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Aircraft
HB-JOS
Common
- Mode S hex
- 4B1942
- Type
- Airbus A320A320
- Manufacturer
- Airbus
- Serial number
- 4391
- Year built
- 201016 years old
- Operator
- Chair Airlines (CSW)
- Country of registration
Switzerland
- First contact
- 13 Sept 2017, 13:06
- Last contact
- 12 Aug 2026, 11:37
- Logged visits
- 1,410
The station's story
- Cumulative contact time
- 176 h
- Distinct days
- 761
- Highest captured altitude
- 39,025 ft
- Discovery rank
- #25,494 of 57,160
- Longest contact
- 0 h 40 min
- Contacts on this Mode S address
- 1,453 contacts on the address, 1,410 under this registration: the address has carried several identities over time.
Same airframe, also seen as
- HZ-AS35from 7 Oct 2016 to 7 Oct 2016 · 2 contacts
These registrations share the same serial number and type according to the reference data. Serial numbers can collide, though: it is a deduction, not a certainty.
Observed callsigns
GSW (541 contacts, 2023-2025) · CSW (470 contacts, 2025-2026) · ENT (2 contacts, 2025)
Operator as per the registry of 12 Aug 2026; observed callsigns are the freshest measurement.
Visits
| Callsign | Route | First contact | Last contact | Altitude at end of contact | Positions |
|---|---|---|---|---|---|
| CSW615 | BKPR > LFSB | 15 Dec 2025, 22:2515 Dec 2025 | 15 Dec 2025, 22:30 | 10,650 ft | 27 |
| CSW1PM | LEPA > LSZH | 14 Dec 2025, 15:0314 Dec 2025 | 14 Dec 2025, 15:26 | 16,925 ft | 360 |
| CSW1EP | LSZH > LEPA | 14 Dec 2025, 11:4914 Dec 2025 | 14 Dec 2025, 12:08 | 37,000 ft | 1,309 |
| CSW612 | LFSB > BKPR | 13 Dec 2025, 11:5913 Dec 2025 | 13 Dec 2025, 12:05 | 18,250 ft | 32 |
| CSW615 | BKPR > LFSB | 12 Dec 2025, 22:1612 Dec 2025 | 12 Dec 2025, 22:19 | 18,425 ft | 24 |
| CSW612 | LFSB > BKPR | 11 Dec 2025, 12:1011 Dec 2025 | 11 Dec 2025, 12:16 | 18,500 ft | 33 |
| CSW615 | BKPR > LFSB | 10 Dec 2025, 21:5210 Dec 2025 | 10 Dec 2025, 21:58 | 10,950 ft | 26 |
| CSW612 | LFSB > BKPR | 9 Dec 2025, 11:509 Dec 2025 | 9 Dec 2025, 11:56 | 18,325 ft | 10 |
| CSW615 | BKPR > LFSB | 8 Dec 2025, 22:168 Dec 2025 | 8 Dec 2025, 22:22 | 10,700 ft | 30 |
| CSW612 | LFSB > BKPR | 7 Dec 2025, 12:067 Dec 2025 | 7 Dec 2025, 12:10 | 16,975 ft | 108 |
| CSW615 | BKPR > LFSB | 6 Dec 2025, 22:096 Dec 2025 | 6 Dec 2025, 22:12 | 12,950 ft | 52 |
| CSW612 | LFSB > BKPR | 5 Dec 2025, 12:115 Dec 2025 | 5 Dec 2025, 12:13 | 18,850 ft | 23 |
| CSW615 | BKPR > LFSB | 4 Dec 2025, 22:204 Dec 2025 | 4 Dec 2025, 22:22 | 12,900 ft | 45 |
| CSW612 | LFSB > BKPR | 3 Dec 2025, 11:593 Dec 2025 | 3 Dec 2025, 12:02 | 19,700 ft | 45 |
| CSW615 | BKPR > LFSB | 2 Dec 2025, 22:052 Dec 2025 | 2 Dec 2025, 22:10 | 11,725 ft | 20 |
| CSW612 | LFSB > BKPR | 1 Dec 2025, 12:311 Dec 2025 | 1 Dec 2025, 12:33 | 19,175 ft | 22 |
| CSW615 | BKPR > LFSB | 30 Nov 2025, 22:1130 Nov 2025 | 30 Nov 2025, 22:13 | 16,900 ft | 4 |
| CSW1PM | LEPA > LSZH | 30 Nov 2025, 15:1830 Nov 2025 | 30 Nov 2025, 15:31 | 19,375 ft | 354 |
| CSW1EP | LSZH > LEPA | 30 Nov 2025, 12:0230 Nov 2025 | 30 Nov 2025, 12:31 | 39,025 ft | 1,527 |
| CSW612 | LFSB > BKPR | 29 Nov 2025, 11:5729 Nov 2025 | 29 Nov 2025, 12:02 | 16,475 ft | 82 |
| CSW615 | BKPR > LFSB | 28 Nov 2025, 23:1628 Nov 2025 | 28 Nov 2025, 23:18 | 16,700 ft | 43 |
| CSW1EP | LSZH > LEPA | 28 Nov 2025, 13:4028 Nov 2025 | 28 Nov 2025, 13:58 | 35,000 ft | 916 |
| not transmitted | route not resolved | 27 Nov 2025, 12:0427 Nov 2025 | 27 Nov 2025, 12:06 | 19,775 ft | 1 |
| CSW615 | BKPR > LFSB | 26 Nov 2025, 21:5726 Nov 2025 | 26 Nov 2025, 21:59 | 17,200 ft | 21 |
| CSW612 | LFSB > BKPR | 25 Nov 2025, 12:0025 Nov 2025 | 25 Nov 2025, 12:04 | 19,950 ft | 96 |
