PlaneTrack / aircraft / N4121D

N4121D - Helio H-391B

N4121D is a Helio H-391B operated by Sessions John L, Mode-S hex code A4DE0D. Track it live, browse its recent flights, or download its full position history.

Representative image of a Helio H-391B. No photo of N4121D yet.

Photo © Stephen J Stein / Planespotters

RegistrationN4121D

Mode-S hexA4DE0D

ManufacturerHelio

ModelH-391B

OperatorSessions John L

Last seen2026-07-13 16:22 UTC

Last callsignN4121D

Open the live map Buy full history (CSV) API access

Flight history 3 flights since Apr 2026

No flights in the last 30 days.

Earlier flights (3) - back to 2026-04-27

Date	Callsign	From	To	Dep	Arr
2026-06-22 (partial)	N4121D	KORL	?	08:45 EDT
Route flown, from our receiver network. Green = start, red = end.
2026-04-30	N4121D	KORL	KGNV	07:19 EDT	08:16 EDT
Route flown, from our receiver network. Green = start, red = end.
2026-04-27	N4121D	KBTR	KTLH	09:59 CDT	15:22 EDT
Route flown, from our receiver network. Green = start, red = end.

Times are local to each airport. Hover for UTC. Tap Map to see the route flown. Partial records have a confirmed departure but no reliable arrival fix.

Data access

Live position and 365-day history for this aircraft are available through the PlaneTrack API (commercial use from $29/month) and as one-off CSV extracts from our own receiver network archive.