PlaneTrack / aircraft / N921SK

N921SK - Mooney M20R

N921SK is a Mooney M20R operated by September 21 Llc, Mode-S hex code ACC37B. Track it live, browse its recent flights, or download its full position history.

Representative image of a Mooney M20R. No photo of N921SK yet.

Photo © Flightline Aviation Media - Bruce Leibowitz / Planespotters

RegistrationN921SK

Mode-S hexACC37B

ManufacturerMooney

ModelM20R

OperatorSeptember 21 Llc

Last seen2026-08-20 17:12 UTC

Last callsignN921SK

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

Flight history 13 flights since Mar 2026

Date	Callsign	From	To	Dep	Arr
2026-08-20	N921SK	KPIE	?	11:43 EDT	17:12Z
Route flown, from our receiver network. Green = start, red = end.
2026-08-17	N921SK	KPAM	KSPG	12:07 CDT	13:34 EDT
Route flown, from our receiver network. Green = start, red = end.
2026-08-13	N921SK	?	?	19:02Z	19:42Z
Route flown, from our receiver network. Green = start, red = end.

Earlier flights (10) - back to 2026-03-31

Date	Callsign	From	To	Dep	Arr
2026-07-15	N921SK	KSPG	KPIE	09:47 EDT	12:02 EDT
Route flown, from our receiver network. Green = start, red = end.
2026-07-10	N921SK	KPAM	KSPG	10:13 CDT	12:48 EDT
Route flown, from our receiver network. Green = start, red = end.
2026-07-05	N921SK	KSPG	KPIE	09:35 EDT	10:02 EDT
Route flown, from our receiver network. Green = start, red = end.
2026-07-01	N921SK	KPAM	KSPG	09:17 CDT	11:56 EDT
Route flown, from our receiver network. Green = start, red = end.
2026-06-12	N921SK	KSPG	KPAM	08:17 EDT	08:56 CDT
Route flown, from our receiver network. Green = start, red = end.
2026-05-28	N921SK	KCEW	KSEM	11:50 CDT	12:22 CDT
Route flown, from our receiver network. Green = start, red = end.
2026-05-10	N921SK	KPAM	KSPG	11:01 CDT	13:34 EDT
Route flown, from our receiver network. Green = start, red = end.
2026-05-01	N921SK	KCEW	?	09:56 CDT	15:40Z
Route flown, from our receiver network. Green = start, red = end.
2026-04-16	N921SK	KSPG	KPIE	12:13 EDT	14:14 EDT
Route flown, from our receiver network. Green = start, red = end.
2026-03-31	N921SK	KSPG	KPIE	10:21 EDT	14:02 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.