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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
- 11 Aug 2026, 16:04
- Logged visits
- 1,408
The station's story
- Cumulative contact time
- 176 h
- Distinct days
- 760
- Highest captured altitude
- 39,025 ft
- Discovery rank
- #25,489 of 57,065
- Longest contact
- 0 h 40 min
- Contacts on this Mode S address
- 1,451 contacts on the address, 1,408 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 (469 contacts, 2025-2026) · ENT (2 contacts, 2025)
Operator as per the registry of 29 Jul 2026; observed callsigns are the freshest measurement.
Visits
| Callsign | Route | First contact | Last contact | Altitude at end of contact | Positions |
|---|---|---|---|---|---|
| not transmitted | route not resolved | 16 Apr 2026, 15:1916 Apr 2026 | 16 Apr 2026, 15:20 | 32,750 ft | 1 |
| not transmitted | route not resolved | 16 Apr 2026, 11:5516 Apr 2026 | 16 Apr 2026, 12:09 | 37,000 ft | 1 |
| not transmitted | route not resolved | 13 Apr 2026, 16:4213 Apr 2026 | 13 Apr 2026, 16:42 | 32,400 ft | no position received |
| CSW1EP | LSZH > LEPA | 13 Apr 2026, 12:0313 Apr 2026 | 13 Apr 2026, 12:24 | 35,025 ft | 1,266 |
| CSW1PM | LEPA > LSZH | 11 Apr 2026, 15:3911 Apr 2026 | 11 Apr 2026, 15:53 | 20,450 ft | 513 |
| CSW1EP | LSZH > LEPA | 11 Apr 2026, 12:2411 Apr 2026 | 11 Apr 2026, 12:44 | 32,975 ft | 1,134 |
| CSW610 | LFSB > BKPR | 11 Apr 2026, 06:2411 Apr 2026 | 11 Apr 2026, 06:29 | 13,725 ft | 137 |
| CSW615 | BKPR > LFSB | 10 Apr 2026, 22:3410 Apr 2026 | 10 Apr 2026, 22:40 | 10,525 ft | 26 |
| not transmitted | route not resolved | 10 Apr 2026, 12:1310 Apr 2026 | 10 Apr 2026, 12:14 | 18,400 ft | 2 |
| not transmitted | route not resolved | 10 Apr 2026, 10:4110 Apr 2026 | 10 Apr 2026, 10:41 | 18,575 ft | 2 |
| CSW610 | LFSB > BKPR | 10 Apr 2026, 06:2310 Apr 2026 | 10 Apr 2026, 06:26 | 14,700 ft | 92 |
| CSW615 | BKPR > LFSB | 9 Apr 2026, 22:379 Apr 2026 | 9 Apr 2026, 22:43 | 9,975 ft | 38 |
| CSW612 | LFSB > BKPR | 9 Apr 2026, 12:339 Apr 2026 | 9 Apr 2026, 12:40 | 21,300 ft | 64 |
| not transmitted | route not resolved | 9 Apr 2026, 11:119 Apr 2026 | 9 Apr 2026, 11:11 | 18,000 ft | no position received |
| not transmitted | route not resolved | 7 Apr 2026, 16:107 Apr 2026 | 7 Apr 2026, 16:11 | 34,250 ft | no position received |
| CSW1EP | LSZH > LEPA | 7 Apr 2026, 12:297 Apr 2026 | 7 Apr 2026, 12:48 | 35,000 ft | 1,275 |
| CSW1PM | LEPA > LSZH | 5 Apr 2026, 15:355 Apr 2026 | 5 Apr 2026, 15:51 | 20,725 ft | 569 |
| CSW1EP | LSZH > LEPA | 5 Apr 2026, 11:505 Apr 2026 | 5 Apr 2026, 12:09 | 35,000 ft | 950 |
| CSW1PM | LEPA > LSZH | 3 Apr 2026, 15:523 Apr 2026 | 3 Apr 2026, 16:10 | 21,350 ft | 562 |
| CSW1EP | LSZH > LEPA | 3 Apr 2026, 12:013 Apr 2026 | 3 Apr 2026, 12:21 | 33,025 ft | 1,118 |
| not transmitted | route not resolved | 1 Apr 2026, 15:401 Apr 2026 | 1 Apr 2026, 15:40 | 34,475 ft | no position received |
| not transmitted | route not resolved | 1 Apr 2026, 12:121 Apr 2026 | 1 Apr 2026, 12:17 | 33,425 ft | no position received |
| not transmitted | route not resolved | 31 Mar 2026, 11:3131 Mar 2026 | 31 Mar 2026, 11:37 | 18,625 ft | no position received |
| CSW615 | BKPR > LFSB | 30 Mar 2026, 22:2530 Mar 2026 | 30 Mar 2026, 22:26 | 16,175 ft | 15 |
| CSW612 | LFSB > BKPR | 30 Mar 2026, 12:0430 Mar 2026 | 30 Mar 2026, 12:06 | 17,725 ft | 6 |
