exchange + SEC filings; may be incomplete or outdated. Methodology · Report an error. Observational use only.